Re: [R] filtering a dataframe with a vector of rownames

_ > 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 commented, minimal, self-contained, re

[R] Plotting colour-coded points

colour these points according to the data in column b. column b data may be colour coded into the following bins: 0-9; 10-19; 20-29. Any idea on how to accomplish this? TIA, Anjan -- === anjan purkayastha, phd. research associate fas center for systems biology

Re: [R] subset question

nope, that did not work. thanks though. Anjan On Wed, Dec 29, 2010 at 5:02 PM, Jonathan Flowers < jonathanmflow...@gmail.com> wrote: > Try subd <- d[, "gene" == c("i1","i2","i3")] > > On Wed, Dec 29, 2010 at 4:55 PM, ANJAN PURKAYAST

[R] subset question

that those rows exist). So I do this: subset(d, gene %in% c(i1, i2, i3)). This does not give me the required data. Any ideas where I am going wrong? TIA, Anjan -- === anjan purkayastha, phd. research associate fas center for systems biology, harvard university 5

[R] Error message when creating a dataframe

nce, Anjan -- ======= anjan purkayastha, phd. research associate fas center for systems biology, harvard university 52 oxford street cambridge ma 02138 phone-703.740.6939 === [[alternative HTML version deleted]] __ R-help@r-p

[R] One-class SVM

Does any R package support one-class SVM? I'm trying to develop an application to detect anomalies in genome sequencing. Thanks in advance. Anjan -- === anjan purkayastha, phd. research associate fas center for systems biology, harvard university 52 oxford s

Re: [R] Subsetting a dataframe

1111 1 > [2,]111111111 1 > [3,]11 1 11 1111 1 > > > HTH, > Jorge > > > On Sun, Oct 24, 2010 at 1:32 PM, ANJAN PURKAYASTHA <> wrote: > >> Hi, >> I have a d

[R] Subsetting a dataframe

that have only P's in them? Thanks in advance. Anjan -- === anjan purkayastha, phd. research associate fas center for systems biology, harvard university 52 oxford street cambridge ma 02138 phone-703.740

Re: [R] How do I tell whether two vectors are identical?

ailing 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 commented, minimal, self-contained, reproducible code. > -- === anjan purkayastha, phd. r

[R] How do I tell whether two vectors are identical?

Hi, I have two vectors, each of length 45000. How do I compare the vectors to ascertain if they are identical. Secondly if they are NOT identical, how do I determine the indices of positions at which the vectors differ? Thanks, Anjan -- === anjan purkayastha, phd

Re: [R] problem with colors

plot(data,col=colors()[1:47]) > > > > > On Thu, Oct 7, 2010 at 2:22 PM, ANJAN PURKAYASTHA < > anjan.purkayas...@gmail.com> wrote: > >> Hi, >> I have a data set of 47 columns. I would like to create a boxplot for each >> column, each boxplot of a different colour.

[R] problem with colors

to tackle this? Thanks in advance, Anjan -- ======= anjan purkayastha, phd. research associate fas center for systems biology, harvard university 52 oxford street cambridge ma 02138 phone-703.740.6939 === [[alternative HTML version deleted]] ___

[R] Plotting x-axis labels perpendicular to the axis

printed perpendicular to the x-axis? Thanks in advance. Anjan -- === anjan purkayastha, phd. research associate fas center for systems biology, harvard university 52 oxford street cambridge ma 02138 phone-703.740.6939

[R] subsetting

<- subset(r, (r$time == "0h" && r$strain == "ROC"), select= c(time, strain, gene, deltact)) returns an empty data-frame. Is it not possible to subset based on two criteria? TIA Anjan -- ======= anjan purkayastha, phd. research associate

[R] modifying only certain rows in a data-frame

$time == "0h" I would like to convert the present value of r$deltact to 0. Any pointers to a simple method to accomplish would be greatly appreciated. TIA, Anjan -- ======= anjan purkayastha, phd. research associate fas center for systems biology, harvard uni

Re: [R] plotting the following data

; > x <- read.table(textConnection("timef > + 0h0.00 > + 0.5h0.54 > + 1h1.15 > + 2h2.33 > + 4h1.57 > + 6h2.19 > + 18h1.45 > + 24h1.79"), header=TRUE, as.is=TRUE) > > > > plot(x$f, xaxt='n') > > axis(1, at

[R] plotting the following data

Hi, I need to plot $time on the x-axis and $f on the y-axis for the following data: timef 0h0.00 0.5h0.54 1h1.15 2h2.33 4h1.57 6h2.19 18h1.45 24h1.79 I want the order of the data-points to be retained and the x-coordinates of each of the 8 data-points to be equal

