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78cdf14939
* lisp/ob.el (org-babel-result-cond): This function should now be used by all language backends to handle the processing of raw code block output into scalar results, table results, or ignored results depending on the value of result-params. * lisp/ob-C.el (org-babel-C-execute): Use org-babel-result-cond. * lisp/ob-R.el (org-babel-R-evaluate-external-process): Use org-babel-result-cond. (org-babel-R-evaluate-session): Use org-babel-result-cond. * lisp/ob-awk.el (org-babel-execute:awk): Use org-babel-result-cond. * lisp/ob-clojure.el (org-babel-execute:clojure): Use org-babel-result-cond. * lisp/ob-emacs-lisp.el (org-babel-execute:emacs-lisp): Use org-babel-result-cond. * lisp/ob-fortran.el (org-babel-execute:fortran): Use org-babel-result-cond. * lisp/ob-io.el (org-babel-io-evaluate): Use org-babel-result-cond. * lisp/ob-java.el (org-babel-execute:java): Use org-babel-result-cond. * lisp/ob-lisp.el (org-babel-execute:lisp): Use org-babel-result-cond. * lisp/ob-maxima.el (org-babel-execute:maxima): Use org-babel-result-cond. * lisp/ob-picolisp.el (org-babel-execute:picolisp): Use org-babel-result-cond. * lisp/ob-python.el (org-babel-python-evaluate-external-process): Use org-babel-result-cond. (org-babel-python-evaluate-session): Use org-babel-result-cond. * lisp/ob-scala.el (org-babel-scala-evaluate): Use org-babel-result-cond. * lisp/ob-sh.el (org-babel-sh-evaluate): Use org-babel-result-cond. * lisp/ob-shen.el (org-babel-execute:shen): Use org-babel-result-cond. * lisp/ob-sql.el (org-babel-execute:sql): Use org-babel-result-cond. * lisp/ob-sqlite.el (org-babel-execute:sqlite): Use org-babel-result-cond.
374 lines
13 KiB
EmacsLisp
374 lines
13 KiB
EmacsLisp
;;; ob-R.el --- org-babel functions for R code evaluation
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;; Copyright (C) 2009-2012 Free Software Foundation, Inc.
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;; Author: Eric Schulte
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;; Dan Davison
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;; Keywords: literate programming, reproducible research, R, statistics
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;; Homepage: http://orgmode.org
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Org-Babel support for evaluating R code
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;;; Code:
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(require 'ob)
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(require 'ob-ref)
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(require 'ob-comint)
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(require 'ob-eval)
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(eval-when-compile (require 'cl))
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(declare-function orgtbl-to-tsv "org-table" (table params))
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(declare-function R "ext:essd-r" (&optional start-args))
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(declare-function inferior-ess-send-input "ext:ess-inf" ())
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(declare-function ess-make-buffer-current "ext:ess-inf" ())
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(declare-function ess-eval-buffer "ext:ess-inf" (vis))
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(declare-function org-number-sequence "org-compat" (from &optional to inc))
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(declare-function org-remove-if-not "org" (predicate seq))
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(defconst org-babel-header-args:R
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'((width . :any)
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(height . :any)
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(bg . :any)
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(units . :any)
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(pointsize . :any)
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(antialias . :any)
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(quality . :any)
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(compression . :any)
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(res . :any)
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(type . :any)
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(family . :any)
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(title . :any)
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(fonts . :any)
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(version . :any)
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(paper . :any)
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(encoding . :any)
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(pagecentre . :any)
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(colormodel . :any)
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(useDingbats . :any)
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(horizontal . :any)
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(results . ((file list vector table scalar verbatim)
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(raw org html latex code pp wrap)
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(replace silent append prepend)
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(output value graphics))))
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"R-specific header arguments.")
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(defvar org-babel-default-header-args:R '())
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(defcustom org-babel-R-command "R --slave --no-save"
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"Name of command to use for executing R code."
