Displaying 20 results from an estimated 1300 matches similar to: "floor(NaN) problem fixed in massdist.c (PR#291)"
1998 Nov 28
1
No subject
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.
2009 May 25
3
Interpolating variables within (RODBC library) SQL statements for MySQL
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 <-
2009 Jul 09
1
Creating and Using Objects in R
Dear All,
I am not very into object-oriented programming, but I would like to
learn the ropes for some R applications.
Quoting from the online R language definition (paragraph 5.1)
> Consider the following simple example. A point in two-dimensional
> Euclidean space can be specified by its Cartesian (x-y) or polar
> (r-theta) coordinates. Hence, to store information about the location
2009 Aug 27
2
setting par(srt) according to plot aspect ratio
How can I look up the aspect ratio of a plot, so I can use that to correctly
adjust the angle of text which is supposed to be parallel to a line in the
plot?
The following example code works for a 1:1 aspect ratio, but puts the text
at the wrong angle if the plot region is short and wide or tall and narrow.
I can't find a par() component containing the plot aspect ratio. It will
be for
2010 Dec 02
4
2D Random walk
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)
2008 Aug 09
1
Converting nested "for" loops to an "apply" function(s)
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
2009 Mar 24
1
segfault when running heatmap()
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
2001 Nov 20
2
quiver plot help
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
2000 Jul 28
4
Language element manipulation
I am very confused about this. I want to convert a string to a name so I can
use it to extract an element of a data frame using `$'. Here is my
(non-working) code:
do.graph <- function (meas)
{
fn <- paste("a", meas, ".dat", sep='')
themeas <- read.table(fn, header=F)
ameas <- as.name(paste("a", meas, sep=''))
2008 Jun 13
1
package under unix
Hi the list,
I write a package for clusterizing longitudinal data using a non
parametric algorithm. I develop the package under windows. To be as
user friendly as possible, the package use some graphical procedure to
"show" to the user the evolution of the cluster construction, and to
export the graph in a friendly way.
Here are some example : http://christophe.genolini.free.fr/kml
2010 Sep 15
2
Using feather.plot to try and generate a stick plot of current velocity data (and having issues)
Hello All,
I am attempting to use the feather.plot function from the plotrix
package to graph current velocity data as I have speed and direction. I
let "r" be the first 10 rows of current speed data and "theta" be the
first 10 rows of directional data in radians. I had tried this with 10
measurements, but keep getting the following error message:
>
2007 Oct 31
1
textplot() in gplots causes problems (0x9)
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
2012 Jul 24
1
Annotate forest plot 'forest.rma()' for meta-analysis with metafor package
Dear R-experts,
The forest.rma() function from the metafor package creates nice forest
plots for presenting the results of a meta-analysis. These plots can be
annotated for e.g. giving names to the columns. E.g. as in the
documentation of the package:
data(dat.bcg)
### meta-analysis of the log relative risks using a random-effects model
res <- rma(ai=tpos, bi=tneg, ci=cpos, di=cneg,
2010 Nov 23
1
Slow update(insert) on Data.frame
Hi
When I try to update an number in a large data.frame by its pos It's really
slow it take almost a sec to do this and I wonder why and if where is any
faster way to update a number in a data.frame
ive tried
DF$col[POS]<-number
DF[xPOS,yPOS]<-number
Thx
//Joel
--
View this message in context: http://r.789695.n4.nabble.com/Slow-update-insert-on-Data-frame-tp3055707p3055707.html
2002 Apr 10
0
FoxPro Regressions - followup from Feb
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
2009 Mar 21
1
Forestplot () box size question
Hi All,
I have been able to modify the x-axis to start at zero by adding xlow
and xhigh parameters; that was pretty simple. I have been unable to
find the location of the code that would turn off the information
weighting of the box size (I have smaller randomized trials getting
less weight than a much larger non-randomized trial). The function
is forestplot() from rmeta.
Thanks for any
2009 Mar 20
1
minor tick marks for plots (PR#13616)
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
2009 Oct 08
1
variogram
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:
2011 Oct 21
1
windows limits
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,
2009 Jun 16
1
adressing dataframes
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