[R] stacked bar on single-color printing

[Rui Barradas]

Hello,

In base graphics function barplot has arguments angle and density, see 
the help page ?barplot. As an example, with the same data (note that the 
argument density is recycled, 2 values, one per stacked bar times the 
number of unique X vakues):


barplot(Freq ~ Y + X, tbl, density = c(10, 0))


Hope this helps,

Rui Barradas

Às 14:27 de 13/08/20, John escreveu:
> Thanks Rui. That's very close to what I am looking for. You use gray 
> scales for different categories. That would be a great idea. Could we 
> use pattern fill?
> Rui Barradas <ruipbarradas using sapo.pt <mailto:ruipbarradas using sapo.pt>> 於 
> 2020年8月13日 週四 下午6:31寫道：
> 
>     Hello,
> 
>     Without sample data and the code you've tried it's difficult to say but
>     are you looking for something like this?
> 
> 
>     set.seed(2020)
>     df1 <- expand.grid(X = factor(1:5), Y = LETTERS[1:2])
>     df1 <- df1[sample(nrow(df1), 100, TRUE), ]
> 
>     library(ggplot2)
> 
>     tbl <- as.data.frame(table(df1))
> 
>     ggplot(tbl, aes(X, Freq, color = Y, fill = Y)) +
>         geom_col() +
>         scale_color_manual(values = c("black", "black")) +
>         scale_fill_manual(values = c("white", "gray70")) +
>         theme_bw()
> 
> 
>     Hope this helps,
> 
>     Rui Barradas
> 
>     Às 10:05 de 13/08/20, John escreveu:
>      > Hi,
>      >
>      >     I would like to create percentage stacked bar with graphics
>     package
>      > (e.g., ggplot2) and print it in white/black. The regular option
>     is to use
>      > different color on the bar. Is there any way to use different
>     background on
>      > a bar so that we can tell on a black/white printing? For example,
>     let my
>      > green correspond to ***, while my red correspond to ....
>      >
>      >     Thanks,
>      >
>      > J
>      >
>      >       [[alternative HTML version deleted]]
>      >
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