How to call a function file into a script file?

2013 9 22
1 个回答
9 次查看（30 天）

0 个投票

In my project i've to extract the values of some variables from different function files of MATPOWER. I need to calculate some values using these variables in a script file for simplicity. I have tried [out1,out2,..]=fhandle(in1,in2,...) and @function name to access the functions inside the script file.But it is showing error that the input variable is undefined. Please provide me a solution as soon as possible.

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回答（1 个）

Image Analyst
Image Analyst 2013-9-22

0 个投票

Just turn your script into a function by adding one line at the top, and you can get it all done in a single m-file. For example in test.m:
function test
a = 42;
out = MyFunction(a)
function result = MyFunction(inputValue)
result = inputValue * 100;
The "function test" line was all you had to add to the existing script.

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Maha
Maha 2013-9-22
The problem is that all the inputs i need for calculation are available only in certain function files.When i try to call that functions inorder to get the inputs there is an error.i've tried your answer.still its error
Maha
Maha 2013-9-22
function [f, df, d2f] = opf_costfcn(x, om, varargin) this is the function i need to call in a separate mfile to get the value of 'f'
Image Analyst
Image Analyst 2013-9-22
How are you calling it? You can attach your file now, you know. Use the paper clip icon.
Maha
Maha 2013-9-22
i've used the syntax available in mathworks.com.The error is 'x' is an undefined variable
Maha
Maha 2013-9-22
Now only i'm learning MATLAB coding.So i might have asked a silly question without understanding your answer.Please forgive me if so and thanks for replying Sir/Ma'am!
Image Analyst
Image Analyst 2013-9-22
Well you didn't define x before you passed it to a function. How do you think it's supposed to know what x is if you never told it???

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Maha
Maha
2013-9-22

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