Displaying 20 results from an estimated 9000 matches similar to: "problem with times"
2007 Oct 08
2
sort time
Hello, I have got the following problem:
> times <- c("02.07.2007", "03.07.2007","03.09.2007", "04.07.2007","05.07.2007")
> mode(times)
[1] "numeric"
> tim <- as.character(times)
> mode(tim)
[1] "character"
> sort(times)
[1] "02.07.2007" "03.07.2007" "03.09.2007"
2007 Jul 22
2
Data Set
Hi Sir
I have made a data set having 23 stations of rainfall.
when I use the attach function to approach indevidual stations then
following error occurr.
*>attach(data)*
*>S.Sharif #S.Sharif is the station name which has 50 data values*
*Error: object "S.Sharif" not found*
Now how to solve this problem.
Thank You
Regards
--
AMINA SHAHZADI
Department of Statistics
GC
2009 Sep 17
2
SVM
Hello,
I have 12 sample each sample has got 1000 observation, i.e I have a matrix X with 1000 rows and 12 columns!
m <- svm(t(X))
p <- predict (m)
Can anyone tell me how to use svmtrain() in R!
Many Yhanks,
Samuel
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2007 Sep 27
2
plot or boxplot!
Hello,
if we suppose that
times <- c("2006-05-14", "2006-06-12", "2006-06-12", "2006-05-14", "2006-05-14", "2006-06-12")
value <- c(2,3,1,4,3,1)
then with
plot(times, value)
we have two boxplots in one graph for 2006-05-14 and 2006-06-12 respectively! Is it possible to have them in a scatterplot? and
2003 Feb 11
1
Dynamic Linear Models for Times Series - Implemented?
Hi,
I was wondering whether a package that can perform dynamic linear models on
times series data was available for R?
Many Thanks,
Gavin Simpson
%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%
Gavin Simpson [T] +44 (0)20 7679 5522
ENSIS Research Fellow [F] +44 (0)20 7679 7565
ENSIS Ltd. & ECRC [E] gavin.simpson at
2007 Sep 26
2
date
Hello,
I have got the following problem:
> setwd("C:/temp")
> library(xlsReadWrite)
> MyData <- read.xls(file="Mappe1.xls", colNames = TRUE,dateTimeAs = "isodatetime")
> attach(MyData)
> MyData
name value times
1 A1 2 2006-05-12
2 A2 3 2006-05-16
3 A3 1 2006-05-12
4 A4 4 2006-05-12
5 A5 2
2008 Mar 14
2
SAS data
Hello,
I am trying to read the SAS file MyData.sa7bdat in R! This file is saved under D:\data! I therefore wrote
> path <-"D:/SasData"
> sashome <- "C/Progra, Files/SAS Institute/9_1/SAS"
> sascmd <- file.path(sashome, "sas.exe")
> MyData <- read.ssd(path, "MyData", sascmd=sascmd)
The results what I get:
2010 Jan 19
5
OT: Software for specific visualisation of data...ideas?
Dear List,
A student in the Department where I work would like to produce a graphic
similar to this one:
http://image.guardian.co.uk/sys-files/Guardian/documents/2009/09/16/Public_spending_160909.pdf
Does anyone know if the figure in the pdf can be generated in a specific
software application for example? Any suggestions would be most
gratefully received by the student concerned.
Many thanks,
2012 Dec 29
2
Error in plot.envfit(ef, p.max = 0.1) : (subscript) logical subscript too long
Hello there,
I'm trying to plot vectors with p<0.1 in a NMDS ordination plot using p.max. Below the scripts I'm using. I guess I'm missing something! could you please give me a hand?
species<-metaMDS(species_matrix)ef<-envfit(species,environmentaldata_file,permu=999,na.rm=TRUE)efplot(species, dis="sites")plot(ef,p.max=0.1)
Error in plot.envfit(ef, p.max = 0.1) :
2006 Oct 31
3
one problem about how to hold graphic with R
Sorry to disturb you, but can you help me to solve one little problem?
I want to draw a graphic after another with R
but I cannot find the first one after that.
Do you know the command to hold the graphic with R?
I remember with Matlab you may use "hold on".
Thanks.
