search for: kittler

Displaying 8 results from an estimated 8 matches for "kittler".

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2004 Jun 14
4
Coercing a dataframe column to datetime
...20" "1992-02-27 22:29:56" > > ds[,2] <- q Error in "[<-"(`*tmp*`, , 2, value = q) : number of items to replace is not a multiple of replacement length > > length(q) [1] 9 ................................................................. --Rich Richard Kittler AMD TDG 408-749-4099
2005 Apr 23
2
How to override coerion error in 'scan'
..., : "scan" expected a real, got "03/15/200523:56:03" Is there a way to override this and just have it convert those values to NA? The dataset is large so I would prefer not to have to import the columns as character and convert them to numeric afterward. --Rich Richard Kittler AMD TDG 408-749-4099
2004 Jun 08
2
Is there an R-version of rayplot
I need to make plots similar to those produced by the s-plus rayplot function but can't seem to find it in R. These 'vector maps' plot a ray or vector at each specified location. Is there something similar in R ? --Rich Richard Kittler AMD TDG 408-749-4099
2004 Jun 10
2
Lattice::qqmath -- groups option question
Does the 'groups' option on qqmath just color the points differently in the main distribution or does it actually overlay separate quantile plots for each subset? I would like to be able to do the latter. --Rich Richard Kittler AMD TDG 408-749-4099
2005 Jun 03
2
Lattice xyplot -- footnote font size / mtext
Is there a way of controlling the font size and alignment of a footnote in an xyplot, or alternatively of using 'mtext' to place a footnote at the bottom of a graph? --Rich Richard Kittler Advanced Micro Devices, Inc. Sunnyvale, CA
2004 May 07
1
Lattice xyplot - problem trying to produce multiple output files with a 'for' loop
...ansparent" ) ds1 <- subset(ds, TR == byvar, select=c(CTY, HWY, CO)) xyplot( ds1$CTY ~ ds1$HWY, groups=ds1$CO, auto.key=list(space="right"), ylab="CTY", xlab="HWY") dev.off() } ......................................................... --Rich Richard Kittler AMD TDG 408-749-4099
2008 May 08
1
R strucchange question -- robust regression
Is it possible to use some form of robust regression with the breakpoints routine so that it is less sensitive to outliers? --Rich Richard Kittler Advanced Micro Devices, Inc. Sunnyvale, CA
2006 Nov 16
0
Job Opportunity - AMD Sunnyvale
...or Solaris * Experience with Oracle or MySQL is a plus. * Excellent verbal and written communication skills. * Ability to work with a multi-disciplinary team. To apply, please email a resume or C.V. to Hafeez Khan (hafeez.khan@amd.com). Please do **not** reply directly or cc this list. Richard Kittler Advanced Micro Devices, Inc. Sunnyvale, CA [[alternative HTML version deleted]]