[R] Horizontal Boxplot

[Dragón]

  Hello all.

  I'm just a beginner trying to draw a boxplot and I don't know why every time
I try to make it horizontal I receive the error message "parameter
'horizontal' couldn't be set in high-level plot() function". Can anybody give
me an advice?
  Here is the code:

opar <- par(ask = interactive() && (.Device == "X11" || .Device == "windows"))
# For source

#pictex(file = "graf.tex", bg = "white", fg = "black", width = 4, height = 4,
debug = FALSE)
par(bg="cornsilk")
n <- 2
g <- c(452, 395, 317, 254, 202)
x <- c(590, 497, 414, 326, 276)

boxplot(g,x,horizontal=T)
title(main="Gross weekly earnings", ylab="Pounds", font.main=4, font.lab=1)
#dev.off()



  Thanks

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