[R] Creating plots for all variables in a data frame and printing them with the variable name in the main title

[Henrique Dallazuanna]

Try:

x <- data.frame(A=rnorm(100), B=rnorm(100), C=runif(100))
sapply(names(x), function(i)hist(x[,i], main = i))

On 17/03/2008, Uli Kleinwechter <ulikleinwechter at yahoo.com.mx> wrote:
> Dear all,
>
>  I'm just trying to create plots for all variables in a dataframe (named
>  "x") using the following:
>
>  png()
>  apply(x,2,hist)
>
>  Just as intended, it produces one plot for each variable. Unfortunately,
>  the main title of each graph is "Histogram of newX[,i]" instead of
>  "Histogram of name of variable". This makes it impossible to assign the
>  graphs to the variables. Is there a way to change this and to make R use
>  the correct variable names in the title of the plot?
>
>  Thank you very much,
>
>  Uli
>
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>


-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O