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tp4630057
2012 May 15
0
Indexing in summaryBy
...ata1$b0.m1)
summaryBy(b0.m5 X, data=mydata, FUN=c(mean, rmse))
I would need to be able to index inside the rmse function, i.e. something
like:
sqrt(sum((par2[X==i]- est)^2) /length(est))
How can I fix this?
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