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How to access workspace variables one by one using m-script

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gvreddy
gvreddy 2015-6-1
编辑： gvreddy 2015-6-15
Hello,
I would like to read all workspace variables into array and check whether the name of variable is Matlab keyword or not. For example, I have four variables in workspace(a = 1;b=2;c=3;d=4;). I want to check if the varaible is keyword or not using matlab inbuilt function(iskeyword()) like below.
iskeyword('a')
ans =
0
>> iskeyword('if')
ans =
1
Is it possible check all base work space variables like this?

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采纳的回答

Nobel Mondal
Nobel Mondal 2015-6-1
You can get all the workspace variables like this:
>> varList = evalin('base', 'who');
Then check individual parameters:
>> iskeyword(varList{k}) % for k-th parameter
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Nobel Mondal
Nobel Mondal 2015-6-1
编辑：Nobel Mondal 2015-6-1
Ah, you're probably calling this from inside a function. You need to define the WorkSpace context: 'base' or 'caller'
Or else, you simply can try
>> varList = who;
If the scope isn't changing.
gvreddy
gvreddy 2015-6-1
编辑：gvreddy 2015-6-15
Hello Nobel,
after small change for your syntax.I got what I need.
allBaseWorkspaceVar = evalin('base','whos');

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更多回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2015-6-1
a = 1;
b=2;
c=3;
d=4;
s1=whos
out=cellfun(@iskeyword,{s1.name})
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gvreddy
gvreddy 2015-6-1
but when I type command "iskeyword(y)" , Matlab returns value '1'
what is that mean?
Azzi Abdelmalek
Azzi Abdelmalek 2015-6-1
Maybe you need this
s1=whos
s2={s1.name}
for k=1:numel(s1)
out(k)=iskeyword(eval(s2{k}))
end

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