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Just trying to fix this overlapped labeling:
My code:
values=c(164241,179670)
labels=c("Private", "Public")
colors=c("#cccccc", "#aaaaaa")
categoriesName="Access"
percent_str <- paste(round(graph$values / sum(graph$values) * 100,1), "%", sep="")
values <- data.frame(val = graph$values, Type = graph$labels, percent=percent_str )
pie <- ggplot(values, aes(x = "", y = val, fill = Type)) + geom_bar(width = 1) +
geom_text(aes(y = **val + 1**, **hjust=0.5**, **vjust=-0.5**, label = percent), colour="#333333", face="bold", size=10) +
coord_polar(theta = "y") + ylab(NULL) + xlab(NULL) +
scale_fill_manual(values = graph$colors) + labs(fill = graph$categoriesName) +
opts( title = graph$title,
axis.text.x = NULL,
plot.margin = unit(c(0,0,0,0), "lines"),
plot.title = theme_text(face="bold", size=14),
panel.background = theme_rect(fill = "white", colour = NA) )
print(pie)
Tried messing with the values marked with asterisks (** **) but haven't got anywhere. Any help appreciated.
203
Use pie() method to plot a pie chart with slices, colors, and slices data points as a label. Make a list of labels (those are overlapped using autopct). Use legend() method to avoid overlapping of labels and autopct. To display the figure, use show() method.
Labels may overlap if the pie chart contains too many slices. One solution is to display the labels outside the pie chart, which may create more room for longer data labels. If you find that your labels still overlap, you can create more space for them by enabling 3D.
here is an example:
pie <- ggplot(values, aes(x = "", y = val, fill = Type)) +
geom_bar(width = 1) +
geom_text(aes(y = val/2 + c(0, cumsum(val)[-length(val)]), label = percent), size=10)
pie + coord_polar(theta = "y")
Perhaps this will help you understand how it work:
pie + coord_polar(theta = "y") +
geom_text(aes(y = seq(1, sum(values$val), length = 10), label = letters[1:10]))
126
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