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

From: Uli Kleinwechter <ulikleinwechter_at_yahoo.com.mx>
Date: Mon, 17 Mar 2008 11:47:28 +0100


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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