Question

I am trying to use eval to assign a cellValue to a field in a struct. The struct has been pre-initialized. I am getting a horzcat error that I can’t remove. Can you please help me out here. Also, I know using eval is not recommended. Can you suggest a better alternative to it that can be used here. cellValue is a big cell with almost 200,000 rows and this step would be run repeatedly. So vectorization and efficiency is needed. Thanks!

varA = struct('Raw', -1, 'ttm', -1, 'USD', -1) ;
cellValue = { 'AAPL' [10010] 'abc' ;  
              'AAPL' [10020] 'abc' ; 
              'AAPL' [10030] 'abc' } ;

eval([varA '.Raw = ' cellValue ]) %gives horzcat ERROR

% Desired result from varA.Raw = cellValue

varA = 
    Raw: {3x3 cell}
    ttm: -1
    USD: -1

Answer 1

well this works:

str = strcat(varA,'.Raw = cellValue ')  
%varA changes every time. cellValue name is constant.

eval(str)