calling a function in another function by changing only few input arguments

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Kallam Haranadha Reddy 2017-10-17

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https://ww2.mathworks.cn/matlabcentral/answers/361801-calling-a-function-in-another-function-by-changing-only-few-input-arguments

编辑： Cedric 2017-10-17

采纳的回答： Cedric

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I have written a function function

[ yp,PAC ] = PAgent( c5,c6,c7,rcapa,Aineq5,Bineq5,Aeq5,Beq5,lb,ub,options )

suppose if i have to call this function in another function by changing only the input argument 'rcapa', i.e., other input arguments c5,c6,c7.... will not change, but only 'rcapa' changes, can i write like the following,

 PA1 = @(rcapa) PAgent([],[],[],rcapa,[],[],[],[],[],[],[] );
 [yp1,PAC1]= PA1(rcapa);

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Answer 1

Cedric 2017-10-17

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https://ww2.mathworks.cn/matlabcentral/answers/361801-calling-a-function-in-another-function-by-changing-only-few-input-arguments#answer_286258

编辑：Cedric 2017-10-17

在 MATLAB Online 中打开

If you are in another function where variables with the same names are defined (e.g. because they are arguments of the function), but you want to create a wrapper for PAgent as a function of 1 parameter rcapa that calls another function with the same parameters but with this one updated, do it this way:

 function otherFunction( c5,c6,c7,rcapa,Aineq5,Bineq5,Aeq5,Beq5,lb,ub,options ) 
    PA1 = @(rcapa) PAgent( c5,c6,c7,rcapa,Aineq5,Bineq5,Aeq5,Beq5,lb,ub,options ) ;

then you can call PA1 with the specific value of rcapa, but all the other arguments will remain the same as defined by/in otherFunction.

This is like creating an internal function. All variables that are not defined locally come from the nesting/external function. The only internal/local variable in

PA1 = @(rcapa) PAgent( c5,c6,c7,rcapa,Aineq5,Bineq5,Aeq5,Beq5,lb,ub,options ) ;

is rcapa.