Dear Sir/Madam
it is my the first time in using R-help center.
I would like to know how can I install DEA package on my R program.
moreover, is there any example of using R for calculating Malmquist?
and should I necessarily install DEA package for that reason?
I have some problems in importing my
1) The DEA package appears to have been removed from CRAN in 2008, so
it is not likely to be readily available. Old versions are available
from the CRAN archives though but I don't imagine you'll get much
support if you try to use them:
ftp://cran.r-project.org/pub/R/src/contrib/Archive/DEA/
2)
On Feb 15, 2012, at 7:19 AM, R. Michael Weylandt wrote:
Sorry about that -- forgot the case where you might only have a
certain entry once: try this,
sapply(split(GS, rownames(GS)), function(x) colSums(as.matrix(x)))
or
sapply(split(GS, rownames(GS)), function(x) if(is.matrix(x))
But that's dropping unused factor levels, not the drop of `[`
Michael
On Wed, Feb 15, 2012 at 9:16 AM, David Winsemius dwinsem...@comcast.net wrote:
On Feb 15, 2012, at 7:19 AM, R. Michael Weylandt wrote:
Sorry about that -- forgot the case where you might only have a
certain entry once:
On Feb 15, 2012, at 15:17 , R. Michael Weylandt wrote:
But that's dropping unused factor levels, not the drop of `[`
Is there a good reason that nobody has suggested looking at aggregate()? There
would seem to be a little red tape to sort out, but, I mean, this is generally
speaking what
On 02/14/2012 06:19 AM, Michael Methlagl wrote:
Hi everybody,
i made a scatterplot using the command
plot (datafile1, xlim=c(0,10), ylim=c(0.001, 1), log=y, xlab=x Achse, ylab=y
Achse, frame.plot=FALSE, axes = TRUE).
Now i have a problem. There is a gap between the x and the y axis. I want
I have this matrix in R,
s1 s2 s3 s4
g1 1 0 0 0
g1 0 1 0 0
g1 0 0 1 0
g2 1 0 0 0
g2 0 1 0 0
g3 1 0 0 0
g4 0 0 1 0
g4 1 0 0 0
g4 0 1 0 0
g4 0 0 0 1
I want to split this matrix based on its rows then sum based on columns,
finally I want to make this
Perhaps something (untested) like
sapply(split(x, rownames(x)), colSums)
Next time it's suggested you use dput() to send your data.
Michael
On Tue, Feb 14, 2012 at 7:08 AM, Soheila Khodakarim
lkhodaka...@gmail.com wrote:
I have this matrix in R,
s1 s2 s3 s4
g1 1 0 0 0
g1 0 1 0
Hi everybody,
i made a scatterplot using the command
plot (datafile1, xlim=c(0,10), ylim=c(0.001, 1), log=y, xlab=x Achse,
ylab=y Achse, frame.plot=FALSE, axes = TRUE).
Now i have a problem. There is a gap between the x and the y axis. I want that
the x and y axis cut at 0 and 0.001 without
Dear All
This is the first time I use this help forum. My apologies in case I did
not follow a predefined format.
My question:
I use the package hwriter.
How can I produce a matrix (html) that allows scrolling (up and down,
left and right) or, alternatively, prduces a fixed row for the
Hello All,
I have a question about measurement invariance in a multigroup SEM. I am of the
impression that one cannot test the equality of structural paths across groups
without demonstrating measurement invariance of latent factors first. At a
minimum, this would involve demonstrating that
Suppose I have two data frames A and B
A has three variables and B also has three variables.
I would like to merge these two database but the requirement to merge
is that the value of the second column in database A is less than the
value of the second column in database B. Is there a R code to do
Hi there,
The command for merging is:
merge
Can you please clarify by which variable you wish to merge by?
Can you maybe use ?dput function in order to give a self contained R code
example of your data - and the output you wish to get?
Best,
Tal
Contact
On Tue, Jan 31, 2012 at 2:24 PM, Tal Galili tal.gal...@gmail.com wrote:
Hi there,
The command for merging is:
merge
A fortunes candidate?
-- Bert
Can you please clarify by which variable you wish to merge by?
