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vn_stats
2005 Sep 20
5
Neat way of using R for pivoting?
...n(t) {
cnfac <- factor(t$cnset);
mu <- as.list(by(t$snr, cnfac, mean));
tvar <- as.list(by(t$snr, cnfac, var));
t <- list(mu=mu, var=tvar);
}
vn <- read.table('vn.csv', sep=',');
vn_stats <- get_stats(vn);
vsn <- read.table('vsn.csv', sep=',');
vsn_stats <- get_stats(vsn);
snrs <- as.numeric(names(vn_stats$mu))
matplot(snrs, cbind(vn_stats$mu, vsn_stats$mu));
windows();
matplot(snrs, cbind(vn_stats$var, vsn_stats$var));
******* END SNIPPET *******
Appreciate any helpful hints from the pros.
Cheers!
p.s. We've been having rather a g...