Unable to perform assignment because the left and right sides have a different number of elements.

%% save start date time 
filename = 'Format_competition.xlsx';
table_starttimes = zeros(100,1);
formatOut = 'HH:MM:SS';
for ind = 1:length(table_starttimes);
    date = datestr(now,formatOut)
    table_starttimes(ind) = [date];
    pause;

Error in tijd (line 7)

table_starttimes(ind) = [date];

I don't see why there are not an equal number of elements, can somebody help me?

Answer 1

[KSSV]

%% save start date time 
filename = 'Format_competition.xlsx';
table_starttimes = cell(100,1);
formatOut = 'HH:MM:SS';
for ind = 1:length(table_starttimes);
    date = datestr(now,formatOut)
    table_starttimes{ind} = date;
    pause;

Answer 2

[Peter Perkins]

No idea what

filename = 'Format_competition.xlsx';

has to do with this, so I suspect you have not told us the whole story. In any case, don't use now, don't use datestr, use datetime:

table_starttimes = NaT(100,1);
for ind = 1:length(table_starttimes);
    table_starttimes(ind) = datetime("now","Format","HH:mm:ss");
    pause;
end