Can you maybe use ?dput function in order to give a self contained R code
I am having trouble generating a graph.
I want to know the % of respondents who answered that they strongly
agree or agree the America owes R's ethnic group a better chance
(BTTRCHNC) and I want to organize it by racial group (RACESHRT).
BTTRCHNC is organized ordinally from 1 through 5 with
Without knowing more about what you are trying to accomplish, and what
you have tried so far (code) it's difficult to say. But I'll venture
this: are you sure you need a graph? Seems like a table might suffice.
BT - sample(1:5, 50, replace=TRUE)
RA - sample(1:5, 50, replace=TRUE)
table(BT)
On 02/01/2012 08:13 AM, Rebecca Lisi wrote:
I am having trouble generating a graph.
I want to know the % of respondents who answered that they strongly
agree or agree the America owes R's ethnic group a better chance
(BTTRCHNC) and I want to organize it by racial group (RACESHRT).
BTTRCHNC is
Greetings
On Sat, Jan 28, 2012 at 2:43 PM, Daniel Negusse
daniel.negu...@my.mcphs.edu wrote:
while reading some tutorials, i came across this and i am stuck. i want to
understand it and would appreciate if anyone can tell me.
design - model.matrix(~ -1+factor(c(1,1,2,2,3,3)))
can
I am new to this group - joined today. I am in because i have an assignment
to do using R = microarray analysis using affy (bioconductor).
while reading some tutorials, i came across this and i am stuck. i want to
understand it and would appreciate if anyone can tell me.
design -
Hello,
I have a dataset which I am calling RB09.
I am trying to match the questions in the code book with variable codes.
It is not very intuitive.
example:
names(RB09)
[1] ea1eaf1 eaf1a eaf2 eaf2_7
[6] eaf3 eafimpun eafunpun evimpmar evfutpro
Perhaps I'm misunderstanding you, but it doesn't sound like this is
much of an R question at all: what is the code book? If it's an
actual (dead tree) book, I don't think there's much you can do in R to
automate identifications; if it's an online API, you *might* be able
to rig a matching
- Original Message -
From: R. Michael Weylandt michael.weyla...@gmail.com
To: Nicole Marie Ford nmf...@uwm.edu
Cc: r-help r-help@r-project.org
Sent: Sunday, January 29, 2012 9:51:37 PM
Subject: Re: [R] question about ... questions/ code
Perhaps I'm misunderstanding you, but it doesn't
We were looking at conducting a pilot program with Dell to virtualize our lab
environments. We are specifically looking at Dell/Citrix provisioning servers.
The OS in this setup is streamed from the server on every boot. I was curious
if the R Project had any licensing stipulations in this
On Jan 24, 2012, at 11:17 AM, Taylor, Brian wrote:
We were looking at conducting a pilot program with Dell to virtualize our lab
environments. We are specifically looking at Dell/Citrix provisioning
servers. The OS in this setup is streamed from the server on every boot. I
was curious
Hcan you give session info (after loading playwith)? I'm able
to get that code to work...also -- can you get the basic RGtk
functions (like gwindow() ) to work?
Michael
On Thu, Jan 19, 2012 at 5:28 PM, Farhat Maha mar...@gmail.com wrote:
Hello, I managed to install playwith package and
Thanks for your reply Michael,
gwindow() command does work. and here is my sessionInfo
gwindow()
guiWidget of type: gWindowRGtk for toolkit: guiWidgetsToolkitRGtk2
*(opens a window)*
sessionInfo()
R version 2.14.1 (2011-12-22)
Platform: i486-pc-linux-gnu (32-bit)
locale:
[1]
I can't replicate the problem on my system (OS X) and I don't know
enough about the Gtk + tcltk frameworks to help diagnose it outside of
R -- it might be worth working up a minimal (non-)working example
along the lines of:
michaelweylandt$ R --vanilla
library(playwith)
playwith(plot(1:10))
Hello, I managed to install playwith package and all its prerequisites. My
R version is R 2.14:
R version 2.14.1 (2011-12-22)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)
All my packages were updated, and recently
Hi
Hi,
I am creating a function and ran into the problem of selecting a column
from a dataset. It seems as though the $ function (as in
data$columnname)
does not apply in the function. In simplified version:
This works:
testf2-function(data,columnnumber){print(data[,columnnumber])}
Hi,
I am creating a function and ran into the problem of selecting a column
from a dataset. It seems as though the $ function (as in data$columnname)
does not apply in the function. In simplified version:
This works:
testf2-function(data,columnnumber){print(data[,columnnumber])}
But this
Just put the columnname variable into the brackets as well: they
accept strings.
