Check for missing object in workspace
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In a script, how do I check to see whether an object (array) exists before I try to operate on it. Something like:
if object exists then
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Image Analyst
2011-8-11
From the help for "exist()":
The following example indicates that testresults is both a variable in the workspace and a folder on the search path:
exist('testresults','var')
ans =
1
exist('testresults','dir')
ans =
7
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Stephen
2011-8-11
2 个评论
Image Analyst
2011-8-11
I was just going to say that. That's a very common mistake. No you can't delete the string - otherwise exist() would have no arguments whatsoever that you're passing in. You have to pass in something.
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