MATLAB Function Reference Volume 1: A - E - Bad Request

2assignin
Purpose Assign a value to a workspace variable
Syntax assignin(ws,'var',val)
assignin
Description assignin(ws,'var',val) assigns the value val to the variable var in the
workspace ws. var is created if it doesn’t exist. ws can have a value of 'base' or
'caller' to denote the MATLAB base workspace or the workspace of the caller
function.
The assignin function is particularly useful for these tasks:
• Exporting data from a function to the MATLAB workspace
• Within a function, changing the value of a variable that is defined in the
workspace of the caller function (such as a variable in the function argument
list)
Remarks The MATLAB base workspace is the workspace that is seen from the MATLAB
command line (when not in the debugger). The caller workspace is the
workspace of the function that called the M-file. Note the base and caller
workspaces are equivalent in the context of an M-file that is invoked from the
MATLAB command line.
Examples This example creates a dialog box for the image display function, prompting a
user for an image name and a colormap name. The assignin function is used
to export the user–entered values to the MATLAB workspace variables imfile
and cmap.
prompt = {'Enter image name:','Enter colormap name:'};
title = 'Image display - assignin example';
lines = 1;
def = {'my_image','hsv'};
answer = inputdlg(prompt,title,lines,def);
assignin('base','imfile',answer{1});
assignin('base','cmap',answer{2});
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