Displaying 20 results from an estimated 386 matches for "gaverstraat".
2010 Nov 29
1
Sweave choking on \\ in filename
...a namespace (and not attached):
[1] cluster_1.13.2 grid_2.12.0 lattice_0.19-15 svMisc_0.9-61
[5] tools_2.12.0
>
------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek
team Biometrie & Kwaliteitszorg
Gaverstraat 4
9500 Geraardsbergen
Belgium
Research Institute for Nature and Forest
team Biometrics & Quality Assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx at inbo.be
www.inbo.be
To call in the statistician after the experiment is done may be no more
than askin...
2011 Mar 10
1
Problem with defining new method for residuals()
...setMethod("resid", signature(object = "AFLP.outlier"),
function(object, ...){
object at Residual
}
)
----------------------------------------------------------------------------
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek
team Biometrie & Kwaliteitszorg
Gaverstraat 4
9500 Geraardsbergen
Belgium
Research Institute for Nature and Forest
team Biometrics & Quality Assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx at inbo.be
www.inbo.be
To call in the statistician after the experiment is done may be no more than askin...
2007 Dec 03
3
ggplot2: Choosing colours
...;black"))
------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx op inbo.be
www.inbo.be
Do not put your faith in what statistics say until you have carefully
considered what they do not say. ~William W. Watt
A statistical analysis, properly conducted, is a delicate dissection of
uncertainti...
2011 Apr 27
6
Assignments inside lapply
Dear all I would like to ask you if an assignment can be done inside a lapply statement.
For example
I would like to covert a double nested for loop
for (i in c(1:dimx)){
for (j in c(1:dimy)){
Powermap[i,j] <- Pr(c(i,j),c(PRX,PRY),f)
}
}
to something like that:
ij<-expand.grid(i=seq(1:dimx),j=(1:dimy))
unlist(lapply(1:nrow(ij),function(rowId) { return
2011 Oct 26
4
Error message library()
...n this machine. Check the name of the package or use install.packages("xyz") to install it.
Best regards,
Thierry
----------------------------------------------------------------------------
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek
team Biometrie & Kwaliteitszorg
Gaverstraat 4
9500 Geraardsbergen
Belgium
Research Institute for Nature and Forest
team Biometrics & Quality Assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx at inbo.be
www.inbo.be
To call in the statistician after the experiment is done may be no more than askin...
2009 Dec 22
2
Nested For loops
Dear R experts,
Might be very simple question to ask but would be insightful. As the same story of nested "for loops". following is the code that I am using to get the autocorrelation function of the sample data. I have tried to get rid of for loops but since I am touching R after such a long time that I need to practice more but I need help to revive my skills. I know that apply() or
2010 Apr 19
2
ecdf
Hello,
I'd like to plot an empirical cumulative distribution function, except
instead of the fraction of values < x, I'd like the fraction of values > x.
I think this can be done using the ecdf function in {Hmisc}. I installed
the package and loaded it. However, when following the example given in the
documentation, I get an error:
x <- rnorm(100)
ecdf(x,what='1-F')
2010 Nov 04
5
ggplot output
Dear All,
I have this script:
dat <- data.frame(Month = hstat$Date,C_avg = hstat$C.avg,C_stdev =
hstat$C.stdev)
ggplot(data = dat, aes(x = Month, y = C_avg, ymin = C_avg - C_stdev, ymax =
C_avg + C_stdev)) +
geom_point() +
geom_line() +
geom_errorbar()
dat <- data.frame(Month = hstat$Date,K_avg = hstat$K.avg,K_stdev =
hstat$K.stdev)
ggplot(data = dat, aes(x = Month, y = K_avg,
2007 Feb 13
1
RE2: Suddenly "Subscript out of bounds"
...ot R itself?
------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Reseach Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx at inbo.be
www.inbo.be
Do not put your faith in what statistics say until you have carefully
considered what they do not say. ~William W. Watt
A statistical analysis, properly conducted, is a delicate dissection of
uncert...
2010 Apr 29
5
reduce size of pdf
is there a way to reduce the size of pdf files in R: ?
compression?
lower dpi ?
or some other option?
