CODEWITHSUNDEEP
stringmatlabfunctionsystem
user2040072
user2040072

Reputation: 15

Put into executable function in matlab

very good day all,

I am new to matlab, I am not familiar with most of the matlab function guys and wish can get some tips from you..

The problem is I want one of the system function to be executed. More precisely, I ask a user to input a string and I want to pass this string to my function that executes the string and return to me the output

for instance

input: dog

pass the dog to !wn

The function should be in this form !wn dog 'parameter' . Executable function. I want to execute this function not return me the !wn dog 'parameter'. In matlabe command it is working if i use the system function and then use this 

>> !wn dog param

the above command is working in the command environment but if i want an input from a user and put the input into that function and execute it and i expect the output to be like. Just want to know how to make it executable from a mat file

I tried to do this

 keyword= 'dog'; % 

  x = system('wn'); % this to execute the system function

  output= strcat('!wn',  keyword)

Your kind answer is highly appreciated.

Thank you

Upvotes: 0

Views: 143

Answers (1)

horchler
horchler

Reputation: 18484

I'm not sure if the ! form of calling system functions is going to work in your case. It seems to be designed mainly as a shortcut to be used in the command window and provides no means of capturing output. However, you can use the system function like this:

[~,result] = system(['wn ' input ' ' params]);

or you can generalize it a bit and turn it into a function:

function result=call_wn(input,varargin)
[status,result] = system(['wn ' input sprintf(' %s',varargin{:})]);

This allows a variable number of parameters, including none. input is required. I'm guessing that you're on Windows (I have no idea what the "wn" command is), so also check out dos.

Upvotes: 1

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