Hello, 

I am dealing with numeric vectors 10^5 to 10^6 elements long. The values are 
sorted (with duplicates) in the vector (v). I am obtaining the length of 
vectors such as (v < c) or (v > c1 & v < c2), where c, c1, c2 are some scalar 
variables. What is the most efficient way to do this?

I am using sum(v < c) since TRUE's are 1's and FALSE's are 0's. This seems to 
me more efficient than length(which(v < c)), but, please, correct me if I'm 
wrong. So, is there anything faster than what I already use?

I'm running R 2.14.2 on Linux kernel 3.4.34.

I appreciate your time, 

Mikhail
	[[alternative HTML version deleted]]

