Re: [R] Please help(urgent) - How to simulate transactional data for reliability/survival analysis

ow to use the other columns in you data set > (e.g., the event(0/1)). > > Mark > R. Mark Sharp, Ph.D. > msh...@txbiomed.org > > > > > >> On Jul 4, 2017, at 7:02 AM, Sunny Singha >> wrote: >> >> Thanks Boris and Bret, >> I was successfu

Re: [R] Please help(urgent) - How to simulate transactional data for reliability/survival analysis

Thanks Boris and Bret, I was successful in simulating granular/transactional data. Now I need some guidance to transform the same data in format acceptable for survival analysis i.e below format: pump_id | event_episode_no. | event(0/1) | start | stop | time_to_dropout The challenge I'm experienc

[R] Fwd: Please help(immediate) - How to simulate transactional data for reliability/survival analysis

I apologise as I had mistakenly posted this message via non- member mail. So I'm reposting it with member id. I need help in this case. > Hi friends, > I haven't done such a simulation before and any help would be greatly > appreciated. I need your guidance. > > I need to simulate end to end

[R] Help to simulate data to model pump failure use case

t; -ve_corr( +ve_corr(discharge_pressure + flow) + temprature) -- worn shafts --> +ve_corr(discharge_pressure + flow) How should I be generate distributions for the variables listed in the "failure modes" maintaining the correlation stated above. Regards, Sunny

[R] Generate correlated expontial distribution -- lamda please guide

Hi, I need to generate correlated (positive as well as negative) bivariate exponential distribution with rate of 1/5 or any rate I need some guidance here. Please help. Regards, Sunny __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more

Re: [R] Please assist -- Unable to remove '-' character from char vector--

ases to be specified in the regex ? Regards, Sunny Singha. On Mon, Apr 25, 2016 at 12:39 PM, Jim Lemon wrote: > Hi Sunny, > Try this: > > # notice that I have replaced the fancy hyphens with real hyphens > end<-c("2001-","1992-","2013-","2013-&quo

[R] Please assist -- Unable to remove '-' character from char vector--

single values but not from ranges. Please guide. > gsub('[-|,]', '', end) [1] "2001" "1992" "2013" "2013" "2013" "2013" "2003" [8]

[R] R cannot allocate a vector of size 5.4mb

execution time of my loop but after doing that i ran into the above mentioned error Thanks & Regards Jijo Sunny DISCLAIMER: "The information in this e-mail and any atta...{{dropped:12}} __ R-help@r-project.org mailing list -- To UNSUBSCR

Re: [R] Please guide -- UTF-8 locale setting fails on Windows on writing

Milan, Anwer to your queries: -- But how do you read back the contents of the file? You need to specify the encoding when reading it too. Answer: I read back as stated in 'Case 2' -- Are you sure the notepad saved the text as UTF-8? Answer: Yes. Regards, Sunny On Mon, Mar 28, 2016

Re: [R] Please guide -- UTF-8 locale setting fails on Windows on writing

ding social media data extracted, which ultimately is somewhere using httr package and returning data frames. I'm not sure how should I get it handled in Windows as I don't observe this behavior in Mac where system locase is set to 'en_US.UTF-8' Regards, Sunny On Mon, Mar

[R] Please guide -- UTF-8 locale setting fails on Windows on writing

nd-windows/ I'm not sure whether the issue is while reading/extracting the data from media or while writing/exporting in Windows directory, but I don't experience similar issue in my personal Mac machine. I need some clarification here. How could I expo

Re: [R] Please guide -- Error during export in csv format

you would have observed in error message it wasn't interpreted as above but some other nonsensical characters (posts_Hi nhng ngui dng > hành cùng line). Is there a workaround to handle such strings ? Regards, Sunny On Mon, Mar 21, 2016 at 6:29 PM, Sunny Singha wrote: > Thanks Ben,

[R] Please guide -- Error during export in csv format

x27;,grp_id,'.csv')) my.file2 <- file.path('./', paste0('posts','_',name,'_',grp_id,'.csv')) write.csv(posts_frame, file=my.file2, row.names = F) write.csv(likes_frame, file = my.file1, row.names = F) Regards, Sunny __

