loop over struct element

Suppose I create a struct

data.ID0 data.ID1

Suppose I want to have a loop i that first work with data.IDO and then with data.ID1. Please advise.

Answer 1

[Walter Roberson]

structfun(). If the results are scalar numeric values and what you want is an array of the results, then do not use the 'uniform', 0 option. Otherwise use 'uniform', 0, which will cause a struct to be returned with fields the same as the original field names, but with content as generated by the function you specified.

Example:

structfun(@mean2, data)      %mean2 always returns a scalar even for empty input

structfun(@tan, data, 'uniform', 0)    %returns struct with fields ID0 and ID1 in which each value has been replaced by its tan.