read.pnm question

In R-beta (Masked Marvel), when I do the example from the read.pnm help
file, this is what happens:

x <- read.pnm(system.file("pictures/logo.pgm",package="pixmpap")[1])
Warning message:
In rep(cellres, length=2): x is NULL so the result will be NULL

In R-2.15.3, it's all right.

Thanks,
Erin


On Fri, Mar 22, 2013 at 2:13 AM, Michael Weylandt <
michael.weylandt at gmail.com> wrote:

On Mar 22, 2013, at 4:04, Erin Hodgess <erinm.hodgess at gmail.com>

wrote:

Dear R People:

I am trying to replicate a cool example that I saw on the R-bloggers

some

time ago by kafka399.

Here are the lines tI think may be  causing the trouble:

gray_file <- read.pnm(path)

pos[i,] <- c(gray_file at grey)


Hi Erin,

This is basically impossible to debug as is -- though I do note you

spell

that color between white and black inconsistently; could you please

put

some effort into making a true reproducible example or, at the very

least,

linking to the project you are attempting to replicate?

Michael

http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example

The warning error that I get is
"In rep(cellres, length=2): x is NULL so the result will be NULL

Any suggestions would be much appreciated.

Thanks,
Sincerely,
Erin





--
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com

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