similar to: Slow update(insert) on Data.frame

Hi everyone, I am desperately looking for a method to interpolate strings within an SQL statement as follows: I get a lot of rows out of a database (in my example POSITION_to_ZIPCODE Database with holds records for German ZIP Code <--> Gauss-Krueger Coordinate System ) and want this to be selected and computed individually row by row as follows: library(RODBC) channel <-

Dear Friends, Yesterday I posed a question to the list concerning the possibility of doing animation examples in R. Here is an example S-Plus (4.5 for Windows ) that I wrote to illustrate my problem. If I try this in R (comment out the graphsheet and guilocator calls) I don't see my results until after the function has iterated through the 100 trials. I would like to plot each iteration.

I've wrote some code to simulate a random walk in 2 dimensions on a lattice. Basically I want to add something in to make it plot it point by point so you can see what is going on. Heres my code for the random walk in 2d RW2D<-function(N) { i<-0 xdir<-0 ydir<-0 xpos<-vector() xpos[1]<-xdir ypos<-vector() ypos[1]<-ydir for (i in 1:N-1)

Hello, I would like to know more about how to use the "apply" family and have attempted to convert nested "for" loops in example code from Contributed Documentation ("The Friendly Beginners' R Course? by Toby Marthews (ZIP, 2007-03-01)") to an "apply" function(s). The relevant code is: distances=c(51,65,175,196,197,125,10,56) #distances of 8 houses

Hi, I was wondering if someone in the mailing list has any insight into this segfault error that I consistently find when running a script containing heatmap() in R 2.8.1 and 2.8.0 on a Linux 64-bit machine. Some points: 1. This occurs when running heatmap(). 2. Interestingly, if I source() the script or copy and paste the script in its entirety, this error occurs. However, if I run the

Hello everybody I'm trying to write a simple version of matlab's "quiver". The idea is that I have fluid with velocity defined on a grid. I have a matrix of x-components of velocity and a matrix of y-components and I want to see the overall flow pattern. (I work with 2D fluid mechanics problems). My first-stab function is below: quiver <- function(u,v,scale=1) # first

Hello, I am using textplot function in gplots package to put some model output inside a PDF file, but it does not seem to work properly with PDF. I am doing follwing: pdf(file="C:/...", paper="a4", width=8, height=12) .model <- lm(.model.formula, data=database) textplot(capture.output(summary(.model)), valign="top", halign="left") I am getting these

I'm trying to help with http://bugs.codeweavers.com/show_bug.cgi?id=434 and came across my thread from Feb, that I must have missed. >> ----------------------------------- >> Non-Working (wine-2002-02-20 cvs) >> trace:win:SetCapture Calling Event_Capture >> trace:win:EVENT_Capture (0x20021) Window #!! -Maybe? >> trace:win:EVENT_Capture About to Return from Event

Hello, I think I found a bug: > windows(1,width = 10, height = 10, pointsize = 5,xpos = 0, ypos = 0 ) > hdata[1:3,1] <- c(1,10,15) > hdata[1:3,2] <- c(2,1,4) > plot(hdata[,1],hdata[,2],xaxt="n") > axis(1,at=c(2,10,14)) > minor.tick(nx=2, ny=1,tick.ratio=1) the minor tick marks appear between the tick marks which would have been drawn without the option

Hello everybody, I want to run the following R-code, but it does'nt work. > res.vgm = variogram(ertrag ~ rep, # !!! + loc = ~ xpos + ypos, # !!! + width = start.range / 10, + data = d) Error in vector("double", length) : element 2 is empty; the part of the args list of '.Internal' being evaluated was:

Hello, Using the rgl package, I can set the device window to any dimension (that I have tested): par3d(windowRect=c(1,1,700,700)) With windows I can't get the window to span from the top to the bottom of the monitor. In the following, no matter how large the ypinch value gets it stops, leaving about 2 inches of space at the bottom of my screen: windows(record=TRUE, ypinch=1100, xpinch=10,

Hi everyone, I experience some problems with adressing of data.frames when I retrieve some information for geographical position (ypos, xpos) ot of a MySQL Database and want to perform some simple statistics. The problem is adressing the dataframes with a construct like rawdata[c(type)] vs. rawdata$TEMPMIN to retrieve the numerical information and not a string (I want to store the numerical

I frequently run scripts that generate multiple graphs. Unless you specify a specific window location, dev.new superimposes all new graphics windows exactly on top of each other. It would be nice to have a "cascade=TRUE" option in dev.new to prevent windows from being hidden. A hasty approximation to this is the following function: # utility function to prevent overlapping plot

Hello, I am using code like the following to create as simple plot... plot(x,y,type='b') lines(lowess(x,y),lwd=3,lty=3,col=2) I want to add a legend which shows lines looking exactly like those used in my plot, i.e. a thin black line with gaps taken up by circles (the default for type='b', and a thick dashed red line with no pch at all). I have two problems, 1) making the

Hello all, Is it possible to change the radii line type in radial plots? I wasn't able to find anything online. Thanks, Bern -- View this message in context: http://r.789695.n4.nabble.com/Changing-radii-line-type-in-radial-plots-tp4647238.html Sent from the R help mailing list archive at Nabble.com.

Hello. Is it possible to set specify the font used by legend()? I would like to specify a fixed-width font so that I can line up parts of vertically stacked curve labels. For example, it would be nice if I could align the names, ages, and weights in the following three curve labels: Bob age=7 weight=100 Alexander age=13 weight=150 Susan age=20 weight=130 Is there perhaps a clever

I thought about that star graph again, and realized that it would be quite a handy thing for visualizing cyclic data like time or compass direction. Here is a cleaned up (and renamed) version to do a polar plot that starts at the right and goes counterclockwise or a 24 hour clock plot that starts at the top and goes clockwise. There are probably other varieties that would be interesting. Jim

Hi all, these are the remaining unapplied patches of the ARM HDLCD patch series. Changes in v7: - rebased on b61ed421d2c85b5b106c63f2c14f8aa162b282f0; - turn more printk and panic into early_printk and early_panic. Changes in v6: - rebased on 77d3a1db3196b1b5864469f8d3f41d496800c795; - remove useless initializations to NULL in lfb_init; - more compact checks in lfb_init. Changes in v5: - move

Hi all, Roger Peng and Jason Turner's suggestion with ImageMagick seem to be the simplest "dirty" way to get the problem solved. But I ran into yet another interesting but quite round-about way to solve the problem (partially). Through tcltk package, one can read in the gif image with > x <- tkcmd("image", "create", "photo", file=mypic.gif)

Hi All, I'd like to plot something like http://www.nawcwpns.navy.mil/~weather/mugu/mesodata/analysis.html Looking through the galleries at http://addictedtor.free.fr/graphiques/allgraph.php http://r-spatial.sourceforge.net/gallery/ http://fawn.unibw-hamburg.de/cgi-bin/Rwiki.pl?GraphGallery demo(graphics) I did not find a function to plot a 2d field on a matrix. I did find mention of a