Function that runs all functions in a directory

Hello all,

I want to write a function that loops through all the functions in a given directory and runs them.

For each specific function, I have a variable called FunInputs that tells me what the argument is for each function. For example, the input argument for the function titled 'A' is '930'.

FunInputs=
{'A','930';'B','804';'C','812';'D','830';'E','811';'F','827';'G','931';'H','932';'I','800';'J','814';'K','805';'L','1012';'M','933';'N','820';'O','1010';'P','802';}

In addition, all functions in the directory share the input 'FileCode'. So, when I run function 'A' it looks like:

output = A('FileCode','930');

I'm feeling really lost as to how to go about writing a function that can automatically process my list of functions according to their specific inputs (sorry....I'm a newbie!)

this is what I have so far...

 function [AllFunOutputs] = RunAllFuns(FileCode, FunInputs)
   files   = what('\MATLAB\Funs');
    % get all file names in directory 'Funs'

    funsExist = files(arrayfun(@(f) isMatFun(f), files)); 
    % make sure the files in the directory are functions 

    funNames  = arrayfun(@(f) {stripDotM(f)}, funsExist);
    % strip the '.m' suffix from all file names  

    % below, match the function name with its argument 
     k = 1;
      for i=1:length(FunInputs)
        if(strncmp(FunInputs(i,1),files,1)== 1))
        funNames(k,1) = FunInputs(i,2);
        k = k+1;
        end
      end

    AllFunOutputs = cellfun(@(f) {executeStrAsFun(char(f), T)}, funNames);
    % run the files as functions and combine the results in a matrix
    end

   function [AllFunOutputs] = executeStrAsFun(fname, FileCode, FunInput)
    try
    fun = str2func(fname);         % convert string to a function 
    results = fun(FileCode,FunInput);           % run the function
   catch err
    fprintf('Function: %s\n', err.name);
    fprintf('Line: %s\n', err.line);
    fprintf('Message: %s\n', err.message);
    results = ['ERROR: Couldn''t run function: ' fname];
   end
  end

Thank you so much in advance for your time, help, and consideration!!!!!

[Matt Kindig]

This looks good to me. What doesn't work about this code? Please clarify.

Answer 1

[Jan]

A simpler method to get the function names:

fileDir  = dir(\Matlab\Funs\*.m');
fileName = {fileDir.name};
funcName = strrep(fileName, '.m', '');

I do not understand the line:

if (strncmp(FunInputs(i,1),files,1)== 1))

files is an array, therefore the output of strncmp will be an array also. Then an any or all would be smarter, because if requires a scalar condition such that all is applied implicitely. But why do you compare the first character?

feval might be easier than converting the string to a function handle at first.