清空筛选条件
清空筛选条件

there are more than 1 element satisfy the command in one column, but I only need to count it one time

1 次查看（过去 30 天）
YU-HAN LIAO
YU-HAN LIAO 2019-8-18
评论： Star Strider 2019-8-18
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));

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2019-8-18
Try this:
maxTemp = max(data(:,4:end),[],2);
Above41 = nnz(maxTemp > 41)
producing:
Above41 =
3

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Characters and Strings 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by