Set a bin to count the data points for certain conditions

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Laura
Laura 2013-7-17
Hi there,
I want to count the number of data values that are in this conditions
if it satisfies both conditions then count it
if dist>= R & dist<=(R+dr)
and
if dist1>= R1 & dist1<=(R1+dr1)
Please help.

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Sean de Wolski
Sean de Wolski 2013-7-17
idx = (dist >= R) & (dist<=(R+dr)) & (dist1>=R1) & (dist1<=(R1+dr1)); %all that meet criteria
count == nnz(idx); %how many of these were true?

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