Calling .mat file into function

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fatema saba
fatema saba 2014-12-8
回答： Pablo Díez 2020-3-21
Hi I have a question about calling contents of a .mat file into function. for example you save some matrices into .mat file and now you want to calling them into function.
How can do it please?

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回答（2 个）

Geoff Hayes
Geoff Hayes 2014-12-9
编辑：Geoff Hayes 2014-12-9
Fatema - see the load function for details on loading a mat file.
  2 个评论
fatema saba
fatema saba 2014-12-9
Thank you, I have done that I have loaded('test.mat')like that:
function base=MyBase()
load('test.mat')
evalin('base','variable')
%my code
but for handling this function it is needed to load my .mat file from command window before. I want that I can handle or run my function without loading mat file from command window before that. thank you
Geoff Hayes
Geoff Hayes 2014-12-9
Fatema - I don't understand what you mean by it is needed to load my .mat file from command window before. Why not assign, in your function, the result of the load to a structure as
data = load('test.mat');
And, what is the purpose of the evalin call?

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Pablo Díez
Pablo Díez 2020-3-21
You can extract the variable which you want from the model workspace doing the following in a Matlab Function block:
coder.extrinsic('get_param','getVariable');
mdlWks = get_param('your_model.slx','ModelWorkspace');
variable= getVariable(mdlWks,'variable_name');

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