R help - Nov 2012 - Stripchart colors don't vary after I sort a data frame

# Hi,

# This plot has two colors.

overflow <- read.csv('http://chainsaw.thomaslevine.com/overflow.csv',
stringsAsFactors = F)
png('original.png')
stripchart(overflow$precipi ~ overflow$after.9.am, method='stack', pch 
= 22, bg = overflow$overflow + 1, vertical = T, col = 0)
dev.off()

# I wanted continuous bands of color, so I sorted the data frame.
# But after sorting, it only had one color.

overflow.sorted <- overflow[order(overflow$overflow),]
png('sorted.png')
stripchart(overflow.sorted$precipi ~ overflow.sorted$after.9.am, 
method='stack', pch = 22, bg = overflow.sorted$overflow + 1, vertical = 
T, col = 0)
dev.off()

# What's wrong?

# Here are all of the files.
# http://chainsaw.thomaslevine.com/overflow.csv
# http://chainsaw.thomaslevine.com/original.png
# http://chainsaw.thomaslevine.com/sorted.png

# Thanks
# Tom

On 28.11.2012 18:27, Thomas Levine wrote:
> # Hi,
>
> # This plot has two colors.
>
> overflow <-
read.csv('http://chainsaw.thomaslevine.com/overflow.csv',
> stringsAsFactors = F)
> png('original.png')
> stripchart(overflow$precipi ~ overflow$after.9.am, method='stack',
pch > 22, bg = overflow$overflow + 1, vertical = T, col = 0)
> dev.off()
>
> # I wanted continuous bands of color, so I sorted the data frame.
> # But after sorting, it only had one color.
>
> overflow.sorted <- overflow[order(overflow$overflow),]
> png('sorted.png')
> stripchart(overflow.sorted$precipi ~ overflow.sorted$after.9.am,
> method='stack', pch = 22, bg = overflow.sorted$overflow + 1,
vertical > T, col = 0)
> dev.off()
>
> # What's wrong?

All red are hidden by the black strips, perhaps you want to order it the 
other way round, i.e.:
  overflow.sorted <- overflow[order(rev(overflow$overflow)),]
do not understand the data and you aim well enough after 5 seconds, 
hence it may not be what you aim at...

Uwe Ligges
> # Here are all of the files.
> # http://chainsaw.thomaslevine.com/overflow.csv
> # http://chainsaw.thomaslevine.com/original.png
> # http://chainsaw.thomaslevine.com/sorted.png
>
> # Thanks
> # Tom
>
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