displaying the total number of times an if statement is true

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C.G.
C.G. 2020-11-20
评论： C.G. 2020-11-20
I have a for loop with an if/else loop nested inside this:
xc = particledata{1}(:,5);
xc_array = table2array(xc);
for b = 1:size(xc_array,1)
if xc_array(b,1)>0.188
disp('grain left rice pile')
end
end
The code works, and it displays 'grain left rice pile' if the value is >0.188. For the particlaur file, it should find 29 numbers >0.188.
I would like to write some code which would tell me how many times matlab has found a number >0.188 in the array instead of me counting how many times those words are displayed in the command window.
Could anybody help me with this?

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采纳的回答

Rik
Rik 2020-11-20
You can use the fact that sum will functionally cast your logical array to 0 and 1:
grains=sum(xc_array(:,1)>0.188);
fprintf('%d grain(s) left on rice pile\n',grains);

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