X <- read.table("/home/longa/www/modules/digitize/lab/snowRweb.txt", header=T) attach(X) names(X) y <- X$rate z <- X$trans hist(y,main="Untransformed Rate") qqnorm(y,main="Untransformed Rate"); qqline(y, col = 2) hist(z, main="Transformed Rate") # hist.default(x, breaks, freq = NULL, probability = !freq, # include.lowest = TRUE, right = TRUE, # col = NULL, border = par("fg"), # main = paste("Histogram of" , deparse(substitute(x))), # xlim = range(breaks), ylim = range(counts, 0), # xlab = deparse(substitute(x)), ylab, # axes = TRUE, plot = TRUE, labels = FALSE, ...) qqnorm(z, main="Transformed Rate"); # qqnorm(y, ylim, main = "Normal Q-Q Plot", xlab = "Theoretical Quantiles", # ylab = "Sample Quantiles", plot.it = TRUE, ...) qqline(z, col = 2)