Please why does this code give an error "Index in position 2 exceeds array bounds. Index must not exceed 6"

Please why does this code give an error "Index in position 2 exceeds array bounds. Index must not exceed 6"

For line

plot (time, strain(:, [6,7]

figure(2)

sgtitle('Strain Comparison')

subplot(3,1,1);

plot(time, strain(:,[6,7]))

xtickformat('HH:mm:ss')

legend('Longitudinal','Transverse','Location','northwest')

xlabel('Time');

ylabel('Subbase Strain');

title('Control')

ylim([-800,200]); % put a '%' in front of it.

subplot(3,1,1);

plot(time,strain(:,[10,11]))

xtickformat('HH:mm:ss')

legend('Longitudinal','Transverse','Location','northwest')

xlabel('Time');

ylabel('Subbase Strain');

title('LCC400')

ylim([-200,200]); % put a '%' in front of it.

subplot(3,1,3);

plot(time,strain(:,[12,13]))

xtickformat('HH:mm:ss')

legend('Control','LCC400','Location','northwest')

xlabel('Time');

ylabel('Surface Strain');

title('Longitudinal Strain')

ylim([-300,200]); % put a '%' in front of it.Error

Answer 1

[Adam Danz]

According to the error, the variable "strain" only contains 6 columns but you're indexing a 7th column that doesn't exist. Either your column indices are incorrect or the "strain" variable is not the expected size.

[Abimbola Oyeyi]

Thank you very much. you were right, I was using columns beyond by defined strain value.