Displaying 20 results from an estimated 30000 matches similar to: "Why can't "apply" be used with "as.factor" on a data.frame ?"
2010 Nov 08
3
Help with getting ?match to not sort
Hello all,
I think I am missing something about the sorting parameter in the "match"
command/
Here is an example:
a1 <- data.frame(name = c("D", "B", "C", "A", "A", "C"))
a2 <- data.frame(name = c("A", "B", "C", "D"), num = 1:4)
a1
a2
merge(a1, a2, sort = F, by.x = T)
The
2012 Jan 30
1
Getting htmlParse to work with Hebrew? (on windows)
Hello dear R-help mailing list.
I wish to be able to have htmlParse work well with Hebrew, but it keeps to
scramble the Hebrew text in pages I feed into it.
For example:
# why can't I parse the Hebrew correctly?
library(RCurl)
library(XML)
u = "http://humus101.com/?p=2737"
a = getURL(u)
a # Here - the hebrew is fine.
a2 <- htmlParse(a)
a2 # Here it is a mess...
None of
2009 Nov 18
2
Importing tRNA data into R ?
Hello dear R help group,
I would like to download the tRNA data on:
http://gtrnadb.ucsc.edu/download.html
And then import it into R.
Can anyone direct me as to how to do so?
Thanks,
Tal
----------------------------------------------
My contact information:
Tal Galili
E-mail: Tal.Galili@gmail.com
Phone number: 972-52-7275845
FaceBook: Tal Galili
My Blogs:
http://www.talgalili.com (Web and
2009 Nov 20
6
How to: highlight R syntax on webpages ?
My question if in the Subject, but if to extend: I am specifically curious
about WordPress blogs. But any solution will give me a lead.
Thanks,
Tal
----------------------------------------------
Contact me: Tal.Galili@gmail.com | 972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com/ (English)
[[alternative HTML version deleted]]
2010 Jan 01
4
How to use read.table with Hebrew column names ?
Hello dear R help group,
I am trying to read a .txt file, with Hebrew column names, while keeping the
column names looking well in R - but without success.
I uploaded an example file to:
http://www.talgalili.com/files/aa.txt
And am trying the command:
read.table("http://www.talgalili.com/files/aa.txt", header = T, sep = "\t")
This returns me with:
X.....ª X...ª......
2010 May 06
2
Data frame "pivoting"
Dear R experts,
I am trying to solve this problem, related to the possibility of
changing the shape of a data frame using a "pivoting-like" function.
I have a dataframe df of observations as follows:
ID VALIDITY YEAR PROPERTY PROPERTY VALUE
A1 2007 P1 V1
A1 2007 P2 V2
A1 2007 P3 V3
A1 2008 P1 V10
A1 2008 P2 V20
A2 2007 P5 V50
A2 2008 P6 V20
A3 2007
2010 May 22
2
Capturing R console output into a file (sink+savehistory ??)
After reading more, I understand I didn't formulate my last question
correctly, so please allow me to rephrase:
What I am looking for is a way to save the R console session output.
That is, a command that would combine the results of using:
?sink # And
?savehistory
My motivation for this is that doing it will allow someone who is a blind
user of R to be able to easily export his results to
2011 Oct 06
4
Mean(s) from values in different row?
Hello:
Is there a way to get a mean from values stored in different rows?
The data looks like this:
YEAR-1, JAN, FEB, ..., DEC
YEAR-2, JAN, FEB, ..., DEC
YEAR-3, JAN, FEB, ..., DEC
What I want is the mean(s) for just the consecutive winter months:
YEAR-1.DEC, YEAR-2.JAN, YEAR-2.FEB
YEAR-2.DEC, YEAR-3.JAN, YEAR-3.FEB
etc.
Thanks.
2011 Apr 18
2
Windows 7, update.packages problem: "unable to move temporary installation"?
Hello all,
I am using R 2.13.0 with windows 7, after giving my user full privileges to
the R folder (as described
here<http://www.r-statistics.com/2011/04/how-to-upgrade-r-on-windows-7/>
).
This allows me to install new packages just fine.
However, when using update.packages(), to update existing packages, I keep
getting the following error (for example, when updating the MASS package):
2011 Dec 29
3
Is it possible to "right align" text in R graphics?
Hello all,
The following line of code includes a right-to-left language text, yet the
R graphics engine displays it from left to right. One problem this causes
is when there are parenthesis in the test, here is a basic example?
plot(1:10, main = "שלום (טקסט)")
Is there a way to make sure the text is displayed from right to left?
