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Hi list I loaded the content of a file dureetasks.txt to variable a. This file contains an interger per line. when I print a vector, it displays correctly. however, when I try to print the histogram, I get this error message > a=read.table("dureetasks.txt") > hist(a) Error in hist.default(a) : 'x' must be numeric Can you help please? regards -- PhD candidate in

There is a R function to calculate weighted mean : weighted.mean() under stats package. Is there any direct R function for calculating weighted variance as well? [[alternative HTML version deleted]]

Dear List, A student in the Department where I work would like to produce a graphic similar to this one: http://image.guardian.co.uk/sys-files/Guardian/documents/2009/09/16/Public_spending_160909.pdf Does anyone know if the figure in the pdf can be generated in a specific software application for example? Any suggestions would be most gratefully received by the student concerned. Many thanks,

This post asks members of the R community, users and developers, to comment on issues related to the GNU Public License and R community policies more generally. The GPL says very little about protecting the the rights of original contributors by not disseminating misleading information about them. Indeed, for pragmatic reasons it effectively assumes that original authors have no rights regarding

...~%~%~%~%~%~%~% >  Dr. Gavin Simpson            [t] +44 (0)20 7679 0522 >  ECRC, UCL Geography,          [f] +44 (0)20 7679 0565 >  Pearson Building,            [e] gavin.simpsonATNOSPAMucl.ac.uk >  Gower Street, London          [w] http://www.ucl.ac.uk/~ucfagls/<http://www.ucl.ac.uk/%7Eucfagls/> >  UK. WC1E 6BT.                [w] http://www.freshwaters.org.uk > %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% > >     [[alternative HTML version deleted]] ------------------------------ Message: 21 Date: Wed, 27 May 2009 07:54:55 -0400 From: "L...