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:group 'org-babel
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:version "24.1"
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:type 'string)
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(defvar ess-local-process-name) ; dynamically scoped
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(defun org-babel-edit-prep:R (info)
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(let ((session (cdr (assoc :session (nth 2 info)))))
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(when (and session (string-match "^\\*\\(.+?\\)\\*$" session))
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(save-match-data (org-babel-R-initiate-session session nil)))))
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(defun org-babel-expand-body:R (body params &optional graphics-file)
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"Expand BODY according to PARAMS, return the expanded body."
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(let ((graphics-file
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(or graphics-file (org-babel-R-graphical-output-file params))))
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(mapconcat
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#'identity
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((lambda (inside)
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(if graphics-file
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(append
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(list (org-babel-R-construct-graphics-device-call
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graphics-file params))
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inside
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(list "dev.off()"))
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inside))
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(append (org-babel-variable-assignments:R params)
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(list body))) "\n")))
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(defun org-babel-execute:R (body params)
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"Execute a block of R code.
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This function is called by `org-babel-execute-src-block'."
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(save-excursion
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(let* ((result-params (cdr (assoc :result-params params)))
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(result-type (cdr (assoc :result-type params)))
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(session (org-babel-R-initiate-session
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(cdr (assoc :session params)) params))
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(colnames-p (cdr (assoc :colnames params)))
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(rownames-p (cdr (assoc :rownames params)))
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(graphics-file (org-babel-R-graphical-output-file params))
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(full-body (org-babel-expand-body:R body params graphics-file))
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(result
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(org-babel-R-evaluate
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session full-body result-type result-params
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(or (equal "yes" colnames-p)
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(org-babel-pick-name
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(cdr (assoc :colname-names params)) colnames-p))
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(or (equal "yes" rownames-p)
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(org-babel-pick-name
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(cdr (assoc :rowname-names params)) rownames-p)))))
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(if graphics-file nil result))))
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(defun org-babel-prep-session:R (session params)
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"Prepare SESSION according to the header arguments specified in PARAMS."
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(let* ((session (org-babel-R-initiate-session session params))
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(var-lines (org-babel-variable-assignments:R params)))
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(org-babel-comint-in-buffer session
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(mapc (lambda (var)
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(end-of-line 1) (insert var) (comint-send-input nil t)
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(org-babel-comint-wait-for-output session)) var-lines))
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session))
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(defun org-babel-load-session:R (session body params)
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"Load BODY into SESSION."
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(save-window-excursion
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(let ((buffer (org-babel-prep-session:R session params)))
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(with-current-buffer buffer
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(goto-char (process-mark (get-buffer-process (current-buffer))))
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(insert (org-babel-chomp body)))
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buffer)))
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;; helper functions
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(defun org-babel-variable-assignments:R (params)
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"Return list of R statements assigning the block's variables."
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(let ((vars (mapcar #'cdr (org-babel-get-header params :var))))
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(mapcar
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(lambda (pair)
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(org-babel-R-assign-elisp
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(car pair) (cdr pair)
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(equal "yes" (cdr (assoc :colnames params)))
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(equal "yes" (cdr (assoc :rownames params)))))
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(mapcar
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(lambda (i)
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(cons (car (nth i vars))
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(org-babel-reassemble-table
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(cdr (nth i vars))
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(cdr (nth i (cdr (assoc :colname-names params))))
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(cdr (nth i (cdr (assoc :rowname-names params)))))))
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(org-number-sequence 0 (1- (length vars)))))))
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(defun org-babel-R-quote-tsv-field (s)
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"Quote field S for export to R."
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(if (stringp s)
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(concat "\"" (mapconcat 'identity (split-string s "\"") "\"\"") "\"")
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(format "%S" s)))
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(defun org-babel-R-assign-elisp (name value colnames-p rownames-p)
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"Construct R code assigning the elisp VALUE to a variable named NAME."
