branch: externals/rec-mode
commit 87abd92d1de76fa0b59c1d0e94b3330e9fb40cac
Author: Jose E. Marchesi <[email protected]>
Commit: Antoine Kalmbach <[email protected]>
rec-mode: new command rec-cmd-statistics.
---
etc/rec-mode.el | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/etc/rec-mode.el b/etc/rec-mode.el
index b77d304..e1f988d 100644
--- a/etc/rec-mode.el
+++ b/etc/rec-mode.el
@@ -171,6 +171,7 @@ hidden by default in navigation mode.")
;; (define-key map [remap move-beginning-of-line]
'rec-cmd-beginning-of-line)
(define-key map [remap undo] 'rec-cmd-undo)
(define-key map "#" 'rec-cmd-count)
+ (define-key map "%" 'rec-cmd-statistic)
(define-key map (kbd "RET") 'rec-cmd-jump)
(define-key map (kbd "TAB") 'rec-cmd-goto-next-field)
(define-key map (kbd "SPC") 'rec-cmd-toggle-field-visibility)
@@ -1903,6 +1904,36 @@ expression."
(when (and sex (not (equal sex "")))
(concat " with sex " sex)))))))
+(defun rec-cmd-statistic ()
+ "Display a statistic on the occurrence of the value contained
+ in the field under point in the minibuffer, if any.
+
+This command is especially useful with enumerated types."
+ (interactive)
+ (let* ((field (rec-current-field))
+ (field-name (rec-field-name field))
+ (type (rec-field-type field-name))
+ (type-kind (when type (rec-type-kind type))))
+ (cond ((equal type-kind 'enum)
+ (let* ((keys (rec-type-data type))
+ (total (rec-count (rec-record-type)))
+ (percentages (mapcar (lambda (key)
+ (let ((key-count (rec-count
(rec-record-type)
+ (concat
field-name " = '" key "'"))))
+ (list key key-count (/ (* key-count
100) total))))
+ keys))
+ str)
+ (mapcar (lambda (occurrence)
+ (setq str (concat str
+ (number-to-string (nth 1 occurrence))
+ " "
+ (nth 0 occurrence)
+ " ("
+ (number-to-string (nth 2 occurrence))
+ "%) ")))
+ percentages)
+ (message "%s" str))))))
+
(defun rec-cmd-append-field ()
"Goto the end of the record and switch to edit record mode."
(interactive)
