Have a look at the littler.
http://dirk.eddelbuettel.com/code/littler.html
On Sun, Sep 29, 2013 at 3:36 AM, Tomek R wrote:
> Hi,
> I have found myself often doing simple statistical analysis using Linux
> command line on a single dataset. Therefore, I put a perl script together,
> which makes
FSelector
Maybe chi-sq is a good starting point.
On Wed, Mar 13, 2013 at 2:02 PM, Venkata Satish Basva
wrote:
> Hi,
> I am doing a project on authorship attribution, where my term document
> matrix has around 10450 features.
> Can you please suggest me a package where I can find the feature sele
One approach is to build an agent to play the game repeatably and then
calculate the winning odds if a particular card is played.
The logical first step is to implement a playable version of the game using R.
http://www.personeel.unimaas.nl/g-chaslot/papers/ACGSzitaChaslotSpronck.pdf
On Mon, Mar
?which.max
On Fri, Jan 11, 2013 at 7:59 AM, ej wrote:
> apply(m, 1, max)
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide comment
I guess you are using Arch.
I think it might be related to the fonts. Try to install good Chinese
font such as ttf-wqy-zenhei. In my (debian) system, I have only
installed this font and it plots in R without hiccups.
On Wed, Oct 17, 2012 at 9:45 AM, Manish Gupta wrote:
> Hi,
>
>
> I also did t
Pizza can be ordered from R (fortune 66), why not tts?
Under Debian, I can tts by apt-get install the tts engine espeak and
then use the simple system call under R
> system("espeak", input="hello world, howdy")
On Thu, Oct 4, 2012 at 8:31 PM, Alex Zhang wrote:
> Dear all,
>
> Excuse me for my
I think you have been hit by the problem of high variance. (overfitting)
Maybe you should consider doing a feature selection perhaps using the
chisq ranking from FSelector.
And then training the Naive Bayes using the top n features (n=1 to
200) as ranked by chisq, plot the AUCs or F1 score from b
Learn by solving your own problem.
Break down your [real or toy] problem into solvable subtasks. Find out
how to solve these subtasks using R.
Quick-R is a good reference for task specific information.
http://www.statmethods.net/
On Thu, May 31, 2012 at 5:57 AM, arun.gurubaramurugeshan
wrote:
Dear All,
The following code illustrate the problem.
[R code]
require(tm)
exampledoc <- c("R is good", "R is really good")
examplecorpus <- Corpus(VectorSource(exampledoc), encoding = "UTF-8")
dtm <- DocumentTermMatrix(examplecorpus, control = list(minWordLength = 1))
as.matrix(dtm)
[/R code]
Th
Dear R users in Hong Kong,
Please join the HKRUG and we are organizing our 1st meeting.
https://groups.google.com/d/forum/hkrug
Thank you.
CH
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R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting
This is one solution
?sapply
sapply(data.frame(iris$Sepal.Length, iris$Sepal.Width,
iris$Petal.Length, iris$Petal.Width), function(x)
(summary(aov(x~iris$Species
On Tue, Oct 11, 2011 at 5:10 PM, Joshua Wong wrote:
> Hi Guys,
>
> I have about 20 continous predictors and I want to do one-wa
Dear R experts,
Suppose I have an data frame likes this:
> example <- data.frame(age=c(1,2,3, 4,5,6), height=c(100,110,120,130,140,150),
> disease=c(TRUE, TRUE, TRUE, FALSE, FALSE, FALSE))
> example
age height disease
1 1100TRUE
2 2110TRUE
3 3120TRUE
4 4130
Dear all,
Suppose I have a data frame like this:
[code]
var1 <- c(1,999,2)
var2 <- c(999,1,2)
var3 <- c(1,2,999)
example <- data.frame(var1,var2,var3)
[/code]
I want to replace all 999 to NA in all observations in all columns. I
know how to do it in each individual column.
[code]
example$var1[e
Dear R experts,
I remember a similar function existed and have been mentioned in
R-help before. I tried my best to search but I really can't find it
out.
suppose I have an data frame like this:
> somedata <- data.frame(age.min = 1, age.max = 1.5, male = TRUE, l = -1.013,
> m=16.133, s=0.07656)
ahn wrote:
> Hi,
> I don't understand what is being plotted here. Can you describe what
> you want in more detail?
>
> Best,
> Ista
>
> On Tue, Mar 8, 2011 at 7:27 AM, C.H. wrote:
>> Dear R Users,
>>
>> I would like to know is there any package to creat
Dear R Users,
I would like to know is there any package to create a plot like this?
http://dl.dropbox.com/u/5409929/cs1160521f01.gif
X axis is categorical. And the positions of the points are
corresponding to the frequency. (similar to violinplot)
Thank you.
