Choosing a random number between x and y

Hi,

Ive been trying to find a function that will allow me to pull out a number
between a minimum and maximum threshold.

I want a random decimal number between, for example, 0 and 0.5 or 0 and 0.7.
I've been searching everywhere for a function that will allow me to do this
in R, but I have yet to be successful. Any help would be much appreciated.

Thanks in advance

If the numbers are to be uniformly distributed within the range you
specify, see ?runif:

runif(10, 0, 0.5)

[1] 0.33273548 0.34751295 0.15387123 0.32831769 0.01863003 0.28881336
 [7] 0.25578130 0.47281504 0.29631693 0.21392932

runif(10, 0, 0.7)

[1] 0.52535461 0.12373738 0.40943192 0.02131712 0.32761085 0.22612708
 [7] 0.40411518 0.33841189 0.02760388 0.03942751

This would be covered, for example, in An Introduction to R:

http://cran.r-project.org/doc/manuals/R-intro.html#Probability-distributions


HTH,

Marc Schwartz