Displaying 20 results from an estimated 400 matches similar to: "zero fill empty cell in data.frame"
2008 Jul 14
2
long data frame selection error
Hello,
I am trying to select the following headers from a data frame but when I try
and run the command it executes halfway through and give me an error at V188
and V359.
Temp <- data.frame(V4, V5, V6, V7, V8, V9, V10, V11, V12, V13, V14, V15,
V16, V17, V18, V19, V20, V21, V22, V23, V24, V25, V26, V27, V28, V29, V30,
V31, V32, V33, V34, V35, V36, V37, V38, V39, V40, V41, V42, V43, V44, V45,
2006 Feb 01
2
sort columns
Hi.
I have a simple (I think) question
My dataset have these variables:
names(data)
[1] "v1" "v2" "v3" "v4" "v5" "v6" "v7" "v8" "v9" "v10"
"v11" "v12" "v13" "v14" "v15" "v16" "v17"
2005 Jan 25
3
multi-class classification using rpart
Hi,
I am trying to make a multi-class classification tree by using rpart.
I used MASS package'd data: fgl to test and it works well.
However, when I used my small-sampled data as below, the program seems
to take forever. I am not sure if it is due to slowness or there is
something wrong with my codes or data manipulation.
Please be advised !
The data is described as the output from str()
2010 Aug 28
2
extracting columns
Hi,
Can anybody show me how to extract all columns in my dataset that are
polymorphic? Or phrased in another way I would like to delete all
columns that have no more than one letter in it (that are monomorphic).
Thank you.
Laetitia
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2008 Oct 27
1
Problem with script,
I?m sorry, in my last email I forgot to attach the data I?m using wich
is a matrix of 175x175 filled with 0?s and 1?s
0 is the sea
1 is the continental land
The script is area.r
Thank you very much.
Carlos L?pez
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2011 Apr 08
2
lars - lasso problem
hi,
I have problem in following code, error is occurred. I have attached my data
herewith. and my code is as following,
> library(lars)
Loaded lars 0.9-8
Warning message:
package 'lars' was built under R version 2.12.2
> x<- read.table("D:/spring '11/james reggression/NewFeature.txt")
> y<-read.table("D:/spring '11/lars/RFU.txt")
> out<-
2013 Feb 01
2
how to setdiff on lists of lists
Dear List,
I have a data structure like:
> aa
[[1]]
[1] 1 2 3
[[2]]
[1] 4 5 6
> bb
[[1]]
[1] 3
[[2]]
[1] 5
I would like to set differences between "aa" and "bb" and get as
result another list of lists like:
> res
[[1]]
[1] 1 2
[[2]]
[1] 4 6
I am trying:
lapply(aa, setdiff, bb)
but I simply get "aa" back as result. Could you please point me in the
2011 Jan 03
4
how to invert the axes in the wireframe() plot
Dear List,
I am using the wireframe function in the lattice package, and I am wondering if it is possible to invert the default axes orientation for x and y axes... what parameter should I look for?
Best regards,
Simone Gabbriellini
2008 Nov 30
4
simple question with table()
Dear List,
my problem should be easy to fix, but I couldn't find a solution by
myself...
In my survey, there is a question with 14 possible answers. None of
the respondents choose the 13th answer, so when I table() the results,
R says:
1 2 3 4 5 6 7 8 9 10 11 12 14
31 52 7 21 40 7 8 2 28 2 2 1 17
13 is missing... anyone knows how to tell table() that there are 14
modalities in the
2006 Sep 12
2
coerce matrix to number
Dear List,
how can I coerce a matrix like this
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] "0" "1" "1" "0" "0" "0"
[2,] "1" "0" "1" "0" "0" "0"
[3,] "1" "1" "0" "0" "0" "0"
[4,] "0" "0"
2012 May 07
1
wireframe and par(mfrow)
Hello List,
I have some plots with the wireframe() function, and I'd like to
display them in a single jpeg file. I know that par(mfrow=c(x,y)) will
divide my display window in x rows and y columns, and although this
works with plot(), it looks like it's not working with wireframe.
here's my code:
library(lattice)
library(Cairo)
CairoJPEG("wiley-rank.jpeg", width=960,
2005 Aug 11
1
tcltk programming guide
Dear List,
I'm looking for some documentation about the R tcltk package
The one I found in the help doesn't look exaustive, I need
information on the use of the single tk widget, maybe with some examples
thank you,
simone gabbriellini
2003 Mar 18
3
Package installation when $RHOME is not writable (win)
I'm using R in a student lab with machines running win XP. $RHOME is not
writable by the students. How do I set this up so that they can install
packages?
Thanks,
Robert.
----
Robert King, Statistics, School of Mathematical & Physical Sciences,
University of Newcastle, Australia
Room V133 ph +61 2 4921 5548
Robert.King at newcastle.edu.au
2005 May 19
2
laten class analysis
Dear List,
just a little question,
I am interested in Latent Class Analysis and
I guess if there is a package for this pourpose
thank for you help,
Simone
2005 Aug 03
3
problem with for()
Dear list,
can someone tell me why this two pieces of code give me the same
results?
> for(i in 0:5){ sum[i] = i }
> sum
[1] 1 2 3 4 5
> for(i in 1:5){ sum[i] = i }
> sum
[1] 1 2 3 4 5
shouldn't the first one be
0 1 2 3 4 5
thank you,
simone
2005 Aug 29
1
Rcmdr extensions
Dear List,
I am trying to extend Rcmdr with some functions usefult to my
study... I have addedd succesfully a menu and some submenu to the
GUI, and I have placed a file .R in the /etc folder... I am able to
call functions on that file, but I cannot see the results: how can I
tell Rcmdr to write the output in the output box?
Second question: how can I refer to the actually selected
2010 Oct 20
1
how to connect to a remote PostgreSQL database from R on mac osx
Hello List,
I would like to connect to a postgreSQL database on a remote server and I am wondering what is the best package to do that. I have just installed RpgSQL, RPostgreSQL, Rdbi and RODBC.
The handiest to me is RPostgreSQL but I don't see how to connect to a remote server with it. For sure I can connect to remote server with RODBC, but since I am on a Mac OSX 10.6, I have quite
2008 Nov 07
5
Agent-based social simulation and R
Do anyone know anything about the use of R for agent-based social
simulation? It should be possible, and would be convenient for the
simple reason that there are several nice packages containing useful
stuff for SNA (Social Network Analysis). Information about packages,
web sites, experienced persons in the field, etc. would be very welcome.
Tom
2009 Sep 04
3
eps file with embedded font
Dear list,
I am trying to make eps file with embedded font.
I use:
postscript("ranking-exp-all.eps", horizontal=TRUE, onefile=FALSE,
paper="special", height=8, width=12, family="Helvetica")
# plot stuff
dev.off()
since R does not embed font, I then use:
embedFonts(file="indegdistr.eps", outfile="indegdistrEMB.eps",
2008 Nov 30
1
barplot labels
Dear List,
is it possible to plot vertical labels under vertical bars? for
vertical labels I mean to rotate 90 degrees horizontal labels
I suppose yes, because if excel can do this, R should do it twice
better...
thank you,
Simone