Re: [R] Recovering x/y coordinates from a scatterplot image
You can do this by reading in the image and plotting it, then use the updateusr function from the TeachingDemos package to set the user coordinates to match the image (use locator to find the current values of some points). Then you can just use the locator function to get the coordinates of the points. -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- project.org] On Behalf Of Rob James Sent: Friday, October 15, 2010 2:46 PM To: r-help@r-project.org Subject: [R] Recovering x/y coordinates from a scatterplot image Do I recall correctly that there is an R package that can take an image, and help one estimate the x/y coordinates? I can't find the package, thought it was an R-tool, but would appreciate any leads. Thanks, Rob __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting- guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Recovering x/y coordinates from a scatterplot image
Do I recall correctly that there is an R package that can take an image, and help one estimate the x/y coordinates? I can't find the package, thought it was an R-tool, but would appreciate any leads. Thanks, Rob __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Recovering x/y coordinates from a scatterplot image
On Fri, Oct 15, 2010 at 9:46 PM, Rob James aetiolo...@gmail.com wrote: Do I recall correctly that there is an R package that can take an image, and help one estimate the x/y coordinates? I can't find the package, thought it was an R-tool, but would appreciate any leads. Thanks, I dont know an R package for this, but there are various programs to do it, none of which I can ever remember the name once every six years when I need it. Some searching on the internet has found this one: http://plotdigitizer.sourceforge.net/ but doubtless there are others! Barry __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Recovering x/y coordinates from a scatterplot image
Hi Rob: Are you thinking of the digitize package? HTH, Dennis On Fri, Oct 15, 2010 at 1:46 PM, Rob James aetiolo...@gmail.com wrote: Do I recall correctly that there is an R package that can take an image, and help one estimate the x/y coordinates? I can't find the package, thought it was an R-tool, but would appreciate any leads. Thanks, Rob __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
