Loop: Index Exceeds Matrix Dimensions / less values than required.

Hello Everyone,

How can settle the following code so that It may run properly.

clear;
clc;

load('Dataset.mat'); % length of dataset is 189.

start_limit = 1; % initialization
end_limit = 6; % initialization
Final = struct(); % structure
limit = (length(Dataset))/6; % I want to have a division of 6. i.e. 189/6 = 31.5
for i = 1:limit % Note: Length of Dataset is 189
    Values = Dataset(start_limit:end_limit,13); % runs best till 186, since 186 is wholy divisble by 6.
    FieldName = strcat('Name', num2str(i));
    Final.(FieldName) = cell2mat(Values);
    start_limit = start_limit+6;
    end_limit = end_limit+6;
end

Code runs till 186 but i want to have a values till 189. When i add +1 to limit, i got following error:

Index exceeds matrix dimensions.

Error in Untitled (line 35)

Values = Dataset(start_limit:end_limit,13);

I understand the error but how to overcome this?

Any help would be appreciated :-)

Regards,

Waqar Ali Memon

Answer 1

[Rik]

If it is fine to use fewer values for the end of your loop, you can do this:

%replace this
Dataset(start_limit:end_limit,13)
%by this
Dataset(start_limit:min(end_limit,end),13)

However, you should probably not be using a struct with numbered fields. I would suggest a struct array instead.

[Waqar Ali Memon]

Thank you Rik, for elegant and accurate solution. :-). I would be getting in your suggestion as well :-).