Re: [R] Please help -- Cbind data frames within LIST() in R

ile=myfile, row.names = F) } } } Here I call the above function: # Call page_data_extract() function for each pages found to gather posts, comments & Likes for(i in 1:nrow(pages_df)){ e_catch <- try(page_data_extract(pages_df$id[i])) if(isTRUE(all.equal(class(e_catch), '

[R] Please help -- Cbind data frames within LIST() in R

data frame are of unequal length. hence, missing values will be filled with 'NA' after combining* Regards, Sunny [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz

[R] Help -- feed data frames, returned from function into list --

#x27;facebook) for(i in 1:length(groups)){ g <- list() g[[i]] <- searchGroups_mod(*groups[i]*, token=fb_oauth, 10) } The result list stores data frame only for the last string in the 'groups' vector. Why the List is getting reassigned for each iteration ? Please guide. Regards,

Re: [R] Question regarding lattice::levelplot and distribution of colors

= 0.5, > rot = 90), > y = list(cex = 0.5), > alternating = FALSE), > xlim = c(0, 50), > colorkey = list(labels = paste(seq(-0.2,0, 0.025)), >

Re: [R] Question regarding lattice::levelplot and distribution of colors

for the color key limits. Best, Sanvesh On Sun, Jul 6, 2014 at 11:59 PM, David Winsemius wrote: > > On Jul 6, 2014, at 4:35 PM, Sunny Srivastava wrote: > > > Hello R-helpers: > > > > I think there is some problem with my code, but I would like to seek you >

[R] Question regarding lattice::levelplot and distribution of colors

Hello R-helpers: I think there is some problem with my code, but I would like to seek you help because I can't spot it. I have a data.frame defined as follows: testdf <- structure(list(yy = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L), .Label = c("R", "L"), class =

Re: [R] Strings from different locale

hanging my locale to 'all; >> locales? >> >> I don't know what locale the string is in, is there a way to detect this >> or >> translate >> > Thanks! I was having a similar problem with some non-English characters (such as the e-acute) causing memory corru

Re: [R] new to loops

Maybe this is what you're looking for: # x is your set of explanatory variables (10 of them): x <- array(rnorm(1), dim=c(1000,10)) # y is your dependent variable: y <- rbinom(1000, 1, 0.3) # run the regression on each column of x: reg <- apply(x, 2, function(z) glm(y ~ z, family=binomial(lin

Re: [R] split character vector by multiple keywords simultaneously

Andrew Robinson-6 wrote: > > A hack would be to use gsub() to prepend e.g. XXX to the keywords that > you want, perform a strsplit() to break the lines into component > strings, and then substr() to extract the pieces that you want from > those strings. > > Cheers > > Andrew > Thanks, that go

[R] split character vector by multiple keywords simultaneously

Hi. I have a character vector that looks like this: > temp <- c("Company name: The first company General Manager: John Doe I > Managers: John Doe II, John Doe III","Company name: The second company > General Manager: Jane Doe I","Company name: The third company Managers: > Jane Doe II, Jane Doe II

Re: [R] Matching package - Match function

n the distance.tolerance option. sunny wrote: > > Hi. > > I am using the Matching package for propensity score matching. For each > treated unit, I want to find all control units whose propensity scores lie > within a certain distance from the treated unit. The sample code is as

[R] Matching package - Match function

Hi. I am using the Matching package for propensity score matching. For each treated unit, I want to find all control units whose propensity scores lie within a certain distance from the treated unit. The sample code is as follows: > library(Matching) > x <- rnorm(10) > y <- rnorm(10) > z

Re: [R] [plyr] Question regarding ddply: use of .(as.name(varname)) and varname in ddply function

ot;cyl")), mtcars) > > But you shouldn't need to do any syntactic hackery because the default > method automatically parses the string for you: > > eval.quoted(as.quoted("cyl"), mtcars) > > Hadley > > On Mon, Dec 6, 2010 at 6:22 PM, Sunny Srivasta

Re: [R] [plyr] Question regarding ddply: use of .(as.name(varname)) and varname in ddply function

, 2010 at 5:28 PM, Hadley Wickham wrote: > On Mon, Dec 6, 2010 at 3:58 AM, Sunny Srivastava > wrote: > > Dear R-Helpers: > > > > I am using trying to use *ddply* to extract min and max of a particular > > column in a data.frame. I am using two d

