How to insert a structure into a function in matlab -

i writing matlab function :

function [resultnorm]= exploreffort (n, loop, step) ... somelines ... m=bench(a,b).y ; end

but seems matlab compiler doesn't let me use structure in function, error is:

error: file: exploreffort.m line: 20 column: 15 functions cannot indexed using {} or . indexing.

p.s: bench definition

bench =   24x5 struct array fields:  application dataset mica micanorm db y

could mention how gonna able fix that?

method-1

there possibility define structure (namely here, bench) global outside file , call global bench; right before first appearance of bench.

method-2

the safer choice passing structure among input argument of function :

function [resultnorm]= exploreffort (n, loop, step, `bench`)

in case no need prior unnecessary globalization.

And