As a general rule, always use the brackets (single or double) when
programming: `$` has some great features for interactive use but can
bite if you're not careful.
Michael
On Fri, Jan 13, 2012 at 5:34 PM, Julia
Dear Sir/Madam,
I want to download R development version 2.15.0 source code. But I just found
the version for windows and MacOS. So would you please give me some instruction
about how can I download the R 2.15.0 source code? Thank you very much for you
help!
Best,
Jing Wang
On 10/01/2012 11:31 AM, Wang, Jing wrote:
Dear Sir/Madam,
I want to download R development version 2.15.0 source code. But I just found
the version for windows and MacOS. So would you please give me some instruction
about how can I download the R 2.15.0 source code? Thank you very much for
Hi
[R] question about rev
Hi,all:
I have a vector,and wanna get the opposite value via rev function.
a
[1] FALSE FALSE TRUE TRUE TRUE
rev(a)
[1] TRUE TRUE TRUE FALSE FALSE
I don't know why the 3rd TRUE has not been reversed,while all other
values are reversed
Yes£¬I find out later.
rev is only reverse the order.
What I use is !
Thanks
At 2012-01-06 16:07:11,Petr PIKAL petr.pi...@precheza.cz wrote:
Hi
[R] question about rev
Hi,all:
I have a vector,and wanna get the opposite value via rev function.
a
[1] FALSE FALSE TRUE TRUE
the function /rev / REVERSEs the order of the vector, as
v= c(1,2,3)
rev(v)= 3,2,1
if you want the opposite value , just add a exclamation in front of the
vector:
v=c(T,F,T,T);
!v is F,T,F,F
--
View this message in context:
http://r.789695.n4.nabble.com/question-about-rev-tp4268518p4268716.html
Hi,all:
I have a vector,and wanna get the opposite value via rev function.
a
[1] FALSE FALSE TRUE TRUE TRUE
rev(a)
[1] TRUE TRUE TRUE FALSE FALSE
I don't know why the 3rd TRUE has not been reversed,while all other values
are reversed?
Thanks
My best
[[alternative
Hi,
I am trying to use the system2 function to execute external
applications(actually it is psql) inside R 2.14.0 on X64 Windows, but
the psql command has escape character inside it's full command line,
can you help to figure out the correct parameters for the system2
function,
The working
Dear list
I have a matrix such as the following:
1 0,5
1 0.7
1 0.5
2 1
3 0
4 0.2
I'd like to plot the histogram of the first column (this is very easy) and
then for each bin of the obtained histogram to plot another histogram on
the z-axis of the frequencies of the second column for the values
Dear R users,
I know that it was considered many times but having searched through dozens
of posts I have only added to my confusion. My question is - is it possible
to correctly analyse simple mixed (fully)crossed (factorial) 2-way ANOVA?
Assume we have factor A (fixed) and B (random). In the
Hi all,
I just couldn't find a R function which can fit multiple seasonal
patters... i.e. in the following code:
*arima(x = data, order = c(p, d, q), seasonal = list(order = c(P, D, Q),
period = S), ...
***
*
there can be only one period, am I right?
What if the data seem to have three
sorry for the re-post...
On Sun, Dec 11, 2011 at 8:22 PM, Michael comtech@gmail.com wrote:
Hi all,
I just couldn't find a R function which can fit multiple seasonal
patters... i.e. in the following code:
*arima(x = data, order = c(p, d, q), seasonal = list(order = c(P, D, Q),
period
Hi
First of all, it's R, not r, and on this mailing list people care about
this kind of thing.
Second, you will need to provide more information in order to get better
help. Please read the posting guide.
