From: <MATILDE.TREVISANI_at_econ.units.it>

Date: Tue 16 Jan 2007 - 10:30:14 GMT

R-devel@r-project.org mailing list

https://stat.ethz.ch/mailman/listinfo/r-devel Received on Wed Jan 17 01:11:56 2007

Date: Tue 16 Jan 2007 - 10:30:14 GMT

Dear Author and Maintainer of Hmisc contributed package,
Dear R developers,

i noticed a problem with histbackback routine when i installed the last version of R (2.4.1) (With my previous version, 2.3.1, there was no such a problem)

If, e.g., you simply edit the command

> histbackback(rnorm(20), rnorm(30))

a warning message is printed on the console.

Warning messages:

1: argument 'probability' is not made use of in: hist.default(x, breaks = brks, plot = FALSE, probability = probability)
2: argument 'probability' is not made use of in: hist.default(y, breaks = brks, plot = FALSE, probability = probability)

To fix this problem I simply REPLACE lines 26-27 of histbackback() code:

ll <- hist(x, breaks = brks, plot = FALSE,probability=probability) rr <- hist(y, breaks = brks, plot = FALSE,probability=probability)

with:

ll <- hist(x, breaks = brks, plot = FALSE) rr <- hist(y, breaks = brks, plot = FALSE)

The problem -- i guess -- is generated by the call to hist() which judges "incompatible" setting plot = FALSE and contemporarily specifying the probability argument. In fact, the description of plot argument in hist() function is as follows:

plot logical. If TRUE (default), a histogram is plotted, otherwise a list of breaks and counts is returned. In the latter case, a warning is used if (typically graphical) arguments are specified that only apply to the plot = TRUE case.

Hence, another correction could be to REMOVE probability argument from the list of "(typically graphical)" arguments that only apply to the plot = TRUE case.

Then, it becomes a basic matter of R package.

Hope to be of some help and of course I would be very grateful ro receive any comment about.

Sincerely,

Matilde Trevisani

R-devel@r-project.org mailing list

https://stat.ethz.ch/mailman/listinfo/r-devel Received on Wed Jan 17 01:11:56 2007

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