--
Baohua Yang
Email:yangbaohua@gmail.com
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2009 Aug 08
2
Factor Analysis in R
Hi I am trying to run Factor Analysis using R...I am using the syntax
factanal(m1, factors=3) but it's giving me an message Error in cov.wt(z) :
'x' must contain finite values only
...I am using a data set which is having only numeric variables and have
some NA's also in it..What should I do next..Someone please help me out with
the syntax..Thanks in advance
Cheers
Arup
--
2009 Sep 15
5
identical(length(x), 1) returns FALSE, but print(length(x)) is 1, length(x)==1 is TRUE, and is.integer(lenght(x)) is TRUE????
Dear R,
the condition:
identical(length(x),1) returns FALSE
but
print(length(x))
returns 1 and:
is.vector(x) is TRUE.
is.integer(length(x)) is TRUE
length(x) ==1 is TRUE
I am puzzled.
Regards
--
Corrado Topi
Global Climate Change & Biodiversity Indicators
Area 18,Department of Biology
University of York, York, YO10 5YW, UK
Phone: + 44 (0) 1904 328645, E-mail: ct529 at york.ac.uk
2004 Nov 04
3
sub- and superscript in plot labels
Dear List,
I need to add a subscript and a superscript to some of the ions in the
labels on some plots.
I have got to here but now I'm stuck:
plot(1:10, xlab = expression(paste("nm SO"[4], " ", mu, "eq cm"^{-2}, "
yr"^{-1})))
Which gives almost what I require. No matter what I tried, however, I
could not get bot a sub script *and* a superscript
2008 Mar 03
7
help for the first poster- a simple question
Hi, there,
I cannot get accurate value for calculation.
for example:
ld<-sqrt(1*0.05*0.95*0.05*0.95)
0.05*0.95-ld=-6.938894e-18
0.05*0.95-ld==0 is False.
I met this problem in my program, how can I handle it. Thanks.
xj.
2010 Aug 21
4
basic hist() question
Hi list
I loaded the content of a file dureetasks.txt to variable a. This file
contains an interger per line.
when I print a vector, it displays correctly.
however, when I try to print the histogram, I get this error message
> a=read.table("dureetasks.txt")
> hist(a)
Error in hist.default(a) : 'x' must be numeric
Can you help please?
regards
--
PhD candidate in
2011 Nov 18
1
cca with repeated measures
Dear all,
How can I run a constrained correspondence analysis with
the following data:
15 animals were measured repeatedly month-wise (over to 2 years)
according to ther diet composition (8 food categories).
our data.frame looks like this:
food 1 2 ... 8 sex season year animal
freq 12 8 ... 1 0 summer 2011 1
freq 0 7 ... 0 1 winter 2011 1
...
freq 0 7 ... 0 1 spring 2011 15
We
2005 Aug 16
2
problem using model.frame()
Hi I'm having a problem with model.frame, encapsulated in this example:
y1 <- matrix(c(3,1,0,1,0,1,1,0,0,0,1,0,0,0,1,1,0,1,1,1),
nrow = 5, byrow = TRUE)
y1 <- as.data.frame(y1)
rownames(y1) <- paste("site", 1:5, sep = "")
colnames(y1) <- paste("spp", 1:4, sep = "")
y1
model.frame(~ y1)
Error in model.frame(formula, rownames,
2008 Jul 23
2
Weighted variance function?
There is a R function to calculate weighted mean : weighted.mean() under
stats package. Is there any direct R function for calculating weighted
variance as well?
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2005 Nov 03
4
merging dataframes
Dear List,
I often have to merge two or more data frames containing unique row
names but with some columns (names) common to the two data frames and
some columns not common. This toy example will explain the kind of setup
I am talking about:
mat1 <- as.data.frame(matrix(rnorm(20), nrow = 5))
mat2 <- as.data.frame(matrix(rnorm(20), nrow = 4))
rownames(mat1) <- paste("site",
2009 Nov 05
2
annotating time axis by axis.POSIXct
Dear all
I try to format labels on axis as standard ones does not look well, but I
am not able to make axis.POSIXct to work. here is an example
x<-seq(as.Date("2008-1-1"), as.Date("2009-9-6"), by="2 months")
y<-rnorm(11)
plot(x,y) #not very sophisticated axis
plot(x,y, axes=F)
axis(2)
axis.POSIXct(1, at=x, format="%m/%Y") # no axis
The same is on