[R] R BATCH problem

Dear all Entering

[R] strange thing with sd

Dear R people I came across a strange thing: sd(rep(0.01, 15)) #0 sd(rep(0.001, 15)) #4.489023e-19 sd(rep(0.1, 15)) #0 sd(rep(0.0001,15)) #1.712427e-24 sd(rep(0.01, 13)) #1.805557e-18 sd(rep(0.001, 13)) #4.513894e-19 sd(rep(0.1, 13)) #0

Re: [R] strange thing with sd

Zitat von Barry Rowlingson [EMAIL PROTECTED]: Peter Flom wrote: I tried your sample code, and a few other variations, and got 0 for all of them, running R 1.8.1 on a Windows machine Not only do I get 0 on R 1.8.1 on Unix (linux, RH8), I get _exactly_ 0. I thought this was going to

[R] spectrum

Dear R users I have two questions about estimating the spectral power of a time series: 1) I came across a funny thing with the following code: data(co2) par(mfrow=c(2,1)) co2.sp1-spectrum(co2,detrend=T,demean=T,span=3) co2.sp2-spectrum(co2[1:468],detrend=T,demean=T,span=3) The first plot