count elements falling within certain thresholds in array in matlab? -

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i have huge vector. have count values falling within ranges. ranges 0-10, 10-20 etc. have count number of values fall in range.

i did : 

for i=1:numel(m1) if (0<m1(i)<=10)==1 k=k+1; end end

also: 

if not(isnan(m1))==1 x=(0<m1<=10); end

but both times gives array contains 1s. wrong doing?

you can (also works non integers)

k = sum(m1>0 & m1<=10)

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