breakpoints

Hi,

I have a long matrix of breakpoints: for example, 0.19 0.49 0.69 0.93 1.69

is there an easy function to determine if I have a value of 0.55 for example that this value would fall under the third category since it is between 0.49 and 0.69?

Answer 1

[Andrew Newell]

Assuming your breakpoints are sorted (I'll call them breakpoints), you could do something like this:

x = 0.55;
find(breakpoints<x,1,'last')

Answer 2

[Walter Roberson]

[v, idx] = histc(x, [-inf breakpoints]);

then the value you want is idx