There are a number of introductory level documents available via CRAN,
please
Hello,
I have a linear model with 10 regressors, and summary() gives me
F-statistics. After deleting a term with smallest p-value the new
model was obtained with F-statistics higher then it was for full
model. Does this mean that parsimonius model is better? The
distributions of dependent variable
This is not a statistical help list. Post to stats.stackexchange.com
or a similar list to have someone tutor you in regression and explain
why what you are doing is likely to produce utter nonsense.
Or, better yet, get local statistical help in person. You also clearly
need to do some reading on
Hello,
I would like to please ask if someone would explain how r reads characters
and numbers differently. Using read.csv, I had a matrix that resembled the
following, only with many more ids and data:
ID
Visit
variable
2
1
5
2
1
3
2
3
4
2
41
1
2
42
34
2
5
54
2
9
1
2
First of all, it's R, not r, and on this mailing list people care about
this kind of thing.
Second, you will need to provide more information in order to get better
help. Please read the posting guide.
There are a number of introductory level documents available via CRAN,
please pick one and
Vytautas Rakeviius vytautas1...@yahoo.com writes:
But still I have question about results interpretation. In the end I
want to construct prediction function in form:
Y=a1x1+a2x2
The predict() function does the prediction for you. If you want to
construct the prediction _equation_, you can
Hi,
With some help I learned how to use plsr(Y~x, 2, data=my) function in R (and
build my from vector Y and matrix x).
But still I have question about results interpretation. In the end I want to
construct prediction function in form:
Y=a1x1+a2x2
But I do not understand how to do it.
-project.org
Subject: Re: [R] Question about randomForest
Matthew,
Your intepretation of calculating error rates based on the training
data is incorrect.
In Andy Liaw's help file err.rate-- (classification only) vector
error rates of the prediction on the input data, the i-th element
being
Thanks for the help. Let me explain in more detail how I think that
randomForest works so that you (or others) can more easily see the
error of my ways.
The function first takes a random sample of the data, of the size
specified by the sampsize argument. With this it fully grows a tree
resulting
I am pretty sure that when each tree is fitted the error rate for tree 'i' is
it's performance on the data which was not used to fit the ith tree (OOB). In
this way cross validation is performed for each tree but I do not think that
all trees fitted prior are involved in the computation of that
Matthew,
Your intepretation of calculating error rates based on the training
data is incorrect.
In Andy Liaw's help file err.rate-- (classification only) vector
error rates of the prediction on the input data, the i-th element
being the (OOB) error rate for all trees up to the i-th.
My
I've been using the R package randomForest but there is an aspect I
cannot work out the meaning of. After calling the randomForest
function, the returned object contains an element called prediction,
which is the prediction obtained using all the trees (at least that's
my understanding). I've
Hi Matthew,
The error rate reported by randomForest is the prediction error based
on out-of-bag OOB data. Therefore, it is different from prediction
error on the original data since each tree was built using bootstrap
samples (about 70% of the original data), and the error rate of OOB is
likely
On Thu, 24 Nov 2011, Andreas Klein wrote:
Hello,
I am a little bit confused regarding the density values obtained
from the function kde2d() from the package MASS because the are not
in the intervall [0,1] as I would expect them to be. Here is an
Your expectation is wrong.
example:
x -
Hello,
I am a little bit confused regarding the density values obtained from the
function kde2d() from the package MASS because the are not in the intervall
[0,1] as I would expect them to be. Here is an example:
x -
Hi, I am working with R on a Mac. I need to use a couple of packages that I
found on the Web site. I install them using Packages and Data: Package Manager.
I leave R and come back another time and the installed packages are not
installed. So I do it again. Not a big deal, but is there anyway to
I don't really know about the second half of your email, but are you sure you
don't just need to reload the packages with the library() command rather than
reinstalling them?
It's also to set up autoload: google Rprofile for instructions.
Michael
On Nov 18, 2011, at 3:52 PM, Roger Coupal
On Nov 18, 2011, at 3:52 PM, Roger Coupal wrote:
Hi, I am working with R on a Mac. I need to use a couple of packages
that I found on the Web site. I install them using Packages and
Data: Package Manager. I leave R and come back another time and the
installed packages are not installed.
