How to access input variable in base workspace?

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Stagleton 2011-8-11

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Hi I want to write a function with one input parameter and no output parameters. How do I access the input parameter in its base worksapce in order to manipulate it?

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Paulo Silva 2011-8-11

Please provide the code so we can have a better idea of what your are doing.

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Fangjun Jiang 2011-8-11

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You have to start with the base workspace. For example, you have par=1 in base workspace. Then you call your function Process(par).

Your function might look like:

function Process(Var)
VarName=inputname(1);
assignin('base',VarName,Var+rand);

However, this is not recommended because you are manipulate variables across boundary or scope. You can always do it this way, assume initially par=1 in base workspace

par=Process(par);

Where your Process() function looks like:

function out=Process(par)
out=par+rand;

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Fangjun Jiang 2011-8-12

@Stagleton, that could work. But you could also do as below if you define the output argument of your function. That is more safer and follow a good programming practice regarding variable scope.

r=1;

r=inc(r);

Stagleton 2011-8-15