how can I put two bar charts to one graph?

Question

I use two variables from a dataset: I got the graph for one of them:

barchart(data_derm$PP_SD_ARBVLZ=="1")

I want to put the graph for this variable data_derm$PP_SD_ARBTLZ=="1" next to the other graph to one graph

thanks a lot for any help!

[How to make a great R reproducible example?](http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example) — zero323, Nov 16 '13 at 16:34

score 0 · Answer 1 · answered Nov 16 '13 at 16:46

Without a reproducible example, this question will be difficult to answer definitively. One possibility is to use something like ?layout:

layout(matrix(1:2, nrow=1))
barchart(data_derm$PP_SD_ARBVLZ=="1")
barchart(data_derm$PP_SD_ARBTLZ=="1")

See the Quick-R website for more.

score 0 · Answer 2 · answered Nov 16 '13 at 16:52

So you want two graphs in one figure if I am understanding you correctly. If you want the commands from the base package. You can use:

> data(mtcars)
# par(mfrow=c(row, col))  and "row" is the number of plots you put in a row and same for "col"
> par(mfrow=c(1,2))
> barplot(mtcars$mpg)
> boxplot(mtcars$mpg ~ as.factor(mtcars$cyl))

You can use other functions if you don't mind using with GGPLOT2.. etc. enter image description here

how can I put two bar charts to one graph?

2 Answers2