Hi,
I have a dataframe which I need to plot in ggplot2 it looks like this :-
head(nodelta_firstexon)
Value Type Histone
1 0.06 high H3K27ac
2 0.12 low H3K27ac
4 0.04 high H3K27me3
5 0.16 low H3K27me3
7 0.02 high H3K36me3
8 0.13 low H3K36me3
I have another data frame with p-v alues that looks like this :-
head(mypval_df)
Histone count pvalues
1 H3K9ac 0 0.000
2 H3K27me3 0 0.000
3 H3K36me3 1000 1.000
4 H3K4me3 583 0.583
5 H3K4me1 882 0.882
6 H3K27ac 970 0.970
This is how I plot the first dataframe using ggplot
p <-
qplot(factor(Value),data=nodelta_firstexon,geom="bar",fill=factor(Type))+facet_wrap(~Histone)
Next I need to annotate p-values (p <= mypval_df$pvalues) to each facet using
the mypval_df.
I can't seem to find an example on how to do it. Would appreciate any help.
Regards
Saad
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