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(if (listp value)
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(let ((max (apply #'max (mapcar #'length (org-remove-if-not
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#'sequencep value))))
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(min (apply #'min (mapcar #'length (org-remove-if-not
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#'sequencep value))))
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(transition-file (org-babel-temp-file "R-import-")))
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;; ensure VALUE has an orgtbl structure (depth of at least 2)
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(unless (listp (car value)) (setq value (list value)))
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(with-temp-file transition-file
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(insert
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(orgtbl-to-tsv value '(:fmt org-babel-R-quote-tsv-field))
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"\n"))
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(let ((file (org-babel-process-file-name transition-file 'noquote))
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(header (if (or (eq (nth 1 value) 'hline) colnames-p)
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"TRUE" "FALSE"))
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(row-names (if rownames-p "1" "NULL")))
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(if (= max min)
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(format "%s <- read.table(\"%s\",
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header=%s,
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row.names=%s,
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sep=\"\\t\",
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as.is=TRUE)" name file header row-names)
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(format "%s <- read.table(\"%s\",
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header=%s,
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row.names=%s,
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sep=\"\\t\",
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as.is=TRUE,
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fill=TRUE,
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col.names = paste(\"V\", seq_len(%d), sep =\"\"))"
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name file header row-names max))))
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(format "%s <- %s" name (org-babel-R-quote-tsv-field value))))
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(defvar ess-ask-for-ess-directory) ; dynamically scoped
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(defun org-babel-R-initiate-session (session params)
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"If there is not a current R process then create one."
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(unless (string= session "none")
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(let ((session (or session "*R*"))
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(ess-ask-for-ess-directory
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(and (and (boundp 'ess-ask-for-ess-directory) ess-ask-for-ess-directory)
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(not (cdr (assoc :dir params))))))
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(if (org-babel-comint-buffer-livep session)
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session
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(save-window-excursion
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(require 'ess) (R)
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(rename-buffer
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(if (bufferp session)
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(buffer-name session)
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(if (stringp session)
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session
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(buffer-name))))
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(current-buffer))))))
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(defun org-babel-R-associate-session (session)
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"Associate R code buffer with an R session.
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Make SESSION be the inferior ESS process associated with the
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current code buffer."
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(setq ess-local-process-name
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(process-name (get-buffer-process session)))
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(ess-make-buffer-current))
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(defun org-babel-R-graphical-output-file (params)
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"Name of file to which R should send graphical output."
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(and (member "graphics" (cdr (assq :result-params params)))
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(cdr (assq :file params))))
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(defun org-babel-R-construct-graphics-device-call (out-file params)
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"Construct the call to the graphics device."
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(let ((devices
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'((:bmp . "bmp")
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(:jpg . "jpeg")
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(:jpeg . "jpeg")
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(:tex . "tikz")
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(:tiff . "tiff")
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(:png . "png")
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(:svg . "svg")
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(:pdf . "pdf")
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(:ps . "postscript")
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(:postscript . "postscript")))
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(allowed-args '(:width :height :bg :units :pointsize
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:antialias :quality :compression :res
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:type :family :title :fonts :version
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:paper :encoding :pagecentre :colormodel
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:useDingbats :horizontal))
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(device (and (string-match ".+\\.\\([^.]+\\)" out-file)
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(match-string 1 out-file)))
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(extra-args (cdr (assq :R-dev-args params))) filearg args)
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(setq device (or (and device (cdr (assq (intern (concat ":" device))
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devices))) "png"))
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(setq filearg
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(if (member device '("pdf" "postscript" "svg" "tikz")) "file" "filename"))
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(setq args (mapconcat
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(lambda (pair)
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(if (member (car pair) allowed-args)
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(format ",%s=%S"
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(substring (symbol-name (car pair)) 1)
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(cdr pair)) ""))
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params ""))
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(format "%s(%s=\"%s\"%s%s%s)"
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device filearg out-file args
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(if extra-args "," "") (or extra-args ""))))
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(defvar org-babel-R-eoe-indicator "'org_babel_R_eoe'")
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(defvar org-babel-R-eoe-output "[1] \"org_babel_R_eoe\"")
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(defvar org-babel-R-write-object-command "{function(object,transfer.file){object;invisible(if(inherits(try({tfile<-tempfile();write.table(object,file=tfile,sep=\"\\t\",na=\"nil\",row.names=%s,col.names=%s,quote=FALSE);file.rename(tfile,transfer.file)},silent=TRUE),\"try-error\")){if(!file.exists(transfer.file))file.create(transfer.file)})}}(object=%s,transfer.file=\"%s\")")
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(defun org-babel-R-evaluate
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(session body result-type result-params column-names-p row-names-p)
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"Evaluate R code in BODY."
