Question:
Hi all!.The R code below,
works great to display 4 plots,
one plot for each numeric column in the iris DF.
And that’s exactly the plots i need.
Problem is,
all 4 plots (one for each column),
have the same default Title at the top:
Histogram of x
…instead of a plot Title at the top, for each specific DF column name:
Histogram of Sepal.Length
Histogram of Sepal.Width,
etc.
Here’s the R code:
f <- function(x){ c( hist(x, freq = FALSE ), lines(density(x)) ) } sapply(iris[1:4], f) # where "f" is the FX f/above!. [/code]
What R-code am I missing?.Help, please!…
SFer —
latest version of R, Rstudio, Ubuntu LINUX 20.04.
Answer:
par(mfrow = c(2,2))
f <- function(data, colname){
hist(data[,colname], freq = FALSE,
main = paste("Histogram of", colname),
xlab = colname)
lines(density(data[,colname]))
}
sapply(names(iris)[1:4], function(x) f(iris, x))
[/code]
If you have better answer, please add a comment about this, thank you!