search for: sigmaexpr

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2012 Jul 21
2
two questions re: the use of lattice
...each = 250), rep(c(5, 10, 20, 30, 50), each = 50)) z <- rbind(cbind(z, 0), cbind(z, 20), cbind(z, 40)) z <- cbind(z, rnorm(n = nrow(z))) z <- as.data.frame(z) names(z) <- c("Method", "sigma", "INU", "Error") sigma <- as.numeric(levels(z$sigma)) sigmaExprList <- lapply(sigma, function(s) bquote(italic(sigma) == . (s))) sigmaExpr <- as.expression(sigmaExprList) bwplot(Error~Method | sigma, data = z[z[,"INU"] == 0,],scales=list (rot=90), horiz = F, xlab = "Method", ylab = "Relative Error", strip = function(wh...