I know how to do this when creating the time series variable in one expression, e.g.

valuesTS1<-ts(values,start=2000); # Frequency naturally defaults to 1


How can I specify the frequency of a time series?

> values=c(12,34,65,12);
> values<-ts(values);
> frequency(values);
[1] 1
> start(values)
[1] 1 1
> frequency(values)<-12;
Error in frequency(values) <- 12 : could not find function "frequency<-"
> 
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