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...quot;2006-12-31",format="%Y-%m-%d") dates <- seq(startdate,enddate,by="month") daynr <- as.numeric(julian(dates,origin=dates[1])) yvar <- sin(daynr*2*pi/365) plot(yvar~dates,type='l') Cheers, Henrik -- Henrik Andersson Danish Meteorological Institute Lyngbyvej 100 2100 Copenhagen ? Denmark Tel: +45 39157215 Email: han at dmi.dk

Dear all, I'm trying to plot the degree symbol by itself between two square brackets. I just want to have "K [?]". So far I got to: expression(K ~ group("[",1*degree,"]")) or expression(K ~ group("[",1^o,"]")) But it won't work without a number or letter. Any suggestions? Thanks, andre

Is there any generic function that gets the "home" directory? This should return /home/<user> in Linux and x:/Documents and Settings/<user> (or whatever) in Windows XP. Another (unrelated) question: what is the _simplest_ way to read and write R variables to/from files such that they are stored in a human-readable but R-like form? For example, if (say), x is a vector