there are more than 1 element satisfy the command in one column, but I only need to count it one time
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YU-HAN LIAO
el 18 de Ag. de 2019
Comentada: Star Strider
el 18 de Ag. de 2019
hello, experts,
I am new to Matlab community and a beginer to use it
I have a dataset (refer as attachment)
data = textread('January-2018-Adelaide.csv', '', 'headerlines', 1, 'delimiter', ',');
and would like to count how many days satisfy the cammand
which is the temerature exceed 41.0
however, in some days, there are more than one temerature exceed 41.0
and if i use
n_days_above = numel(find(temperatures>41));
it will be count more than one time (it shows: n_days_above =7, but the correct answer is 3 )
how can I solve this problem?
thank you in advanced!
data = textread('January-2018-Adelaide.csv', '', 'headerlines', 1, 'delimiter', ',');
temperatures = data(:, 4:end);
n_days_above = numel(find(temperatures>41));
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Respuesta aceptada
Star Strider
el 18 de Ag. de 2019
Try this:
maxTemp = max(data(:,4:end),[],2);
Above41 = nnz(maxTemp > 41)
producing:
Above41 =
3
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