Many thanks for any suggestions,
Tal
2010 Jul 02
3
Combining several plots besides a dendrogram?
Hello all,
I would like to recreate the plot shown here (from a useR 2009
presentation):
http://www.agrocampus-ouest.fr/math/useR-2009/abstracts/pdf/Hocking.pdf
I downloaded the code for that image, and discovered that it relies on
external web services, and also having PERL installed on the computer.
I believe this could be done "locally" using the "seqLogo"
2010 Nov 25
3
Is there an implementation for "URL Encoding" (/format) in R?
Hello all,
I would like some R function that can translate a string to a "URL encoding"
(see here: http://www.w3schools.com/tags/ref_urlencode.asp)
Is it implemented? (I wasn't able to find any reference to it)
Thanks,
Tal
----------------Contact
Details:-------------------------------------------------------
Contact me: Tal.Galili@gmail.com | 972-52-7275845
Read me:
2010 Jan 21
2
"stack imbalance in ..." when loading a workspace
Hi all,
I just failed in loading a saved wordspace (13MB of size), and received
these errors:
Warning: stack imbalance in 'missing', 52 then 51
Warning: stack imbalance in 'if', 50 then 53
Warning: stack imbalance in 'as.environment', 57 then 59
Warning: stack imbalance in 'ls', 54 then 53
Warning: stack imbalance in '.Internal', 54 then 53
Warning: stack
2010 Nov 09
3
Is there a way to have 'comment' keep a list?
Hello all,
I recently discovered the "comment" command.
I see it can only hold a vector of characters.
Is there a way (or an alternative), to make it possible to have it keep a
list?
(for example, to keep different pieces of information like date of creation,
information of each variable and so on)
The closest solution I can think of is using 'names' on the vector, like
this:
2009 Oct 14
2
Scatter plot using icons (from a gif) instaed of points - is it possible ?
Hello dear R-help group.
I wish to plot a scatter plot using icons (or images) instead of points.
Is it possible? and how so?
Thanks,
Tal
----------------------------------------------
My contact information:
Tal Galili
E-mail: Tal.Galili@gmail.com
Phone number: 972-52-7275845
FaceBook: Tal Galili
My Blogs:
http://www.talgalili.com (Web and general, Hebrew)
http://www.biostatistics.co.il
2011 Dec 02
2
Unexplained behavior of level names when using ordered factors in lm?
Hello dear all,
I am unable to understand why when I run the following three lines:
set.seed(4254)
> a <- data.frame(y = rnorm(40), x=ordered(sample(1:5, 40, T)))
> summary(lm(y ~ x, a))
The output I get includes factor levels which are not relevant to what I am
actually using:
Call:
> lm(formula = y ~ x, data = a)
> Residuals:
> Min 1Q Median 3Q Max
>
2012 Feb 03
2
Is the link to the R wiki down?
I am getting a 404 page for this:
http://wiki.r-project.org/
I was not sure who to write this to - so I am writing it here.
Best,
Tal
----------------Contact
Details:-------------------------------------------------------
Contact me: Tal.Galili@gmail.com | 972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
2010 Apr 26
1
Why am I getting different results from cor VS ccf ?
Hi all,
I am getting different results from ccf and cor,
Here is a simple example:
set.seed(100)
N <- 100
x1 <- sample(N)
x2 <- x1 + rnorm(N,0,5)
ccf(x1,x2)$acf[ccf(x1,x2)$lag == -1]
cor(x1[-N], x2[-1])
Results:
> ccf(x1,x2)$acf[ccf(x1,x2)$lag == -1]
[1] -0.128027
> cor(x1[-N], x2[-1])
[1] -0.1301427
Thanks,
Tal
----------------Contact
2010 Nov 20
1
Where can I find a working libeay32.dll file for RCurl ?
Hi all,
I was trying to run the latest version of RCurl on windows 7 with R 2.12 and
got a "missing libeay32.dll" error.
I now downloaded such a file from here:
http://code.google.com/p/aion-inside/source/browse/trunk/out/libeay32.dll?spec=svn10&r=10
And placed it in the system32 folder.
Now I get the following error:
"The procedure entry point EVP_md2 could not be located in
2011 Sep 20
2
The CRAN packages webpages are not found
I am not sure who to send this to - so I am writing this here.
It seems that the "index.html" pages on CRAN are gone.
For example:
http://cran.r-project.org/web/packages/ggplot2/index.html
Is gone. But the directory is accessible:
http://cran.r-project.org/web/packages/ggplot2/
Who should this be forwarded to?
Cheers,
Tal
----------------Contact