search for: kat215

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2009 Jun 22
5
Convert "ragged" list to matrix
...; or something similar: [,1] [,2] [,3] [,4] [1,] "a" "b" "c" "NA" [2,] "d" "e" "NA" "NA" [3,] "f" "g" "h" "i" Any suggestions? Thanks! Ken kat215@psu.edu [[alternative HTML version deleted]]
2009 Apr 23
1
Parenthesis around date/time using chron?
...ate = orig + floor(dat)-2; #I can easily recreate the date.time vector without the parenthesis (as characters though): paste(date, time) But, I don't see why the values in the ORIGINAL date.time vector have parenthesis around them? Is there as specific reason? Thanks! ken kat215@psu.edu [[alternative HTML version deleted]]
2009 May 31
1
using chron vector with boxplot
...ervals between measurements dates! boxplot(data~date, range=0) # tried using formula, gives error: Error in model.frame.default(formula = data ~ date) : invalid type (list) for variable 'data' Not sure what to try next. Any suggestions? Thanks, ken kat215@psu.edu [[alternative HTML version deleted]]
2008 Feb 20
1
Deleting multiple rows based on a variable
...trying to remove observations that have variable Identity = 1, 2, 3: Data2<-subset(Data1, Identity!=c(1,2,3)) This does not work. It works if I do it one at a time, but is very time consuming. Is there a way to remove all desired observations at once? Thanks! Kenneth Takagi kat215@psu.edu [[alternative HTML version deleted]]
2008 Feb 22
1
How to Include greek symbol in axis label?
...")"))) This displays nicely, but in the default font. I would like to use font=6 (which is the font of the other labels, title, etc.). Is there an way to display the y-label in font=6 and still include the greek character? Is there an easier way to do this? Thanks for your help! Ken kat215@psu.edu [[alternative HTML version deleted]]