[Octave-cvsupdate] SF.net SVN: octave: [5066] trunk/octave-forge/main/statistics

[<ws...@us...>]

Revision: 5066
          http://octave.svn.sourceforge.net/octave/?rev=5066&view=rev
Author:   wsloand
Date:     2008-05-18 08:36:23 -0700 (Sun, 18 May 2008)

Log Message:
-----------
caseread.m, casewrite.m: new functions
caseread.dat: test file for caseread

Added Paths:
-----------
    trunk/octave-forge/main/statistics/inst/caseread.m
    trunk/octave-forge/main/statistics/inst/casewrite.m
    trunk/octave-forge/main/statistics/test/caseread.dat

Added: trunk/octave-forge/main/statistics/inst/caseread.m
===================================================================
--- trunk/octave-forge/main/statistics/inst/caseread.m	                        (rev 0)
+++ trunk/octave-forge/main/statistics/inst/caseread.m	2008-05-18 15:36:23 UTC (rev 5066)
@@ -0,0 +1,61 @@
+## Copyright (C) 2008 Bill Denney
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{names} =} caseread (@var{filename})
+## Read case names from an ascii file.
+##
+## Essentially, this reads all lines from a file as text and returns
+## them in a string matrix.
+## @seealso{casewrite, tblread, tblwrite, csv2cell, cell2csv, fopen}
+## @end deftypefn
+
+## Author: Bill Denney <bi...@de...>
+## Description: Read strings from a file
+
+function names = caseread (f="")
+
+  ## Check arguments
+  if nargin != 1
+    print_usage ();
+  endif
+  if isempty (f)
+    ## FIXME: open a file dialog box in this case when a file dialog box
+    ## becomes available
+    error ("caseread: filename must be given")
+  endif
+
+  [fid msg] = fopen (f, "rt");
+  if fid < 0 || (! isempty (msg))
+    error ("caseread: cannot open %s: %s", f, msg);
+  endif
+
+  names = {};
+  t = fgetl (fid);
+  while ischar (t)
+    names{end+1} = t;
+    t = fgetl (fid);
+  endwhile
+  if (fclose (fid) < 0)
+    error ("caseread: error closing f")
+  endif
+  names = strvcat (names);
+
+endfunction
+
+## Tests
+%!shared n
+%! n = ["a  ";"bcd";"ef "];
+%!assert (caseread ("caseread.dat"), n);

Added: trunk/octave-forge/main/statistics/inst/casewrite.m
===================================================================
--- trunk/octave-forge/main/statistics/inst/casewrite.m	                        (rev 0)
+++ trunk/octave-forge/main/statistics/inst/casewrite.m	2008-05-18 15:36:23 UTC (rev 5066)
@@ -0,0 +1,66 @@
+## Copyright (C) 2008 Bill Denney
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} casewrite (@var{strmat}, @var{filename})
+## Write case names to an ascii file.
+##
+## Essentially, this writes all lines from @var{strmat} to
+## @var{filename} (after deblanking them).
+## @seealso{caseread, tblread, tblwrite, csv2cell, cell2csv, fopen}
+## @end deftypefn
+
+## Author: Bill Denney <bi...@de...>
+## Description: Write strings from a file
+
+function names = caseread (s="", f="")
+
+  ## Check arguments
+  if nargin != 2
+    print_usage ();
+  endif
+  if isempty (f)
+    ## FIXME: open a file dialog box in this case when a file dialog box
+    ## becomes available
+    error ("casewrite: filename must be given")
+  endif
+  if isempty (s)
+    error ("casewrite: strmat must be given")
+  elseif ! ischar (s)
+    error ("casewrite: strmat must be a character matrix")
+  elseif ndims (s) != 2
+    error ("casewrite: strmat must be two dimensional")
+  endif
+
+  [fid msg] = fopen (f, "wt");
+  if fid < 0 || (! isempty (msg))
+    error ("casewrite: cannot open %s for writing: %s", f, msg);
+  endif
+
+  for i = 1:rows (s)
+    status = fputs (fid, sprintf ("%s\n", deblank (s(i,:))));
+  endfor
+  if (fclose (fid) < 0)
+    error ("casewrite: error closing f")
+  endif
+
+endfunction
+
+## Tests
+%!shared s
+%! s = ["a  ";"bcd";"ef "];
+%!test
+%! casewrite (s, "casewrite.dat")
+%! assert(caseread ("casewrite.dat"), s);

Added: trunk/octave-forge/main/statistics/test/caseread.dat
===================================================================
--- trunk/octave-forge/main/statistics/test/caseread.dat	                        (rev 0)
+++ trunk/octave-forge/main/statistics/test/caseread.dat	2008-05-18 15:36:23 UTC (rev 5066)
@@ -0,0 +1,3 @@
+a
+bcd
+ef
\ No newline at end of file


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