CODEWITHSUNDEEP
matlabfunctiondynamic
user2574476
user2574476

Reputation: 5

How to create a matrix of functions dynamically

I want to create a matrix of functions, however I'd like to dynamically generate it. For example:

myMatrix = zeros(3);
test = @(x) x*y;
for ii = 1:3
    myMatrix(ii) = test(ii);
end

something like that to generate: @(y) [y, 2*y, 3*y]

I do not have access to the sym library.

Upvotes: 0

Views: 141

Answers (2)

Rody Oldenhuis
Rody Oldenhuis

Reputation: 38032

Depending on your purposes, you can make a single function which generates the matrix you have in your example: 

>> f = @(y) bsxfun(@times, 1:3, y(:));
>> f(2:5)
ans =
    2     4     6
    3     6     9
    4     8    12
    5    10    15

Upvotes: 1

Marcin
Marcin

Reputation: 238081

You can't make a matrix of functions, but you can make cell of function handles, e.g.

cellOfFunctions = {};

for i = 1:3
    cellOfFunctions{end + 1} = @(y) y*i;
end

Then you can get each handle as follows (for the first function handle):

fh1 = cellOfFunctions{1};

Then execute it with y = 3:

result = fh1(3);

Upvotes: 3

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