I have a data frame, df, that looks this this:
a b c d e f g h i j k l m
1a 4 4 3 4 3 4 3 4.0 4.0 4 4 4 3.9
1b 9 9 9 9 9 9 9 8.1 8.8 9 9 9 8.5
1c 8 8 9 8 9 8 8 8.0 9.0 8 9 8 8.3
1d 8 8 8 9 8 9 8 8.0 8.0 8 8 8 8.5
1e 4 4 4 4 4 4 4 4.0 4.0 4 4 4 4.0
2a 3 4 3 4 3 4 3 4.0 3.0 4 3 4 3.8
2b 8 8 8 8 8 8 8 8.0 8.0 8 8 8 8.0
2c 8 8 8 8 8 8 8 9.0 8.0 9 8 8 8.3
2d 8 9 8 8 8 9 8 9.0 8.0 9 8 9 8.0
2e 4 3 4 3 4 4 4 4.0 4.0 4 4 3 3.9
I am using the plotrix and devtools packages, and have already installed them both, and the barp2 function like this:
# install the packages and load the barp2 function
install.packages('plotrix')
install.packages('devtools')
install_url("http://cran.r-project.org/src/contrib/Archive/plotrix/plotrix_3.5-2.tar.gz")
source_gist("https://gist.github.com/tleja/8592929")
# load the packages
library(plotrix)
library(devtools)
The modified code (barp2) that I'm using is available here.
I am trying to plot the data in the data frame, provided above, like this:
par(mar = c(5, 4, 4, 6))
barp2(df, pch=t(c(0:4, 7:14)), names.arg=rownames(df), legend.lab=colnames(df),
ylab="y label", main="main")
I am using the reference chart, to fill the bars of the plot.
I want the rownames of df to be the x axis labels, and the colnames of df to be in a legend.
However, I keep getting this error:
Error in axis(1, at = x, labels = names.arg, cex.axis = cex.axis) :
'at' and 'labels' lengths differ, 13 != 10
I understand that this is because rownames(df) has a length of 10 and colnames(df) has a length of 13 (which are clearly not equal), but I am not sure how to fix this problem, so that the data in the data frame is displayed in a barplot.
Or if I swap the columns and rows around using t(df), like this:
barp2(t(df), pch=t(c(0:4, 7:11)), names.arg=rownames(df), legend.lab=colnames(df),
ylab="y label", main="main")
I get this error:
Error in seq.default(x1[frect] + xinc[frect]/2, x2[frect] - xinc[frect]/2, :
wrong sign in 'by' argument
I have no idea what this error means or why I get it.
Sorry I can't provide an image of what it should look like, but hopefully you get the basic idea of it.
Any help would be much appreciated.
