Displaying 20 results from an estimated 1000 matches similar to: "Problem with object inside a function"
2008 Feb 21
1
update don't find an object
Hi,
I have a situation here.
I try this update:
mmaa <- update(mma,biomass~qvartemp)
but I have this message:
Error in eval(expr, envir, enclos) : object "qvartemp" not found
but this object exist:
[1] "cont" "i" "levelsord" "mma" "qvar" "qvarmma"
[7] "qvartemp" "test"
2008 Feb 20
2
factors ordered by mean
Hi,
How to order the levels os factor not by alphabetic order but by mean of Y.
Somethink like this:
I have this alphabetic order:
> levels(pH)
[1] "alto" "baixo" "medio"
the order by mean os yvar is:
> sort(tapply(Riqueza,pH,mean))
baixo medio alto
11.56667 20.00000 26.80000
How to make the levels of pH ordered by this mean to the result to
2011 Feb 11
1
Using merge
Hi,
I have two tables and I need to merge both. I use the merge command, but
in this way the name must be exactly. How I can make to compare
independently of upper or lower-case?
Look:
data1<-data.frame(journal=c("Ecology","Environmental
Entomology","Neotropical Biology And Conservation"))
2007 Oct 05
3
help in substitute function
Hi,
I try to use a substitute function to generalise a equation.
I have this:
expression(1+2*pred+3*lat)
I need to define the equation in function of x1 and x2 variables. Also I try
to define who is x1 and x2. I try this:
X1 <- "pred"
X2 <- "lat"
Now I need substitute pred and lat in equation by x1 and x2 defined on X1 and
X2 above, I try this way:
>
2009 Sep 01
2
Simple question about data.frame reduction
Hi,
this is a simple question
I have this data.frame:
> test <-
data.frame(var1=c(1,1,1,1,1,1),var2=c("a","a","b","c","d","e"),var3=c("a1","a1","b1","a1","c1","d1"))
> test
var1 var2 var3
1 1 a a1
2 1 a a1
3 1 b b1
4 1 c a1
5 1
2007 Dec 13
4
Very simple question on plot
Hi,
I try to make a plot like this:
Y |
|
| o
| o o
| o o
| o o
|o o o
|--------------------------------
0 10 20 30 40 50 60 70 80 90 100 (A)
100 90 80 70 60 50 40 30 20 10 0 (B)
or
B
100 90 80 70 60 50 40 30 20 10 0
Y |--------------------------------
|
| o
2011 Apr 08
4
Very simple question
Hi,
I have a very simple doubt.
Look:
> teste <- c("A","B","C")
> teste2 <- paste(teste[1],teste[2],teste[3],sep="+")
> teste2
[1] "A+B+C"
>
How to make it automatic, like I try to use paste(teste,sep="+") but the
paste dont get the teste elements separately to join again in a unique
element.
Exist any
2008 Aug 01
2
How to get the p-value from lmer on a longitudinal analysis
Hi,
I have a modelo like this:
Yvar <- c(0, 0, 0, 0, 1, 0, 0, 0, 1, 2, 1, 1, 2, 3, 6, 6, 3, 3, 4)
TIME <- 4:22
ID <- rep("PlotA",19)
m <- lmer(Yvar~TIME+(TIME|ID),family=poisson)
anova(m)
summary(m)
How to get the p-value for this case?
Thanks
Ronaldo
--
Just because you're paranoid doesn't mean they AREN'T after you.
--
> Prof. Ronaldo Reis J?nior
|
2008 Mar 03
3
Script to start Rcmdr
Hi,
anybody know any way to make a bash script to start Rcmdr directly widthout
need to open R and execute library(Rcmdr)?
I try to make this using R CMD BATCH somethink, but dont find the way.
Thanks
Ronaldo
--
> Prof. Ronaldo Reis J?nior
| .''`. UNIMONTES/Depto. Biologia Geral/Lab. de Biologia Computacional
| : :' : Campus Universit?rio Prof. Darcy Ribeiro, Vila Mauric?ia
|
2007 Aug 24
3
It is possible to use a Shell command inside a R script?
Hi,
It is possible to use a shell command inside a R script?
I'm write a R script and I like to put somes shell commands inside to R.
Somethink like: convert fig01.png fig01.xpm or sed ..., etc.
It is possible? How?
