Hi:

x<-runif(100,0,100)

u <- cut(x, breaks = c(0, 3, 4.5, 6, 8, Inf), labels = c(1:5))

Based on the x I obtained,

> table(u)

u

1 2 3 4 5

3 2 1 2 92

cut() or findInterval() are the two basic functions for discretizing a

numeric variable.

HTH,

Dennis

On Fri, Jul 15, 2011 at 2:29 PM, Michael Haenlein

<

[hidden email]> wrote:

> Dear all,

>

> I have a continuous variable that can take on values between 0 and 100, for

> example: x<-runif(100,0,100)

>

> I also have a second variable that defines a series of thresholds, for

> example: y<-c(3, 4.5, 6, 8)

>

> I would like to convert my continuous variable into a discrete one using the

> threshold variables:

>

> If x is between 0 and 3 the discrete variable should be 1

> If x is between 3 and 4.5 the discrete variable should be 2

> If x is between 4.5 and 6 the discrete variable should be 3

> If x is between 6 and 8 the discrete variable should be 4

> If x is larger than 8 the discrete variable should be 5

>

> Is there a straightforward way of doing this (besides working with several

> if statements in a row)?

>

> Thanks,

>

> Michael

>

> [[alternative HTML version deleted]]

>

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https://stat.ethz.ch/mailman/listinfo/r-help> PLEASE do read the posting guide

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https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide

http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.