Hello,
I need to analyse an experiment with 3 groups:
Control group
Treated group 1 (drug 1)
Treated group 2 (drug 2)
If I use a Kruskal-Wallis test do analyse the data and if I define the
control group as the reference group does the test do then the following
comparisons?
Control group vs.
On Nov 14, 2011, at 10:49 PM, Miles Yang wrote:
Hi all,
I wrote a r program as below:
x - 1:10
y - c(3,3,3,3,3,3,3,3,3,3)
fit - lm(log(y) ~ x)
summary(fit)
And I expect to get some error message from R, because y is
constant.
But, I got the message as below:
You are asking R to tell
-project.org
Subject: [R] Question about linear regression in R
Hi all,
I wrote a r program as below:
x - 1:10
y - c(3,3,3,3,3,3,3,3,3,3)
fit - lm(log(y) ~ x)
summary(fit)
And I expect to get some error message from R, because y is constant.
But, I got the message as below
Jan Kraner jan.kraner at gmx.ch writes:
Dear Sir/Madam:
Could you please help me with this exercise and how I could solve it in R?:
Attachment (PastedGraphic-1.pdf): application/pdf, 84 KiB
I especially have problems with the selection of the 40 datasets,
once taken the 110 (because
Copying David W from another thread:
We don't do homework here. In fact, your instructor is probably watching.
That said, try googling or, even better, using the rseek search. (Or even
better-er RSiteSearch() in your terminal)
Michael
On Nov 15, 2011, at 4:16 PM, Jan Kraner jan.kra...@gmx.ch
Hi all,
I wrote a r program as below:
x - 1:10
y - c(3,3,3,3,3,3,3,3,3,3)
fit - lm(log(y) ~ x)
summary(fit)
And I expect to get some error message from R, because y is constant.
But, I got the message as below:
summary(fit)
Call:
lm(formula = log(y) ~ x)
Residuals:
Min 1Q
What exactly is it that's worrying you? It's a problematic regression
for a few reasons, but ultimately it seems pretty ok, though I'd be
ever so slightly worried about the R^2 value being misinterpreted.
Michael
On Mon, Nov 14, 2011 at 10:49 PM, Miles Yang miles2y...@gmail.com wrote:
Hi all,
Hi
My name is Rocky and I am trying to use the org.Dm.eg.db library.
When I am using the org.Dm.egFLYBASE2EG[fb_ids] it is stopping at a point where
it cannot find any value for a given ID such as the following:
Error in .checkKeys(value, Rkeys(x), x@ifnotfound) :
value for FBgn0004461 not
I suspect you are lost. This is almost certainly more appropriate on
the BioConductor list. There are relatively few people on this list
who will know what (un-named) packages you might be using. Read the
Posting Guide, note the link to the Bioconductor mailing list page,
configure your
Dear all,
I think that every number x in R can be represented in floating point
arithmetic as:
x = (-1)^s (1+f) 2^(e-1023)
where s is coded on 1 bit, e (positive integer) is coded on 11 bits, and
f (real in [0,1)) is coded on 52 bits.
Am I right?
We have f=\sum_{i=1}^{52} k_i 2^{-i} for
, and Accountability
Research and Data Analysis Division
Olympia, WA 98504-5204
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
project.org] On Behalf Of Lafaye de Micheaux
Sent: Tuesday, November 08, 2011 10:49 AM
To: r-help@r-project.org
Subject: [R] Question
The function of crossprod in R puzzled me.
I would like to calculate the cross product of two vectors. According to my
text book, it defines like this:
a = (ax, ay, az)
b = (bx, by, bz)
then, the cross product of a and b is:
a X b = (ay*bz-az*by, az*bx-ax*bz, ax*by-ay*bz)
It can also write in a
Try
library(pracma)
? cross
Michael Weylandt
On Thu, Nov 3, 2011 at 1:17 AM, 阮铮 rz1...@foxmail.com wrote:
The function of crossprod in R puzzled me.
I would like to calculate the cross product of two vectors. According to my
text book, it defines like this:
a = (ax, ay, az)
b = (bx, by,
The crossprod function in base R implements the MATRIX cross product, more
familiarly known as matrix multiplication.