Thanks
Ronaldo
--
Acalme-se, s??o somente 0's e 1's
--
> Prof. Ronaldo Reis J?nior
| .''`. UNIMONTES/Depto. Biologia Geral/Lab. de Ecologia
| : :' :
2007 May 21
2
more simplified output from glht object
Hi,
I use glht to make multcomp, using Tukey, from a glm model.
It is possible to get a more simplified output of result? Somethink like
ordering by letters.
Thanks
Ronaldo
--
Human kind cannot bear very much reality.
-- T. S. Eliot, "Four Quartets: Burnt Norton"
--
> Prof. Ronaldo Reis J?nior
| .''`. UNIMONTES/Depto. Biologia Geral/Lab. de Ecologia
| : :' :
2008 Sep 22
1
change the panel name in xyplot
Hi,
I try to change the panel name in a xyplot without success.
Look this example from xyplot manual:
xyplot(Murder ~ Population | state.region,data=states)
The panel title are:
Northeast, South, North Central, West, that are factor from state.region.
I need do change some names and, for example, put some of these in italic. I
dont find how change this.
I looking for this in Deepayan
2007 Feb 22
1
problem with weights on lmer function
Hi,
I try to make a model using lmer, but the weigths is not accept.
m1<-lmer(ocup/total~tempo+(tempo|estacao),family=binomial,weights=total)
Erro em lmer(ocup/total ~ tempo + (tempo | estacao), family = binomial, :
object `weights' of incorrect type
I dont understand why this error, with glm this work. the total object is a
vector.
Any idea?
Thanks
Ronaldo
--
God is subtle, but
2007 Oct 13
1
Make playwith a default graphic device
Hi,
I looking for a graphic device on Linux with more functionalities than the X11
(). I find the plotAndPlayGTK package and the playwith function. It is a good
device. It is possible to make it default in my system.
Now I need:
> library(plotAndPlayGTK )
Loading required package: RGtk2
Loading required package: cairoDevice
>
> playwith(plot(1,1))
Error in plot.new() : figure margins
2012 May 30
1
Automatically install package dependencies
Hi,
I have a R Package. It is working, but I can't that it install the
dependencies automatically. When I try to install I receive this message:
> install.packages("./RT4Bio_1.0.tar.gz",dependencies=TRUE)
Installing package(s) into '/usr/local/lib/R/site-library'
(as 'lib' is unspecified)
inferring 'repos = NULL' from the file name
ERROR: dependency
2010 Nov 17
1
Color on trellis device
Hi,
I try to make a xyplot withou colors. I try:
pdf(file="test.pdf")
trellis.device(color=F)
Depth <- equal.count(quakes$depth, number=8, overlap=.1)
xyplot(lat ~ long | Depth, data = quakes)
dev.off()
the graphic is showed without colors in a X device but it dont work
saving directly on pdf device.
How I made to put color off in trellis device?
Thanks
Ronaldo
--
2ยช lei - Na
2008 Aug 05
1
Add arrows to a filled.contour margin
Hi,
I try to put an arrow to a filled.contour plot. I make this:
filled.contour(volcano, color = terrain.colors,key.axes=F)
arrows(0.95,0,0.95,1,lwd=2)
This work, but the problem is that I find the coordinates at random try, for
other graphic with other scale is other fight with coordinates. Anybody know
a more easy or more generalized way to make this? Somethink like this
2011 Dec 13
2
Problem with package compilation
Hi,
I have a R package with some functions made all of then only with R
code. I use the command R CMD build to build a package that I can
install on linux, windows or mac, because all the code is only R code.
But I have some problems with R version. For each new R version I need
to rebuild the package to be install in this new version. It is possible
to make a package without this R Version
2007 Apr 23
1
help on xyplot and curves
Hi,
I need to add some different curves to a each panel in a xyplot. I have a old
function to make this using panel.number, like this:
panel=function(x,y,panel.number,...){
panel.xyplot(x,y,...)
if(panel.number==1){
panel.curve(-655.8689+769.1589*log(5)+64.7981*log(x)-206.4475*log(5)^2)
}
if(panel.number==2){
2007 Feb 22
1
JGR launcher for linux
Hi,
anybody have a JGR launcher for linux? Maybe a script that launch JGR directly
without open R then library(JGR) and JGR().
Thanks
Ronaldo
--
Deflector shields just came on, Captain.
--
> Prof. Ronaldo Reis J?nior
| .''`. UNIMONTES/Depto. Biologia Geral/Lab. Ecologia Evolutiva
| : :' : Campus Universit?rio Prof. Darcy Ribeiro, Vila Mauric?ia
| `. `'` CP: 126, CEP: