similar to: R-beta: kill R Graphics window->crash R

Displaying 20 results from an estimated 10000 matches similar to: "R-beta: kill R Graphics window->crash R"

1997 Sep 25
2
R-beta: return()
I have a question on the use of return(). (Nothing on it in the docs I have) The test code below gives the error: Error: Object "x" not found when I do: thingy2(). How should it be fixed? Thanks very much for any help! (My original solution to this sort of problem was to use global variables x<<-... y<<-...) Bill Simpson ----------------------------- thingy<-function(k)
1998 Jan 07
1
R-beta: image
Questions on image: 1) How can I put labels on the x and y axes? 2) How to tell it to use e.g. 32 grey levels (not some colour map)? 3) How to know what the legend is (i.e. each grey level = what z value)? Thanks very much for any help. BTW I was wondering if persp was on the To Do list. That would be great! Bill Simpson
1998 Jun 03
4
lty
I find, viewing the output with ghostview, that lty="2","3", or "4" gives the same dashed line. So basically you have choice of solid ("1") or dashed ("2","3","4"). If this is not implemented yet, maybe the docs should reflect it? Hmm now I tried plotting with both lty="2" and lty="3" for two separate
1998 Apr 03
1
R-beta: default paper size
After some paper clipping problems I checked options() and saw that the default paper size was a4; I need US Letter. So as per instructions I uncommented the R_PAPERSIZE line in config.site, R_PAPERSIZE=letter Restarting R, everything is still the same though. I guess I have to reinstall? That seems awkward. Is there a way a prompt ("a4 or letter paper?") can be inserted in the
1998 Feb 26
3
R-beta: quantile
I do: x<-rnorm(1000) quantile(x,c(.025,.975)) 2% 98% -1.844753 1.931762 Since I want to find a 95% confidence interval, I take the .025 and .975 quantiles. HOWEVER R says I have the 2% (not 2.5%) and 98% (not 97.5%) points. Is it just rounding the printed 2% and 98%, or is it REALLY finding .02 and .98 points instead of .025 and .975? Thanks for any help. Bill Simpson
1998 Feb 26
3
R-beta: quantile
I do: x<-rnorm(1000) quantile(x,c(.025,.975)) 2% 98% -1.844753 1.931762 Since I want to find a 95% confidence interval, I take the .025 and .975 quantiles. HOWEVER R says I have the 2% (not 2.5%) and 98% (not 97.5%) points. Is it just rounding the printed 2% and 98%, or is it REALLY finding .02 and .98 points instead of .025 and .975? Thanks for any help. Bill Simpson
1998 Mar 25
1
R-beta: qpois help
version .62: --------------------------------------------- > ?qpois The Poisson Distribution dpois(x, lambda) ppois(q, lambda) qpois(p, lambda) rpois(n, lambda) Arguments: x: vector of (positive) quantiles. p: vector of probabilities. n: number of random values to return. lambda: vector of positive means.
1998 Jul 03
1
R-beta: histogram
Can someone please tell me to make a density histogram? hist makes one with count or relative frequency on the y-axis. I want the density, which is (rel freq)/(bin width) In the help I see: intensities: values f^(x[i]), as estimated density values. If `all(diff(breaks) == 1)', they are the relative frequencies `counts/n' and in general satisfy
1998 Jul 03
1
R-beta: sum of squares and NAs
This surprised me. Is it the way it is supposed to be? > x<-c(1,2,3,4,5) > y<-c(1.2,1.3,1.4,1.5,NA) > x-y [1] -0.2 0.7 1.6 2.5 NA > (x-y)^2 [1] 0.04 0.49 2.56 6.25 NaN >>>so NA^2 = NaN? Why not still NA? > sum((x-y)^2) [1] NaN >>>yes that is reasonable So if you ever have a data set with missing observations (NAs), you can't do any nlm() least
1998 Jul 13
1
R-beta: accessing SEs from lm object
If I do fit<-lm(y~x) Is it possible to access the SE of the slope? (Analogous to getting the slope like this: fit$coef[2]) If not, it would be handy. (I want SE of 1/slope, and an approx way is fit$se[2]/(fit$coef[2]^2)) Thanks for any help. Bill Simpson -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read
1998 Mar 11
1
R-beta: ms, nls, etc?
I tried to ?ms, ?nls and apparently these aren't implemented on R yet. However I seem to remember postings on this list having to do with fitting nonlinear models (no I don't mean GLM type fits, I have a REAL nonlinear model: y=ax^b + c). So please tell me if it is possible to fit nonlinear models in R (by least squares or ML). Thanks! Bill Simpson
1998 Mar 06
1
R-beta: image saved ps file
I include the argument pty="s" to image, but still when I make an image by the method > postscript("rstuff/test.ps") > tauseq<-seq(0,1,.5) > cif2d.image(x,,y,tauseq) > dev.off() the image plot created is NOT square. I thought pty="s" would make it square. Generally it would be nice if the image saved to disk were like the one we see while in R
1998 Sep 03
2
ppoints
When I look at ppoints I see: ppoints<-function (x) { n <- length(x) if (n == 1) n <- x (1:n - 0.5)/n } However Venables & Ripley (2nd ed, p 165) say ppoints() should return (i-1/2)/n for n>=11; (i-3/8)/(n+1/4) for n<=10. The version below should work as described: ppoints<-function (x) { n <- length(x) if (n <= 10) (1:n - 0.375)/(n + 0.25) else (1:n - 0.5)/n
1998 Mar 12
2
R-beta: nonlinear fitting
Thanks very much Douglas for the pointer to nlm. Maybe the "Notes on R" maintainer can add at least a mention of nlm in the section on nonlinear fitting? I never did nonlinear fitting in S-Plus before, so I have nothing to unlearn, but I was hoping someone could show me how to do a least squares fit with nlm. example: x<-c(1,2,3,4,5,6) y<-.3*x^-.6 +.2 y<-y+rnorm(6,0,.01)
1998 Mar 12
2
R-beta: nonlinear fitting
Thanks very much Douglas for the pointer to nlm. Maybe the "Notes on R" maintainer can add at least a mention of nlm in the section on nonlinear fitting? I never did nonlinear fitting in S-Plus before, so I have nothing to unlearn, but I was hoping someone could show me how to do a least squares fit with nlm. example: x<-c(1,2,3,4,5,6) y<-.3*x^-.6 +.2 y<-y+rnorm(6,0,.01)
1998 Apr 13
1
R-beta: command line editing?
I would love to have bash-like command line editing in R. (Press up cursor and see previous command line; use left cursor to go back then edit it) Appendix B in Rnotes describes Splus I guess, not R. Starting R by R -e doesn't let any of the following described actions (B.3) work. I don't use vi or EMACs (I use Nedit), so I would prefer bash-like interface anyway. (I don't think I
1998 Jun 25
1
R-beta: re-appearing workspace
I am using R Version 0.62.0 Unstable-snapshot (April 26, 1998) on Linux. I use the AfterStep window manager. Problem. Once upon a time, a workspace was saved. But at the end of this session, on quitting R I say "no", don't save workspace. On starting up, there are all the old objects again! I take it that the workspace is saved as ~/.RData. So is the only solution to manually rm
1998 Feb 27
1
R-beta: is there a way to get rid of loop?
Here is a programming question. The code I am using is quite slow and I was wondering if there is a way to get rid of the for loop. I am dealing with "interaction" in 2x2 table, and am using Edwards's G_I (Likelihood, p. 194). I label the cells in the table as follows stim response "y" "n" total -------------------------------- y hit miss nsignal
1998 Jan 12
2
R-beta: first view, then save plot or image?
I know how to first set postscript output, then execute plot or image command to create a postscript file of a plot or image. I was wondering if it is possible to first create the plot or image on screen so it can be viewed, THEN save it to file? Without doing plot() or image() again? (I ask because I have a complicated image computation that takes about 1-2 hrs to complete. I would like to
1997 Nov 20
3
R-beta: edit figs with xfig?
Question for R users under unix: Do you ever edit figs created by R using xfig or some other program? I tried to edit a figure with xfig (a program which I find quite horrible by the way) and it said it couldn't read it in. I guess xfig has no capability of reading postscript files? Can anyone tell me how to do it, or perhaps suggest another freeware structured drawing program for use in