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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