How many variables in workspace
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Hi, I need a function how return the number of variables in the Workspace. Does Someone knows if this function exists?
thanks Marco
3 个评论
Jan
2012-12-28
I cannot imagine a situation, where this is useful. Could you be so kind an give me a hint?
Image Analyst
2012-12-28
I couldn't think of any reason either. I figured it must be something like fdep, though somewhat different - for variables instead of functions and classes.
Walter Roberson
2012-12-28
编辑：Walter Roberson
2012-12-28
From the title I thought perhaps the question was going to be what the maximum number of variables in a workspace is. The answer to that appears to be 65533.
采纳的回答
Image Analyst
2012-12-28
编辑：Image Analyst
2012-12-28
variablesInCurrentWorkspace = who
numVariables = length(variablesInCurrentWorkspace)
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JP Hadden
2017-3-15
1 个投票
For the responders, I have a situation where this is useful... we have an RSA which spits out matlab files where there can be a different number of data variables depending on the measurement. It 's useful to know how many there are to be able to analyse them.
1 个评论
Walter Roberson
2017-3-15
编辑：Walter Roberson
2017-3-15
What is an "RSA" in this context?
Does it output MATLAB code? If so then could it be modified to output the variables as structure members instead of independent variables?
If it outputs .mat files then those can be load()'d with an output argument, producing a structure.
With a structure, you can ask about the length of the fieldnames.
If you are working with dynamically generated full variable names, you probably want to avoid that.
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