From: Chun-Ying Lee <u9370004_at_cc.kmu.edu.tw>

Date: Wed 27 Jul 2005 - 18:51:37 EST

y<-c(0,0,0,0.53,1.34,1.79,2.07,1.88,

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 Wed Jul 27 18:56:31 2005

Date: Wed 27 Jul 2005 - 18:51:37 EST

I have two set of data, as follow: x<-c(0,0,0.28,0.55,1.2,2,1.95,1.85, 1.6,0.86,0.78,0.6,0.21,0.18)

y<-c(0,0,0,0.53,1.34,1.79,2.07,1.88,

1.52,0.92,0.71,0.55,0.32,0.19)

i<-1:length(x)

I want to sum each (x[i]-y[i])^2/x[i] together,
like:

*>Sum <-sum((x[i]-y[i])^2/x[i])
**>Sum
*

[1] NaN

Because the denominator shoud not be zero.
So I want to overlook those when x[i]=0,
and just to sum those x[i] not equal to 0.
What should I do?

Any suggestion.

Thanks in advance !!

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 Wed Jul 27 18:56:31 2005

*
This archive was generated by hypermail 2.1.8
: Fri 03 Mar 2006 - 03:34:02 EST
*