I cannot give this struct as input of a custom function, how can I do?

Good evening to all,

I was wondering if it is possible to give this structure as input of a custom function:

"hold_on" : 1

"box_on" : 1

"grid_on" : 0

"grid_minor" : 0

because I always get this error: Undefined function 'myfunction' for input arguments of type 'struct'

Can someone help me?

Thank you in advance!

Answer 1

[Torsten]

Works without problems.

Have you saved an m-file named "myfunction.m" in your working directory ?

var.hold_on = 1;
var.box_on = 1;
var.grid_on = 0;
var.grid_minor = 0;
class(var)

ans = 'struct'

myfunction(var)

hold_on = 1

box_on = 1

grid_on = 0

grid_minor = 0

function [] = myfunction(var)
  hold_on = var.hold_on
  box_on = var.box_on
  grid_on = var.grid_on
  grid_minor = var.grid_minor 
end

Answer 2

[Steven Lord]

It is possible to write a function that accepts a struct array as input. Without seeing the body of your myfunction function we can't be certain of the cause of the error message you received, but if I had to guess I'd guess that your myfunction function was not defined as the first function in a file named myfunction.m.

If the file name and the function name differ, you will need to use the file name to call the function. So if "function myfunction(x)" was in a file named pizza.m you would have to call it by the name pizza.

Only the first function in a function file is directly callable by users outside that file.