From: Huntsinger, Reid <reid_huntsinger_at_merck.com>

Date: Tue 07 Jun 2005 - 02:59:59 EST

R-help@stat.math.ethz.ch mailing list

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

http://www.R-project.org/posting-guide.html

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Jun 07 03:09:09 2005

Date: Tue 07 Jun 2005 - 02:59:59 EST

What do you intend r1 to contain? TRUE and FALSE (an indicator vector?) or
say integers 1,2,3 designating your intervals around your 3 sample points?
So you would e.g. set r1[k,1] to 3 if the kth grid point in [-1,1] lies in
interval 3? Etc? Some more detail would help narrow down the possibilities.

Reid Huntsinger

-----Original Message-----

From: r-help-bounces@stat.math.ethz.ch

[mailto:r-help-bounces@stat.math.ethz.ch] On Behalf Of Erin Hodgess
Sent: Monday, June 06, 2005 11:51 AM

To: r-help@stat.math.ethz.ch

Subject: [R] intervals and data frames

I have a vector which runs from -1 to 1, by .1, inclusively.

Easy to set up. x <- seq(-1,1,.1)

I then sample 3 numbers from x.

y <- sample(x, 3)

Suppose one of my values is -0.7. I want to set up an interval
around that

y1 <- pmax(y-0.1,-1)

y2 <- pmin(y+0.1,1)

For the value -.7, the interval will run from -.8 to -.6.
There will be several intervals.

Again, nothing interesting so far.

However, now I want to set up something that I will call r1. Essentially, r1 "runs" between -1 and 1 as well. I want to place a value in r1 between -.8 and -.6 for my interval, and zeros elsewhere.

I'm trying to use a data frame in which the first column represents the values from -1 to 1. The remaining columns are initially set to zero. Also, I'm trying to avoid loops.

Any suggestions would be much appreciated.

Thanks in advance,

Sincerely

Erin Hodgess

Associate Professor

Department of Computer and Mathematical Sciences
University of Houston - Downtown

mailto: hodgess@gator.uhd.edu

R-help@stat.math.ethz.ch mailing list

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

http://www.R-project.org/posting-guide.html

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Jun 07 03:09:09 2005

*
This archive was generated by hypermail 2.1.8
: Fri 03 Mar 2006 - 03:32:23 EST
*