I am having trouble building a structure out of a nested function, using data from another structure, and
then accessing the values for later calculations. I will write down my process as best I can, although
simplified.
The file containing parameters and variables for each member of the test data set:
Parameterfile.m
>>N=3; % number of members in the dataset. These codes will be used to run large dataset; 3 is just for
example.
>>i=1
>>Mid(i).var1=var1value1;
>>Mid(i).var2=var2value1;
>>Mid(i).var3=var3value1;
>>
>>i=2
>>Mid(i).var1=var1value2;
>>Mid(i).var2=var2value2;
>>Mid(i).var3=var3value2;
>>
>>i=3
>>Mid(i).var1=var1value3;
>>Mid(i).var2=var2value3;
>>Mid(i).var3=var3value3;
% etc.
>>
% This builds a 1x3 structure (Mid) for all of the variables for each of the members of the set (i=1, 2
and 3).
% Then, to use these fields in the build function, I define these fields as variables
>>
>>in1= Mid(i).var1;
>>in2= Mid(i).var2;
>>in3= Mid(i).var3;
% etc.
Masterscript.m
% First I call the file containing the parameters.
>>Parameterfile;
% then set up a loop through the members of the data set to build the structure with data from each
member
>>for i=1:N
>>Parameterfile;
>>[Out(i)]=build(in1,in2,in3);
>>end
% where Out is the structure I want to build to be used in later processing.
% I need to call the parameterfile again within the loop, otherwise the rest of the process only uses
i=N, and repeats all of the calculations for N times with the same data (because the structure Mid only
contains data from i=N)..
The build function (which is called in the Mastercript)
build.m
>>function [Out]=build(in1,in2,in3)
>>
>>parameterfile;
>>Out.in1=in1;
>>Out.in2=in2;
>>Out.in3=in3;
% calculations
>>Out.res1=result1;
>>Out.res2=result2;
% result1, result2, etc are saved in the structure to be used in further processing steps
>>end
The first structure, Mid, is created successfully, with all of the variables from each member, i=1:N
The second structure (Out) on the other hand is a 1x3 struct, where the first two fields (corresponding
to i=1 and i=2) are empty, and the last field is complete with the data from the i=3 member of the data
set.
From this point, a suite of calculations are performed using the data (result1, result2, etc) from the
structure Out, each set of calculations run on a loop from i=1:N.
I can actually go through with the entire process of calculations that follow utilizing the information
from the Out structure, but only calculations using the last field (i=N) are processed. Plots that
correspond to the empty fields just come out blank (as could be expected since the fields in the
structure are blank).
So, what I need is to have the structure Out save all of the fields for each member of the test (i=1:N-1),
not just for the last member (i=N).
Any input on what I am missing would be greatly appreciated.