2011 Jul 13
2
Meaning of "%%"
Dear r helpers
This may be very elementary question but I couldn't figure out what does the operator %% do?
E.g.
p <- 100
q <- 200
p%%q
[1] 100
q%%p
[1] 0
Please guide.
Vincy
[[alternative HTML version deleted]]
2010 Aug 30
1
compare three values
Hi,
I've three values. What is the best method to choice the lowest values
with an if function?
example:
a = 3
b = 1
c = 5
if (lowest(a,b,c) is a) {........}
if (lowest(a,b,c) is b) {........}
if (lowest(a,b,c) is c) {........}
Thanks,
Alfredo
2010 Nov 18
2
how to find near neighbors?
I am looking for an efficient way to find near neighbors...
More specifically...
I have two sets of points: A & B and I want to find
points in set B which are closer to set A than some
cutoff (or n-closest)
I will appreciate very much any pointers...
Ryszard
--------------------------------------------------------------------------
Confidentiality Notice: This message is private and may
2011 Nov 17
1
How to resample one per group
Hello,
I have got a dataframe which looks like:
y <- c(1,5,6,2,5,10) # response
x <- c(2,12,8,1,16,17) # predictor
group <- factor(c(1,2,2,3,4,4)) # group
df <- data.frame(y,x,group)
Now I'd like to resample that dataset.
I want to get dataset (row)
per group. So per total sample I get 4 rows
into a new data frame. How can I do that?
Is there any simple approach using an
2007 Jul 18
1
Strange warning in summary.lm
...hanks,
Thierry
------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx op inbo.be
www.inbo.be
Do not put your faith in what statistics say until you have carefully
considered what they do not say. ~William W. Watt
A statistical analysis, properly conducted, is a delicate dissection of
uncertainties...
2010 Feb 09
2
step and glmer
Is it possible to use the step() function with a glmer() as an object? I
obtain the following error message when I try to do it: "Error in x$terms :
$ operator not defined for this S4 class".
I perform the glmer correctly but I can't do the step.
Thank you so much.
--
View this message in context: http://n4.nabble.com/step-and-glmer-tp1474390p1474390.html
Sent from the R help
2011 Jul 28
1
ggplot2 help/suggestions needed
Hello,
I have written a version of the Kohenen Self Organizing Map (in R) and wish
to use ggplot2 for the visualization. My results are RGB values in a matrix
[x,y,1:3] where x and y comprise the first two dimensions and the third
dimension is the RGB vector.
I am not sure whether to use geom_tile or geom_hex as there really is no
binning at the finest granularity. For testing, the matrix is
2006 Oct 25
3
simplification of code using stamp?
Hi
I have the following code which I would like to simplify. Id does linear
regressions and returns the r-squares, and the coefficients.
It runs slow, as it is doing the regressions for each - is it possible
to get the values in a dataframe which looks as follow:
expert | xx | seeds | r.squared | slope | intercept
Thanks in advance,
Rainer
library(reshape)
rsqs <- as.data.frame(
2011 Apr 28
1
Coding design with repeated measurements in the survey package
...ould like to perform
svyglm(Y ~ Year, SVD)
#the mixed models approach
library(lme4)
lmer(Y ~ Year + (1|Site), data = Design)
----------------------------------------------------------------------------
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek
team Biometrie & Kwaliteitszorg
Gaverstraat 4
9500 Geraardsbergen
Belgium
Research Institute for Nature and Forest
team Biometrics & Quality Assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx at inbo.be
www.inbo.be
To call in the statistician after the experiment is done may be no more than askin...
2010 Oct 08
2
Count values in a dataframe with respect to groups
Dear all,
I am looking for a function to count values belonging to a class within a dataframe (and ignore NAs).
grp = c(1,1,1, 1,2, 2,2)
val = c(2,1,5,NA,3,NA,1)
dta = data.frame(grp=grp, val=val)
The result should look like:
grp count
1 3
2 2
At the moment, I am trying to find a function for FUN in aggregate, but with no success. Can anybody help me?
Thanks in advance.
Marcus