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How to get a script to only give me the number of elements less than 2?

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Kyle Donk
Kyle Donk on 9 Jan 2020
Commented: David Hill on 9 Jan 2020
I have a script in which y equals 100 various numbers. I was able to sort the numbers in order from least to greatest, but I need the script to give me the amount of numbers that are less than 2. How would I go about doing this?

Accepted Answer

David Hill
David Hill on 9 Jan 2020
nnz(y<2);
  4 Comments
David Hill
David Hill on 9 Jan 2020
But each time you run the script,
z=nnz(y<2);
will provide you the number of values of y <2

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More Answers (1)

Meg Noah
Meg Noah on 9 Jan 2020
Here are random numbers as an example. It plots all the values in blue, finds indices for values less than 2, and plots those values in red.
x = 1:100;
y = 20*rand(100,1)-10;
ind = find(y < 2);
figure()
plot(x,y,'.b');
hold on
plot(x(ind),y(ind),'.r');
  2 Comments
Meg Noah
Meg Noah on 9 Jan 2020
to display on the console, just use num2str or fprintf
num2str(numel(ind))
fprintf(1,'There are %d values less than 2\n',numel(ind))

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