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(if session
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(org-babel-R-evaluate-session
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session body result-type result-params column-names-p row-names-p)
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(org-babel-R-evaluate-external-process
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body result-type result-params column-names-p row-names-p)))
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(defun org-babel-R-evaluate-external-process
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(body result-type result-params column-names-p row-names-p)
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"Evaluate BODY in external R process.
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If RESULT-TYPE equals 'output then return standard output as a
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string. If RESULT-TYPE equals 'value then return the value of the
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last statement in BODY, as elisp."
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(case result-type
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(value
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(let ((tmp-file (org-babel-temp-file "R-")))
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(org-babel-eval org-babel-R-command
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(format org-babel-R-write-object-command
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(if row-names-p "TRUE" "FALSE")
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(if column-names-p
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(if row-names-p "NA" "TRUE")
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"FALSE")
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(format "{function ()\n{\n%s\n}}()" body)
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(org-babel-process-file-name tmp-file 'noquote)))
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(org-babel-R-process-value-result
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(org-babel-result-cond result-params
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(with-temp-buffer
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(insert-file-contents tmp-file)
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(buffer-string))
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(org-babel-import-elisp-from-file tmp-file '(16)))
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column-names-p)))
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(output (org-babel-eval org-babel-R-command body))))
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(defun org-babel-R-evaluate-session
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(session body result-type result-params column-names-p row-names-p)
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"Evaluate BODY in SESSION.
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If RESULT-TYPE equals 'output then return standard output as a
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string. If RESULT-TYPE equals 'value then return the value of the
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last statement in BODY, as elisp."
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(case result-type
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(value
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(with-temp-buffer
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(insert (org-babel-chomp body))
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(let ((ess-local-process-name
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(process-name (get-buffer-process session)))
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(ess-eval-visibly-p nil))
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(ess-eval-buffer nil)))
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(let ((tmp-file (org-babel-temp-file "R-")))
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(org-babel-comint-eval-invisibly-and-wait-for-file
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session tmp-file
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(format org-babel-R-write-object-command
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(if row-names-p "TRUE" "FALSE")
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(if column-names-p
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(if row-names-p "NA" "TRUE")
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"FALSE")
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".Last.value" (org-babel-process-file-name tmp-file 'noquote)))
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(org-babel-R-process-value-result
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(org-babel-result-cond result-params
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(with-temp-buffer
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(insert-file-contents tmp-file)
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(buffer-string))
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(org-babel-import-elisp-from-file tmp-file '(16)))
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column-names-p)))
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(output
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(mapconcat
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#'org-babel-chomp
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(butlast
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(delq nil
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(mapcar
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(lambda (line) (when (> (length line) 0) line))
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(mapcar
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(lambda (line) ;; cleanup extra prompts left in output
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(if (string-match
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"^\\([ ]*[>+\\.][ ]?\\)+\\([[0-9]+\\|[ ]\\)" line)
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(substring line (match-end 1))
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line))
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(org-babel-comint-with-output (session org-babel-R-eoe-output)
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(insert (mapconcat #'org-babel-chomp
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(list body org-babel-R-eoe-indicator)
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"\n"))
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(inferior-ess-send-input)))))) "\n"))))
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(defun org-babel-R-process-value-result (result column-names-p)
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"R-specific processing of return value.
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Insert hline if column names in output have been requested."
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(if column-names-p
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(cons (car result) (cons 'hline (cdr result)))
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result))
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(provide 'ob-R)
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;;; ob-R.el ends here
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