Question

I used the following code to draw a scatterplot. How to increase the font size and change colour of x-axis and y-axis label?

data=read.csv("data.csv") 
plot(data$column1,data$column2,xlab="x axis", ylab="y axis",  pch=19)

Answer 1

To track down the correct parameters you need to go first to ?plot.default, which refers you to ?par and ?axis:

plot(1, 1 ,xlab="x axis", ylab="y axis",  pch=19,
           col.lab="red", cex.lab=1.5,    #  for the xlab and ylab
           col="green")                   #  for the points