disp_value(string, workspace)

function disp_value(string, workspace)
% DISP_VALUE nicely displays an expression and its value.
%     By default, the caller workspace is used to evaluate the expression.
%     To specify a different workspace, use: DISP_VALUE(expression,
%     workspace) At the time this function was written, the only two valid
%     workspace specifications were 'base' and 'caller'.
%
%     For example, if A=1:2, then DISP_VALUE('A.''') produces:
%
%     A.' =
%        1
%        2

% $Source: /home/stpierre/cvsroot/matlab/tools/test_tools/disp_value.m,v $
% $Revision: 1.5 $
% $Date: 2009-07-26 20:41:24 $

% Copyright (c) 2000-2009, Jay A. St. Pierre.  All rights reserved.

if ~ischar(string)
  error('input must be a string (try quoting the input expression)')
end

if nargin==1
  workspace='caller';
end

value=evalin(workspace, string);
if(min(size(value))==1)
  disp([string, ' ='])
  for n=1:size(value,1)
    disp(['   ', num2str(value(n,:))])
  end
else
  disp(['value = ',string])
  value %#ok<NOPRT>
end