Displaying 20 results from an estimated 7000 matches similar to: "Importing with read.table"
2002 Jul 02
2
Using names()
Hello all. I am trying to sets somes names for values, but getting the
following error. Can anyone help me on this?
> names(size_four)<-c("Refused","Size 10","Size 12","Size 14","Size
16","Size 18","Size 20","Size 22","Size 24","Size 26","Size 28","Size
30","Size
2002 Nov 18
5
order and rm()
Hello all. I have two small questions in one post, for the sake of brevity.
1. I have some objects that I want to delete. I have the line:
rm (c (channelheader, paste ("channel", 1:3, sep="")))
I have tried a few variations, including list=, but cannot figure it out. In
SAS, I can use a ':' as a wildcard. Is there any equivalent in R?
2. Is there any possible was to
2003 Sep 21
1
3 basic questions
I have 3 basic questions (sorry, but R is a bit new to me)
First)
The following code will work on C, but something happens with R:
> x<-c(0,1,1,0,0,1,0,0,1)
> dim(x)<-c(3,3)
> types<-numeric(3)
> for (i in 1:3) {
+ j<-1
+ while (x[i,j]!=1) j<-j+1
+ if (j==4) types[i]<-0
+ else types[i]<-1
+ }
Error: subscript out of bounds
Any ideas about what is wrong?
2002 Oct 13
1
barplot(): X-Axis Labels
Hello all. I have a simple barplot with sixteen different segments. When I plot my data, only five or six of the labels are showing in the x-axis. How do go get them all to show? Can I set them at a 45.degree angle? Thank you.
Jess
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2011 Nov 23
1
Losing custom attributes
Hi All,
I was adding a new row of data to my data frame using rbind(). I
was surprised to see that after adding new row, I lost my data frame level
attibute as well as col level attribute. Please help me to insert a new
row at frist or middle position so that my custom attribute is not lost.
Here is what I did.
age<-c(15,20,18)
weight<-c(40,42,30)
### creating my data frame
2002 Oct 10
1
Exporting Charts or Graphs
Hello all, I am fairly new to R and hope not to be a bother. I have used the R-GUI a small amount under Microsoft Windows0S. I recall the ability to export created charts and graphs to JPEG or other various image formats. How can I do this in the UNIX CLI version? Thank you.
Also, I have receiveder the following error after installing a package via CRAN. How would I fix this? Thank you.
Jess
2011 Nov 16
3
plotting a double y axis when x and y lengths differ
Hello All,
Many thanks to the help I have received so far.
Here is an example data set I hope to plot
Data1
Year Data SE
1 2005 2 0.01
2 2006 4 0.01
3 2007 5 0.01
4 2008 2 0.01
5 2009 3 0.01
6 2010 6 0.01
Data2
Year Data SE
1 2006 32 1
2 2007 100 2
3 2008 60 4
4 2009 67 3
5 2010 8 1
Notice Data2 has one less years worth of data than Data1 (which is my
2009 Nov 13
2
why the same values cannot be judged to be the same in R
Hi Rusers,
I found sometimes that the same values cannot be judged to be the same in
R. Anybody knows the probelm? I think i ignored some minor detail. Thanks.
Here is the example.
############
data1<-matrix(data=c(1,1.2,1.3,"3/23/2004",1,1.5,2.3,"3/22/2004",2,0.2,3.3,"4/23/2004",3,1.5,1.3,"5/22/2004"),nrow=4,ncol=4,byrow=TRUE)
2013 Jun 10
4
Combining CSV data
Hello R community,
I am trying to combine two CSV files that look like this:
File A
Row_ID_CR, Data1, Data2, Data3
1, aa, bb, cc
2, dd, ee, ff
File B
Row_ID_N, Src_Row_ID, DataN1
1a, 1, This is comment 1
2a, 1, This is comment 2
3a,
2010 Sep 06
1
combining collumns for data.frames
Hi
This question is far less simple than the title suggests, please read carefully, thanks.
