count elements falling within certain thresholds in array in matlab?

Question

I have a huge vector. I have to count values falling within certain ranges. the ranges are like 0-10, 10-20 etc. I have to count the number of values which fall in certain rang

Answer 1

to count the values in a specific range you can use ismember,

if m1 is vector use,

k = sum(ismember(m1,0:10));

If m1 is matrix use k = sum(sum(ismember(m1,0:10)));

for example,

m1=randi(20,[5 5])

 9    10     6    10    16
 8     9    14    20     6
16    13    14     7    11
16    15     4    12    14
 4    16     3     5    18

sum(sum(ismember(m1,1:10)))

12