[R] row-wise means

numbers stored in col2 and col3. How can this be done in R? TIA, Anjan -- = anjan purkayastha, phd bioinformatics analyst whitehead institute for biomedical research nine cambridge center cambridge, ma 02142 purkayas [at] wi [dot] mit [dot] edu 703.740.6939

Re: [R] Filtering on a dataframe- newbie question

Thank you all who replied to my post. That cleared things up very well Anjan On Sun, Oct 18, 2009 at 11:10 PM, ANJAN PURKAYASTHA < anjan.purkayas...@gmail.com> wrote: > Hi, > newbie question. I have a data-frame with 3 named columns: Name, Obs1, > Obs2. > The Name column m

[R] Filtering on a dataframe- newbie question

Any ideas on how to do this? I'm sure I'm missing a simple concept here. Thanks, Anjan -- ========= anjan purkayastha, phd bioinformatics analyst whitehead institute for biomedical research nine cambridge center cambridge, ma 02142 purkayas [at] wi [dot] mit

[R] Calculating the average after adding 3 matrices

-- = anjan purkayastha, phd bioinformatics analyst whitehead institute for biomedical research nine cambridge center cambridge, ma 02142 purkayas [at] wi [dot] mit [dot] edu 703.740.6939 [[alternative HTML version deleted]] __ R-help@r-project.org

Re: [R] Book on R programming

To All, Your prompt and helpful replies are most appreciated. I'll be sure to check out your suggestions. Cheers, Anjan On Mon, Aug 31, 2009 at 8:24 AM, Ottorino-Luca Pantani < ottorino-luca.pant...@unifi.it> wrote: > ANJAN PURKAYASTHA ha scritto: > >> Most books on R

[R] Book on R programming

Most books on R I come across describe running statistical procedures in R. Any suggestions on a good book that teaches *programming* in R? Thanks, Anjan -- = anjan purkayastha, phd bioinformatics analyst whitehead institute for biomedical research nine cambridge

[R] Plotting question

100318 25 MJ-8000-185 80 92 26 MJ-8000-186 80161 27 MJ-8000-188 60158 28 MJ-8000-191 60103 29 MJ-8000-192 40468 30 MJ-8000-193 40432 -- = anjan purkayastha, phd bioinformatics analyst whit

[R] drawing a plot with SEM

? TIA, Anjan -- = anjan purkayastha, phd bioinformatics analyst whitehead institute for biomedical research nine cambridge center cambridge, ma 02142 purkayas [at] wi [dot] mit [dot] edu 703.740.6939 [[alternative HTML version deleted

[R] Uninstall question

I need to uninstall R 2.7.1 from my Mac. What is the best way to uninstall it? Simply delete the R icon in the Applications folder? Or is it more involved? TIA, Anjan -- = anjan purkayastha, phd bioinformatics analyst whitehead institute for biomedical research nine

[R] question on statistical test

hi, this is more of a statistical methodology question than an R question. however, since there are quite a few expert statisticians in this forum i think i can expect to get some useful feedback. here is my problem: i am studying a set of genes. for each gene i have a set of probes (there are 2-5

Re: [R] quantile question

Thanks all for your prompt and helpful replies! Anjan On Thu, Jan 22, 2009 at 11:52 AM, ANJAN PURKAYASTHA < anjan.purkayas...@gmail.com> wrote: > Hi, > A simple quantile question: > I need to calculate the 95% and 5% quantiles (aka percentiles) for the > following data: >

[R] quantile question

, Anjan -- = anjan purkayastha, phd bioinformatics analyst whitehead institute for biomedical research nine cambridge center cambridge, ma 02142 purkayas [at] wi [dot] mit [dot] edu 703.740.6939 [[alternative HTML version deleted

[R] Perl-R bridge

. Suggestions on alternate solutions will be appreciated. Thanks in advance, Anjan -- ===== anjan purkayastha, phd bioinformatics analyst whitehead institute for biomedical research nine cambridge center cambridge, ma 02142 purkayas [at] wi [dot] mit [dot]

[R] Statistics forums

Hi, Given that the R forum is mostly a site to discuss issues related to the language, are there any forums that discuss statistical issues? I am specifically interested in the statistical issues in experimental design. TIA, Anjan -- = anjan purkayastha, phd

[R] package question

hi, am new to R. what command do i use to check of certain packages have been loaded? Also, it seems that most packages come with "vignette"- is this a document that describes the usage of the package? thanks for your help, anjan -- ===== anjan purkay

[R] printing all rows

Hi, my data table has 38939 rows. R prints the first 1 columns and then prints an error message:[ reached getOption("max.print") -- omitted 27821 rows ]]. is it possible to set the maxprint parameter so that R prints all the rows? tia, anjan -- =