I have 2 sets of data, both read into R
>data1<-read.table ("1.txt", header=T, sep="\t")
>data2<-read.table ("2.txt", header=T, sep="\t")
>data1
Taxon stage1 stage2 stage3 stage4
T1 0 0 1 1
T2 0
2008 Aug 21
1
problem merging two data sets ( one with a header and one without)
I have two set of data, Data1 and Data2 . Data1 has a header and Data2 does
not. I would like to merge the two data sets after removing some columns
from data2 .
I am having a problem merging so I had to write and read final data and
specify the ?header=F? so the merge can be done by?V1?. Is there a way to
avoid this step. The problem is when I do cbind the FinalData has different
column names
2008 May 14
4
Accessing items in a list of lists
Using R 2.6.2, say I have the following list of lists, "comb":
data1 <- list(a = 1, b = 2, c = 3)
data2 <- list(a = 4, b = 5, c = 6)
data3 <- list(a = 3, b = 6, c = 9)
comb <- list(data1 = data1, data2 = data2, data3 = data3)
So that all names for the lowest level list are common. How can I most
efficiently access all of the sublist items "a" indexed by the outer
2009 Nov 06
1
probem on merge data
Hi there,
data1<-matrix(data=c(1,1.2,1.3,"3/23/2004",1,1.5,2.3,"3/22/2004",2,0.2,3.3,"4/23/2004",3,1.5,1.3,"5/22/2004"),nrow=4,ncol=4,byrow=TRUE)
data1<-data.frame(data1)
names(data1)<-c("areaid","x","y","date")
data1
areaid x y date
1 1 1.2 1.3 3/23/2004
2 1 1.5 2.3 3/22/2004
3 2
2011 Nov 23
2
SPSS F-test on change in R square between hierarchical models
Hi,
I am wondering if anyone knows how to perform an F-test on the change in R
square between hierarchical models in R? SPSS provides this information and
a researcher that I am working with is interested in getting this
information. Alternatively, if someone knows how I can calculate the test
statistic (SPSS calls it F-change?) and dfs that would be helpful as well.
The output and the test I am
2010 May 28
1
Match 2 vectors
Hi,
I have 2 dataframes of unequal length, and I would like to match a
factor to them so that both dataframes will have the same number of
rows.
example:
# create the 2 dataframes with unequal length
data1 <- data.frame(letters, 1:26)[-c(5,10,19:21),]
data2 <- data.frame(letters, 1:26)[-c(6,9,15:18),]
data2a <- match(data1[,1], data2[,1])
data2b <- data2[data2a,]
When I match
2006 May 30
3
Faster way to zero-pad a data frame...?
Hello List,
I am working on creating periodograms from IP network traffic logs using the Fast Fourier Transform. The FFT requires all the data points to be evenly-spaced in the time domain (constant delta-T), so I have a step where I zero-pad the data.
Lately I've been wondering if there is a faster way to do this. Here's what I've got:
* data1 is a data frame consisting of
2003 Apr 10
6
How to plot several graphs in a single 2-D figure?
Hi, R-listers
I tried to plot several graphs in a sigle x-y coordinate settings, like the
following:
|(y) s
| ****** s
| ***** s
| sssssssssssssssssss
|_______________________________(x)
where "*" and "s" denote two diffrent plots.
However, when I used
plot(data1); % data1 is the data points of "*"
2011 Oct 07
2
Merge dataframes
Hello,
I am having some problems to use the 'merge' function. I'm not sure if I got
its working right.
What I want to do is:
1) Suppose I have a dataframe like:
height width
1 1.1 2.3
2 2.1 2.5
3 1.8 1.9
4 1.6 2.1
5 1.8 2.4
2) And I generate a second
2012 May 27
3
Problem with strptime
Hello Forum,
I have a problem with the strptime function. With the ''data1'' dataset below
it works fine, but with the ''data2'' dataset something goes wrong (see final
line below). Both data1 and data2 are in exactly the same original format,
the only difference is that they span different dates. Please help, since it
is driving me nuts! Many thanks.
Best
2010 Dec 07
4
Creating binary variable depending on strings of two dataframes
Hi,
consider the following two dataframes:
x1=c("232","3454","3455","342","13")
x2=c("1","1","1","0","0")
data1=data.frame(x1,x2)
y1=c("232","232","3454","3454","3455","342","13","13","13","13")