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Full_Name: Ronnen Levinson Version: 1.5.1 OS: Mac OS 10.1 Submission from: (NULL) (12.232.201.92) The value returned by strptime behaves badly after arithmetic operation and/or combination. > a=strptime("2002-06-01 12:15:01","%Y-%m-%d %H:%M:%S") > a [1] "2002-06-01 12:15:01" > a+0 [1] "1932-04-25 21:46:45" > a+3600 [1] "1932-04-25

.... plot(c(1,2),main=expression(a*"="*b*"="*c)) ...but I don't really understand why the first version works in 1.8.0 and not in 2.0.1. Yours truly, Ronnen. P.S. E-mailed CCs of posted replies appreciated. -- Ronnen Levinson, Ph.D. \/ [1]RML27 at cornell.edu scientist || [2]http://ronnen.com Lawrence Berkeley National Lab /\ fax 425.955.1992 ====================================== Men in colored shirts and seersucker suits, women in slacks and midriff dresses displaying various grades of abdomen, mov...

...ot be reported. If you wish users to follow a specific protocol for reporting bugs (and the RFaq section 9 does not request port-mortem dumps, or list bugs nots to report), specifying this protocol on the R-Bugs page will expedite matters. -- Ronnen -- -- Ronnen Levinson, Ph.D. \/ RML27@cornell.edu scientist || http://ronnen.com Lawrence Berkeley National Lab /\ fax 425.955.1992 ====================================== Arthur Dent hoped and prayed there wasn't an afterlife. Then, realizing the contradiction, he merely hoped there wasn't...

...Hence, I have the following questions: (1) Is pipe() supported in R1.6.1 under WinXP? (2) Can anyone suggest how to get pipe("gawk...") to work again? Thanks, Ronnen. P.S. E-mailed cc:s of replies posted to the list would be appreciated. -- Ronnen Levinson, Ph.D. \/ RML27 at cornell.edu scientist || http://ronnen.com Lawrence Berkeley National Lab /\ fax 425.955.1992 ====================================== Take my word, the mockingbird'll sing the saddest kind o' song he knows things are wrong and he's right -- Johnn...

...d upper prediction intervals to converge as x increases (and the noise decreases), but they seem to remain virtually equidistant. Can anyone explain (a) the behavior that I see, and (b) how to obtain curves that do bound the noise? Thanks, Ronnen. -- Ronnen Levinson, Ph.D. \/ RML27 at cornell.edu scientist || http://ronnen.com Lawrence Berkeley National Lab /\ fax 425.955.1992 ====================================== I took a speed reading course and read 'War and Peace' in twenty minutes. It involves Russia. -- Woody Allen

Hi. Can anyone suggest a simple way to obtain in R a list of vector coordinates of the following form? The code below is Mathematica. In[5]:= Flatten[Table[{i,j,k},{i,3},{j,4},{k,5}], 2] Out[5]= {{1,1,1},{1,1,2},{1,1,3},{1,1,4},{1,1,5},{1,2,1},{1,2,2},{1,2,3},{1 ,2,4},{1,2, 5},{1,3,1},{1,3,2},{1,3,3},{1,3,4},{1,3,5},{1,4,1},{1,4,2},{1,4,3}, {1,4,

...e perhaps a clever solution involving expression()? Thanks, Ronnen. > version _ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 1 minor 5.1 year 2002 month 06 day 17 language R -- Ronnen Levinson, Ph.D. \/ RML27 at cornell.edu scientist || http://ronnen.com Lawrence Berkeley National Lab /\ fax 425.955.1992 ====================================== Should I marry W.? Not if she won't tell me the other letters in her name. -- Woody Allen ==============================...

...2:00:00","%m/%d/%Y %H:%M:%S") x=seq(a,a+3*24*3600,length=3) y=seq(1,4) plot(x,y) shows days of week. Is there a way for me to give plot() and/or matplot() formatting instructions for POSIXt values? Thanks, Ronnen. R1.5.1 on Windows 98 -- Ronnen Levinson, Ph.D. \/ RML27 at cornell.edu scientist || http://ronnen.com Lawrence Berkeley National Lab /\ fax 425.955.1992 ====================================== Men in colored shirts and seersucker suits, women in slacks and midriff dresses displaying various grades of abdomen, moved i...

...deparse/parse * PR# 1880 * Subject: You requested this report From: Berwin Turlach <berwin@maths.uwa.edu.au> Date: Tue, 6 Aug 2002 16:57:54 +0800 --The bug is that we get as far as mkCLOSXP before an error is reported Directory: Macintosh * PR# 1819 * Subject: Date arithmetic fails From: RML27@cornell.edu Date: Sun, 21 Jul 2002 20:26:12 +0200 (MET DST) --In fact, as.POSIXct is off by 66 years. See -- http://developer.apple.com/qa/ops/ops23.html Directory: Misc * PR# 1126 * Subject: R-bug report www page whishlist From: jens.lund@nordea.com Date: Wed, 10 Oct 2001 18:24:29 +0200 (MET...

...lts in 1.5.1 * PR# 1880 * Subject: You requested this report From: Berwin Turlach <berwin@maths.uwa.edu.au> Date: Tue, 6 Aug 2002 16:57:54 +0800 --The bug is that we get as far as mkCLOSXP before an error is reported Directory: Macintosh * PR# 1819 * Subject: Date arithmetic fails From: RML27@cornell.edu Date: Sun, 21 Jul 2002 20:26:12 +0200 (MET DST) --In fact, as.POSIXct is off by 66 years. See -- http://developer.apple.com/qa/ops/ops23.html * PR# 1991 * Subject: Mac Save As... bug From: Tim Cole <tjc1@cam.ac.uk> Date: Sun, 8 Sep 2002 13:47:00 +0100 Directory: Misc * PR# 11...

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Hello. Is there an easy-to-use contour plot function analogous to scatterplot3d that can draw handle a dataset of arbitrary (x,y,z) triplets? That is, say x, y, and z are each measured quanties, and exhibit neither order nor regularity. I looked at the lattice package function "contourplot" but it seems complicated, and it's not clear from the documentation whether it can

Hi. I often wind up with many help windows cluttering my RGui screen when running Windows R 2.0.1. Is there an R instruction to close one or more help windows, or an RGui command to close all help windows? Yours truly, /Ronnen. /P.S. E-mailed CC:s of posted replies appreciated. [[alternative HTML version deleted]]

Hi. Is there an analog to abline() that can be used to plot a polynomial fit? For example, I can draw the straight-line fit fit <- lm(y ~ x) via abline(coef=fit$coef) but I'm not sure how to draw the polynomial fit fit <- lm(y ~ poly(x,2)) I do see the function curve(), but not how to prepare an expr for curve() based on the coefficients returned by the polynomial

Hi. I'm having a little difficulty with R1.5.1. To wit: (1) Can anyone explain the following behavior? > a=strptime("2002-06-01 12:15:01","%Y-%m-%d %H:%M:%S") > a [1] "2002-06-01 12:15:01" > a+0 [1] "1932-04-25 21:46:45" > a+3600 [1] "1932-04-25 22:46:45" (2) Can anyone recommend an introductory R text other than that

Hi. As shown in the simplified example below, I'm having trouble allocating memory for large vectors, even though it would appear that there is more than enough memory available. That is, even with a memory limit of 1500 MB, R 2.6.1 (Win) will allocate memory for a first vector of 285 MB, but not for a second vector of the same size. Forcing garbage collection does not seem