Regards,
CH
--
CH Chan
Dear R users,
Suppose I have an vector like this:
animal <- c("Tiger","Panda")
I would like to know is there any function that check for the
existence of certain item in a vector.
e.g.
> func("Tiger",animal) # check for the existence of "Tiger"
TRUE
> func("Acacia",animal) #Acacia is not an i
http://r-forge.r-project.org/projects/tuner/
On Mon, Sep 20, 2010 at 8:35 AM, Deb Midya wrote:
> Hi R Users,
>
> Thanks in advance.
>
> I am using R-2.11.1 on Windows XP.
>
> May I request you to assist me for the following please.
>
> 1. Is there any R-package or if any to compose music?
Dear R users,
I have a very simple question and I've tried to search for the answer.
(But failed.)
there should be a function (func) that work like
> abc <- c(1,2,3,4)
> func(abc)
"abc"
I would like to know the name of that function. Thank you very much
for your help.
Regards,
CH
--
CH Chan
Have a look at deducer.
http://www.deducer.org/manual.html
On Sat, Sep 4, 2010 at 12:20 PM, Soumen Pal wrote:
> Hi,
>
> I am a beginner in R. I have a query as below:
>
> Is it possible to develop a Windows based statistical software
> (user-friendly) like SPSS using R as a programming languag
Dear all,
I have a question regarding the odfweave. I created an odt file
(test_input.odt) using OO.o for WIndows XP. The code is generic.
Code for odt ---
\Sexpr{dim(iris)[1]}
<>=
odfItemize(levels(iris$Species))
@
Table 1:
<>=
data.frame(N =tapply(iris$Petal.Length, iris$Speci
The correct command for forest plot should be "plot" (instead of
"forest") if you are using metagen from meta package.
For help:
?plot.meta
On Tue, Aug 24, 2010 at 11:03 AM, zhangweiwei wrote:
>
> Dear Sir or Madam,
>
>
>
> I am trying to plot forest plot. I extracted odds ratio and their
> co
Dear R users in Hong Kong,
Hello. Any HK R users in HK would like to organize a regular users'
group meeting like LA, NY, London, Osaka... etc ? Maybe some
demonstrations, lightning talks, beginner tutorials. Thanks.
Regards,
CH
--
CH Chan
__
R-help
?polr of the MASS package.
On Mon, Mar 29, 2010 at 10:39 AM, Ravi Kulkarni wrote:
>
> How do I use the "extra" information that two of my predictors are ordinal?
> (I did not know I could do that.)
>
> Thanks,
> Ravi
> --
> View this message in context:
> http://n4.nabble.com/Coding-of-categor
pwr package:
ES.h and ES.w1, ES.w2, cohen.ES
On Wed, Mar 17, 2010 at 1:28 PM, Jim Silverton wrote:
> Hello,
> I would like to find out how to use R to compute the effect size of two
> samples for a two sample t test. Is there a formula for the fisher's exact
> test? Any R code and/or formula w
d, Feb 24, 2010 at 11:40 PM, C.H. wrote:
>> Dear R helpers,
>>
>> I have a question regarding wordpress and R. I have asked this
>> question in Wordpress support (
>> http://wordpress.org/support/topic/368312 ) but there is no answer so
>> far, maybe the R commun
Dear R helpers,
I have a question regarding wordpress and R. I have asked this
question in Wordpress support (
http://wordpress.org/support/topic/368312 ) but there is no answer so
far, maybe the R community can have a better answer.
I followed the excellent tutorial on r-statistics-blog (
http:/
This one does required the metafor package.
http://tables2graphs.com/doku.php?id=04_regression_coefficients
On Mon, Dec 14, 2009 at 8:13 AM, Kim Jung Hwa wrote:
> Hi All,
>
> I'm fitting a Poisson regression. And I want to plot 95% Confidence Interval
> of Regression Estimates.
>
> After comin
The plot function in meta (not rmeta) can specify xlim.
http://cran.r-project.org/web/packages/meta/index.html
Regards,
CH
On Tue, May 12, 2009 at 9:08 AM, Waverley wrote:
> Hi,
>
> I am using rmeta forestplot function. The values to plot and their
> 95% upper and lower are of both positive
There is a book on data manipulation using R.
Data manipulation with R.
http://www.springer.com/statistics/computational/book/978-0-387-74730-9
It highlighted how comprehensive the data manipulation capabilities of R can be.
Regards,
CH
On Wed, May 6, 2009 at 10:01 PM, Simon Pickett wrote:
You may refer to the R News article on qcc package by Scrucca.
http://cran.r-project.org/doc/Rnews/Rnews_2004-1.pdf
On Wed, Apr 22, 2009 at 4:00 AM, Erin Hodgess wrote:
> Dear R People:
>
> Is there a Quality Control in R book that would be accessible for
> undergraduates, please?