---
Jeff Newmiller The . . Go Live...
DCN:jdnew...@dcn.davis.ca.us Basics: ##.#. ##.#. Live Go...
On 04/11/11 11:30, Jeff Newmiller wrote:
The crossprod function in base R implements the MATRIX cross product, more familiarly
known as matrix multiplication.
The term crossprod is thereby rather misleading, nicht wahr?
Wouldn't it be *nice* to put into the help file a wee warning telling
21:24
An: Thorsten Vogel
Cc: r-help@r-project.org help
Betreff: Re: [R] Question on estimating standard errors with noisy signals
using the quantreg package
On Oct 31, 2011, at 7:30 AM, Thorsten Vogel wrote:
Dear all,
My question might be more of a statistics question than a question on R
Dear all,
My question might be more of a statistics question than a question on R,
although it's on how to apply the 'quantreg' package. Please accept my
apologies if you believe I am strongly misusing this list.
To be very brief, the problem is that I have data on only a random draw, not
all
On Oct 31, 2011, at 7:30 AM, Thorsten Vogel wrote:
Dear all,
My question might be more of a statistics question than a question on R,
although it's on how to apply the 'quantreg' package. Please accept my
apologies if you believe I am strongly misusing this list.
To be very brief, the
(1,3,4,9,1,9,1,5,4,5,2,1,1,1,6)
Any ideas how to solve this problem?
Cheers, S.B.
-Ursprüngliche Nachricht-
Von: David Winsemius [mailto:dwinsem...@comcast.net]
Gesendet: Donnerstag, 27. Oktober 2011 16:44
An: Duncan Murdoch
Cc: Samir Benzerfa; r-help@r-project.org
Betreff: Re: [R] question R regarding
-project.org
Subject: Re: [R] question R regarding consecutive numbers
In the general case, there is still a gap in your solution sum( tbl[1,
2:ncol(tbl)] ). This solution refers to a specific column number (here:
column number 2) and not to the actual length of the run, doesn't
-project.org
] On Behalf Of Samir Benzerfa
Sent: Friday, October 28, 2011 12:35 AM
To: 'David Winsemius'; 'Duncan Murdoch'
Cc: r-help@r-project.org
Subject: Re: [R] question R regarding consecutive numbers
In the general case, there is still a gap in your solution
sum( tbl[1,
2:ncol(tbl
Hi everyone
Do you know about any possibility in R to check for consecutive numbers in
vectors? That is, I do not only want to count the number of observations in
total (which can be done table(x)), but I also want to count for instance
how many times that vector contains a certain number
On 27/10/2011 8:43 AM, Samir Benzerfa wrote:
Hi everyone
Do you know about any possibility in R to check for consecutive numbers in
vectors? That is, I do not only want to count the number of observations in
total (which can be done table(x)), but I also want to count for instance
how many
On Oct 27, 2011, at 9:21 AM, Duncan Murdoch wrote:
On 27/10/2011 8:43 AM, Samir Benzerfa wrote:
Hi everyone
Do you know about any possibility in R to check for consecutive
numbers in
vectors? That is, I do not only want to count the number of
observations in
total (which can be done
Hi,
My apologies for asking this question, but could not find the answer
elsewhere. I understand the glmnet package uses Fortran code. For example,
the lognet.R file includes the lines of code shown below. But how can I see
the Fortran code that is being referenced in the code below? Is that
It's probably available at CRAN by downloading the package source
here: http://cran.r-project.org/web/packages/glmnet/index.html
Look in the /src/ directory.
Michael
On Wed, Oct 26, 2011 at 9:42 PM, Axel Urbiz axel.ur...@gmail.com wrote:
Hi,
My apologies for asking this question, but could
Hi
I have probably a very simple question but I'm going crazy trying to find
the solution.
I have two data.frames with headers and I'm doing an intersection between
them by names, such that the intersected data.frames are returned by:
df1[intersect(names (df1), names(df2))] and the same
On Oct 25, 2011, at 6:07 AM, Samir Benzerfa wrote:
Hi
I have probably a very simple question but I'm going crazy trying to
find
the solution.
