[R] as.Date to as.POSIXct

2012-12-25 Thread Antonio Rodriges
Hello, I have converted some UNIX time stamps with as.Date as follows dates_unix - seq( as.Date(convertTimeToString(timeStart)), length = length(data), by=1 mon) and now I would like to convert dates_unix from type Date

Re: [R] New to R, Curious about Project Idea

2012-01-12 Thread Antonio Rodriges
. With the completed analysis, I would like to be able to use an open source web mapping platform to display it for the 'company' I am performing this for as part of my project. Any insight you could provide me would be greatly, greatly appreciated. Thanks, Phil Kind regards, Antonio Rodriges

Re: [R] Restricting R session

2012-01-12 Thread Antonio Rodriges
like ssh, use ulimit to limit resources, and if you have to deal with potentially malicious users, run in a chroot jail. Thomas, seems you are right - the best possible way to accomplish our goals is to use operating system facilities. Kind regards, Antonio Rodriges

Re: [R] Restricting R session

2012-01-12 Thread Antonio Rodriges
will satisfy only 6 of them. The VM will eat at least 256 MB as a minimum requirement to run an OS. Consider also time to start up a VM, managing lots of VMs for each user separately which will lie somewhere on a HDD inactively taking also 1GB each (approx) Kind regards, Antonio Rodriges

Re: [R] Restricting R session

2012-01-11 Thread Antonio Rodriges
limits will cover all sessions or each session separately. -- Kind regards, Antonio Rodriges __ 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

[R] Restricting R session

2012-01-10 Thread Antonio Rodriges
of? -- Kind regards, Antonio Rodriges __ 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

Re: [R] GIS operations

2011-12-23 Thread Antonio Rodriges
Hello, Maybe this will help: There is rgeos package with gContains, gCovers, etc. It is a full implementation of Java Topology Suite http://cran.r-project.org/web/packages/rgeos/rgeos.pdf -- Kind regards, Antonio Rodriges __ R-help@r-project.org

[R] trends for georeferenced spatial global grid

2011-12-20 Thread Antonio Rodriges
data point. Is there a better practice for this task to express it in a line or two or a dedicated package? Thank you -- Kind regards, Antonio Rodriges __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

[R] GIS operations

2011-12-20 Thread Antonio Rodriges
Hello, Is there a way to find points in SpatialPoints which lie inside a given Polygon? -- Kind regards, Antonio Rodriges __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R

[R] Graphics in vector format

2011-11-22 Thread Antonio Rodriges
Hello, Is there a way to save plots in vector format like SVG or smth else? __ 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

[R] Tutorial on 'fields' package

2011-10-24 Thread Antonio Rodriges
Dear all, Does anyone know where can I find a tutorial on using 'fields' package and related packages dealing with regular grids? Thank you -- Kind regards, Antonio Rodriges __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo

[R] Running R in a sandbox

2011-08-03 Thread Antonio Rodriges
tools, etc. Thank you. -- Kind regards, Antonio Rodriges __ 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

[R] Isolines in vector format

2011-07-03 Thread Antonio Rodriges
Dear R users, I am working with netcdf data of NCEP/NCAR Climate Reanalysis. R does have capability to draw isolines using contour. However, I need not to draw but to export contours in any vector format. Is it possible? Thank you. __