>
> I'm teac
I tried the OpenEpi, the p-value of 1.25 is due to the fact that the
one tailed p-value is 0.62. The two tailed p-value then is 0.62 * 2 =
1.25. OpenEpi is not clever enough to ceiling the p-value to 1.
CH
On Sun, Mar 22, 2009 at 3:43 AM, David Winsemius wrote:
> Let me ask you: What degree of c
Dear experts,
I would like to know how to plot the log-minus-log plot for survival
analysis (to check the proportional assumption) in R.
Using the AML example.
fit <- survfit(Surv(time, status) ~ x, data=aml)
length(fit$surv) #20
as the length of fit$surv is shorter than aml$x and aml$time. I d
Aquamacs preinstalled ess-mode.
http://aquamacs.org/
On Fri, Nov 28, 2008 at 11:57 PM, Blanchette, Marco
<[EMAIL PROTECTED]> wrote:
> Carbon emacs ( http://homepage.mac.com/zenitani/emacs-e.html) using the
> ess-mode ( http://ess.r-project.org/). Amazingly good integration of
> different buffe
Actually, SPSS do have condition LR which can be simulate using Cox
Proportional Hazards regression.
For R, Conditional LR is clogit inside survival package.
?clogit may help.
Regards,
C
On Fri, Nov 28, 2008 at 5:43 PM, amit nirmalkar <[EMAIL PROTECTED]> wrote:
> Dear Sir
>
> I am Amit Nirmal
Are you dealing with some rainfall data for your schoolwork?
Few days ago, somebody asked exactly the same question.
read this one to know how to calculate the H value (An Alternative
Formula for the Calculation of H)
http://faculty.vassar.edu/lowry/ch14a.html
You can calculate the rank by rank()
For the third one:
?anova.glm
test=Chisq will be LRT.
For the first two, you can have the answer from ordinary stat book.
On Wed, Nov 5, 2008 at 1:11 PM, Maithili Shiva <[EMAIL PROTECTED]> wrote:
> Hi!
>
> I am working on the Logistic Regression using R. My R script is as follows
>
>
> ONS <-
Because your test statistics (z=-9.16) is too small. (well, z> 1.96 or
Z < -1.96 is p=0.05)
If you really want the exact p, you can try
pnorm(-9.16)
if I were you I will quote p<0.001 as well as the test statistics. (if
you are going to submit it to medical journals)
C
On Thu, Oct 30, 2008 at 1
Dear R Gurus,
I have a problem related to plot.
For example, I have two variables, pre and post.
pre <- c(1,2,3,4,5)
post <- c(2,5,7,2,3)
How can I plot a line graph similar to this one?
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1847566&rendertype=figure&id=F1
Would you please
Use a smaller alpha value rather than 0.05.
C
On Thu, Aug 14, 2008 at 10:14 AM, Mark Home <[EMAIL PROTECTED]> wrote:
> Dear All:
>
> I have a clinical study where I would like to compare the demographic
> information for 2 samples in a study. The demographics include both
> categorical and con
You may consider the nortest package.
http://cran.r-project.org/web/packages/nortest/index.html
Regards,
CH
On Sat, Jul 12, 2008 at 11:30 PM, Bunny, lautloscrew.com
<[EMAIL PROTECTED]> wrote:
> Hi everybody,
>
> somehow i dont get the shapiro wilk test for normality. i just can´t find
> what th
abc <- glm(x~y)
summary(abc)
On Wed, Mar 19, 2008 at 11:51 AM, Alex Wang <[EMAIL PROTECTED]> wrote:
> Hello all,
>
> I have a question concerning how to get the P-value for a explanatory
> variables based on GLM.
>
> I'll run multiple regressions with GLM, and I'll need the P-value for the
>
Not particularly R related, but r related.
For pearson correlation, the test statistics is based on t distribution.
ts = r * sqrt ((n-2)/(1-r^2))
with n-2 degree of freedom.
I think you can solve this question, maybe a little bit of googling.
On Jan 14, 2008 1:39 PM, Sanglamt <[EMAIL PROTECTE
One simple reason: graphic.
On Jan 5, 2008 5:23 AM, Liviu Andronic <[EMAIL PROTECTED]> wrote:
> On 1/4/08, Alberto Monteiro <[EMAIL PROTECTED]> wrote:
> > I need arguments pro-S-PLUS and against SAS for a meeting I will
> > have next week. S-Plus is (90 - 99)% compatible with R, so using
> > S-Pl
You can using the default Linux (Xandros, Debian Based) and enable
Debian Etch Repo in eeepc to install R via apt-get.
http://lnxg.ca/?Hardware:Asus_Eeepc_701:EeePC_Tips
I can install R, LaTeX.
Regards,
C
On Dec 17, 2007 4:37 AM, Gabor Csardi <[EMAIL PROTECTED]> wrote:
> You can easily install
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