# [R] create a zero matrix & fill

Date: Fri, 04 Jul 2008 08:50:41 -0700 (PDT)

I have written a function which returns max,min and variation of a power (see below)
Power is a given matrix(1,n)

I call the function
>Variation<-VAR(p,(n-deltat))

Now the problem is when I want plot(Results,Results). Not possible! I become the following error (in english it means: Error in as.double.default(x) :Object cannot be transformed in double)

> plot(Variation,Variation)

Fehler in as.double.default(x) : (list) Objekt kann nicht nach 'double' umgewandelt werden

Any suggestion?

Hier is the function:
#Computing variation of the power
VAR<-function(power,length){
tvar=pmean=pmin=pmax=varmax=varmin<-matrix(data=0,ncol=(length-tml0)) for(i in tml0:length){
tvar[i]=i

```pmean[i]=mean(power[i:(i+deltat)])
pmin[i]=min(power[i:(i+deltat)])
pmax[i]=max(power[i:(i+deltat)])
varmax[i]=100*(pmax[i]-pmean[i])/pmean[i]
varmin[i]=100*(pmean[i]-pmin[i])/pmean[i]
```
Results=list(tvar,pmean,pmin,pmax,varmax,varmin)

}}

Thanks,

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