[R] Help with R

Bert Gunter bgunter.4567 at gmail.com
Sat Nov 19 20:10:33 CET 2016

If you haven't already done so, I strongly recommend that you stop
doing what you're doing until you first spend some time with an R
tutorial or two. You can find some good suggestions here:


rseek.org is also a good resource for R queries; "plot maps" brought
up lots of relevant hits.

-- Bert

Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )

On Sat, Nov 19, 2016 at 10:32 AM, Jackson Hooten <jlhooten at eckerd.edu> wrote:
> Hello R Help,
> I am fairly new to R and have been scouring the internet trying to find
> useful tips, tricks and advice with how to solve my problems with R. I
> finally was able to find you guys, and am now asking for your help. I have
> a number of different questions regarding R. My most pressing question is,
> how does one get a map of a very specific area into R? I've been following
> a tutorial that one of my teachers sent me and been following his code.
> However, every time I input this code I get a warning message:
> My teacher's code:
>> plot(map, col="dimgray", border=F, add=T)
> The Error code I get every time I input the above code:
>> Error in plot.window(...) : need finite 'ylim' values
> In addition: Warning messages:
> 1: In xy.coords(x, y, xlabel, ylabel, log) : NAs introduced by coercion
> 2: In min(x) : no non-missing arguments to min; returning Inf
> 3: In max(x) : no non-missing arguments to max; returning -Inf
> 4: In plot.window(...) : "border" is not a graphical parameter
> 5: In plot.window(...) : "add" is not a graphical parameter
> So, what I think I figured out was that I didn't possess the "map" that my
> teacher had in his R program. So I went to try and figure out how to get my
> own map into my R session. I found this line of code to try and input a
> good Google Earth map I found that I need for my study. But, alas, this
> code didn't work either and I got more Error codes.
> The code I used:
>> img <-readPNG(system.file("img", "Seal_Island_Map.png", package="png"))
> The Error code I get every time I input the above code:
>> Error in readPNG(system.file("img", "Seal_Island_Map.png",
> package="png")) : unable to open
> For the life of me, I have not been able to find anything anywhere that can
> help me solve these problems. What am I doing wrong? Can you all help?
> Thank you and I hope to talk to you all soon.
> Sincerely,
> Jackson
>         [[alternative HTML version deleted]]
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