Hi:
This isn't hard to do with ggplot2. Here's a toy example:
d <- data.frame(gp = LETTERS[1:4], frq = c(10, 25, 30, 20))
library(ggplot2)
# The fill aesthetic colors the bars, the colour aesthetic does the same for
the borders.
# (1) Same color for both, use alpha transparency:
ggplot(d, aes(x = gp, y = frq)) +
geom_bar(fill = 'blue', colour = 'blue', alpha = 0.2)
# (2) Use related colors (and throw in a white background):
ggplot(d, aes(x = gp, y = frq)) +
geom_bar(fill = 'blue', colour = 'navyblue', alpha = 0.2) + theme_bw()
# (3) Use different colors:
ggplot(d, aes(x = gp, y = frq)) +
geom_bar(fill = 'lavender', colour = 'navyblue') + theme_bw()
# (4) Map fill and border colors to values of gp:
ggplot(d, aes(x = gp, y = frq)) +
geom_bar(aes(fill = gp, colour = gp), alpha = 0.3) + theme_bw()
# (4a) To get rid of the crossbar in the legend, add
last_plot() + scale_colour_discrete(legend = FALSE)
HTH,
Dennis
PS: I would have preferred to send this to the OP rather than the
respondent, but he didn't cc the original message, so...
On Sun, Feb 20, 2011 at 3:36 PM, Jannis <bt_jan...@yahoo.de> wrote:
> The easiest solution may be using par(new=TRUE) and to overlay a coloured
> barplot with a separate shaded barplot....
>
>
> HTH
> Jannis
> On 02/19/2011 10:58 PM, Markus Loecher wrote:
>
>> Dear all,
>> might there be a modified barplot function out there which allows the user
>> to specify a fill color for the bars and independent parameters for the
>> overlaid shading lines ?
>> Currently, when I specify density and col, the fill color for the bars is
>> white.
>>
>> Thanks!
>>
>> Markus
>>
>> [[alternative HTML version deleted]]
>>
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>>
>>
> ______________________________________________
> R-help@r-project.org mailing list
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> PLEASE do read the posting guide
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>
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