R help - May 2010 - problem with making multiple plots (geom_pointrange) in a loop (ggplot2)

Hello:

I am using R 2.10.1  I am trying to make multiple scatter plots with ggplot2,
using a for loop to select
only certain entries in a dataframe.  Here is my code:

for(i in 1:length(ganges_subbasin[,1] )){



    subbasin_select <- as.character(ganges_subbasin[i, 2])

    #print(subbasin_select)

    subbasin_select <- as.character(ganges_subbasin[i, 2])

    p <- ggplot(ganges_subbasin_a2pre_sort ,aes(x = Month, y = med, ymin
= min, ymax = max, subset = CATCHMENT_ == subbasin_select)) +
ylab("Precipitation (mm)\n") + opts(title = paste("Projected
Precipitation 2030 - 2049 (Sub-Basin ", subbasin_select, ")\n",
sep "")) + scale_colour_grey()


    p +  geom_pointrange(linetype = 2, colour = "navyblue") +
opts(axis.text.x = theme_text(colour = "black")) + opts(axis.text.y
theme_text(colour = "black"))  +  opts(axis.ticks theme_segment(colour
= "white"))


    ggsave(paste(subbasin_select,"2100.jpeg", sep = " "))



}

dev.off()

Unfortunately, I get this error:

"Saving 6.95" x 6.94" image
Error in grDevices::jpeg(..., width = width, height = height, res dpi,  :
  unable to start device
In addition: Warning messages:
1: In grDevices::jpeg(..., width = width, height = height, res dpi,  :
  Unable to allocate bitmap
2: In grDevices::jpeg(..., width = width, height = height, res dpi,  :
  opening device failed
>
"

Any suggestions?

Thank you.

Michael


      
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Hi,

On 16 May 2010 03:31, michael westphal <mi_westphal at yahoo.com> wrote:
[ snipped ]
> Any suggestions?
>
i'd suggest you

- read the posting guide
- upgrade your R to the latest version
- don't post to two mailing lists
- make your example minimal, self-contained, reproducible
- show the result of sessionInfo()

HTH,

baptiste
>
> ? ? ? ?[[alternative HTML version deleted]]
>
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