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How to plot rows of a data frame as lines in R?
To plot row of a data frame as lines, we can use matplot function but we would need to transpose the data frame because transposed values of the data frame will be read as columns and the matplot function plot the columns not rows. For example, if we have a data frame called df then the plot of rows as lines can be created by using the command −
matplot(t(df),type="l")
Example1
Consider the below data frame −
> x1<-rpois(5,2) > x2<-rpois(5,5) > x3<-rpois(5,3) > df1<-data.frame(x1,x2,x3) > df1
Output
x1 x2 x3 1 0 9 5 2 3 4 2 3 0 2 1 4 3 7 3 5 5 10 3
Creating plot of rows in df1 as lines −
> matplot(t(df1),type="l")
Output
Example2
> y1<-rnorm(3) > y2<-rnorm(3) > y3<-rnorm(3) > df2<-data.frame(y1,y2,y3) > df2
Output
y1 y2 y3 1 -0.9992381 -1.3802480 -0.7228096 2 1.3677936 0.1813761 1.3711921 3 0.8905198 -1.0607813 0.3895616 1 -0.9992381 -1.3802480 -0.7228096 2 1.3677936 0.1813761 1.3711921 3 0.8905198 -1.0607813 0.3895616
Creating plot of rows in df2 as lines −
> matplot(t(df2),type="l")
Output
Updated on: 05-Mar-2021
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