I have two data.frames with headers and I'm doing an intersection
between
them by names, such that the intersected data.frames are returned
Hello,
is there any help please.
Regards
2011/10/21 Adel ESSAFI adeless...@gmail.com
Hello
I am discovering R and I find it is really very powerful.
However, I find some newbie difficulties.
Here, I have a data frame with manu values that I want to calculate the
frequency (the nomber of
try this
table(sci[,2]=0,sci[,1]=L)
Weidong Gu
On Sat, Oct 22, 2011 at 7:51 AM, Adel ESSAFI adel.s...@imag.fr wrote:
Hello,
is there any help please.
Regards
2011/10/21 Adel ESSAFI adeless...@gmail.com
Hello
I am discovering R and I find it is really very powerful.
However, I find
Hi,
It is not what I want, but, thx anyway.
Regards
2011/10/22 Weidong Gu anopheles...@gmail.com
try this
table(sci[,2]=0,sci[,1]=L)
Weidong Gu
On Sat, Oct 22, 2011 at 7:51 AM, Adel ESSAFI adel.s...@imag.fr wrote:
Hello,
is there any help please.
Regards
2011/10/21 Adel
Perhaps I misunderstand your request, but isn't this just:
sum( (sci[,,2]==0L) (sci[,1] ==L))
with the usual floating point caveats.
Michael
On Sat, Oct 22, 2011 at 8:19 AM, Adel ESSAFI adeless...@gmail.com wrote:
Hi,
It is not what I want, but, thx anyway.
Regards
2011/10/22 Weidong Gu
Is this waht you want?
sci[,5][sci[,2]==0 sci[,1]==L]
Weidong
On Sat, Oct 22, 2011 at 8:19 AM, Adel ESSAFI adeless...@gmail.com wrote:
Hi,
It is not what I want, but, thx anyway.
Regards
2011/10/22 Weidong Gu anopheles...@gmail.com
try this
table(sci[,2]=0,sci[,1]=L)
Weidong Gu
NO
aggregate(si[,7],list(si[,2],si[,1]),mean)
Group.1 Group.2 x
1 0.0 D 212.5015448
2 0.2 D 200.5271137
3 0.4 D 191.5387529
4 0.6 D 131.5856218
5 0.8 D 16.4515798
6 1.0 D 0.9698699
7 0.0 F 211.6176036
8
2011/10/22 Adel ESSAFI adel.s...@imag.fr
NO
aggregate(si[,7],list(si[,2],si[,1]),mean)
Group.1 Group.2 x
1 0.0 D 212.5015448
2 0.2 D 200.5271137
3 0.4 D 191.5387529
4 0.6 D 131.5856218
5 0.8 D 16.4515798
6 1.0
Thanks for providing the example data, try this
aggregate(si[,7],list(si[,2],si[,1]),function(x) sum(table(x)))
Weidong
On Sat, Oct 22, 2011 at 9:28 AM, Adel ESSAFI adel.s...@imag.fr wrote:
NO
aggregate(si[,7],list(si[,2],si[,1]),mean)
Group.1 Group.2 x
1 0.0 D
Thank you
I works as I need.
aggregate(tmp[,5],list(tmp[,2],tmp[,1]),function(x) sum(table(x)))
Group.1 Group.2 x
1 0.0 D 100
2 0.2 D 100
3 0.4 D 100
4 0.6 D 72
5 0.8 D 9
2011/10/22 Weidong Gu anopheles...@gmail.com
Thanks for
Hi list
I am discovering R, and
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Hello
I am discovering R and I find it is really very powerful.
However, I find some newbie difficulties.
Here, I have a data frame with manu values that I want to calculate the
frequency (the nomber of line) of the some criteria.
For exemple here, I want it to print the number of occurence
Hello,
I have a big problem which Im just not able to solve.
I created the following mean value from the following dataset structure:
Id |value
1 | 2
1 | 3
1 | 4
2 | 2
2 | 1
3 | 5
4 | 3
etc.|etc.
with the command:
mean_rating - tapply(ratok$value, ratok$project_id ,
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