[R] [plyr] Question regarding ddply: use of .(as.name(varname)) and varname in ddply function

Dear R-Helpers: I am using trying to use *ddply* to extract min and max of a particular column in a data.frame. I am using two different forms of the function: ## var_name_to_split is a string -- something like "var1" which is the name of a column in data.frame ddply( df, .(as.name(var_name_to_

Re: [R] Split-split plot design with aov function in R

http://www.amazon.com/Statistical-Design-George-Casella/dp/1441926143/ref=sr_1_1?s=gateway&ie=UTF8&qid=1285609902&sr=8-1 Hello Mohd. Yaseen, Please check out the book by Dr. Casella and his website www.stat.ufl.edu/~casella for the relevant R codes. Chapter 5 of this book talks about Split Split P

Re: [R] Question: how to obtain the clusters of genes (basically the ones in the row dendrograms) from an object obtained by heatmap.2 function

Thanks Michael for your help. At least its good to know that there is no function which does what I wanted. I will definitely try to code something that fulfills my requirements. Regards, S. On Fri, Sep 17, 2010 at 2:32 AM, Michael Bedward wrote: > Hello Sunny, > > Defining groups a

[R] Question: how to obtain the clusters of genes (basically the ones in the row dendrograms) from an object obtained by heatmap.2 function

Hello R-Helpers, I have a question about extracting the clusters of genes after we make the heatmap (say ht4) using the heatmap.2 function. Basically, I want to get the clusters which are shown as row dendrogram in the heatmap. I understand that ht4$rowDendrogram is an object of dendrogram and it

Re: [R] Question: Form a new list with the index replicated equal to the number of elements in that index

Thank you very much list! On Mon, Sep 13, 2010 at 5:04 PM, Phil Spector wrote: > Sunny - > I don't think mapply is needed: > > lapply(1:length(mylist),function(x)rep(x,length(mylist[[x]]))) >> > [[1]] > [1] 1 1 1 > >

[R] Question: Form a new list with the index replicated equal to the number of elements in that index

Dear R-Helpers, I have a list l1 like: l1[[1]] a b c l1[[2]] d l1[[3]] e f I want an output res like: res[[1]] 1 1 1 res[[2]] 2 res[[3]] 3 3 Essentially, I want to replicate each index equal to the number of elements present in that index. Below is what I do to accomplish this: l1 <- list

Re: [R] P values

Dear R-Users, This list is observed by many great statisticians and non-statisticians. I just want to add this valuable link to this great discussion. http://www.stat.duke.edu/~berger/p-values.html Thanks and Best Regards, S. On Sat, May 8, 2010 a

Re: [R] Expectation of E(x^1/2)

Dear Haneef, Pls see if this suits your requirement. sim.norm = rnorm(1,mean=a,sd=sqrt(b)) mean.est = mean(sqrt(sim.norm)) Thx S. On Sat, Apr 10, 2010 at 9:31 PM, Haneef Anver wrote: > Hi all, > > > I am trying to find the expectation of x^1/2 where x~N(a,b) ( Normal with > mean a and vari

[R] How the change the dimension of an individual cell [i.e. the cell corresponding to an observation in data matrix] in a heatmap.2?

Dear R-Helpers, I have a short question related to heatmap.2 function. I wanted to change the dimension of each cell in the heatmap drawn by this function. here is a reproducible example from the help page library(gplots) data(mtcars) x <- as.matrix(mtcars) rc <- rainbow(nrow(x), start=0, end=.

Re: [R] Using apply function on duplicates in a data.frame

Thanks a lot. All the three approaches work for me! On Sun, Jan 31, 2010 at 10:43 PM, hadley wickham wrote: > On Sun, Jan 31, 2010 at 5:05 PM, Sunny Srivastava > wrote: > > Dear R-Helpers, > > I have a data.frame (df) and the head of data.frame looks like > > >

[R] Using apply function on duplicates in a data.frame

Dear R-Helpers, I have a data.frame (df) and the head of data.frame looks like ProbeUID ControlType ProbeName GeneName SystematicName 1665 1577 0 pSysX_50_22_1 pSysX_50 pSysX_50 5422 5147 0 pSysX_49_8_1 pSysX_49 pSysX_49 4042 3843 0 p

[R] Problems in installing MCMCglmm package

Dear R-Helpers, I am having troubles with installing with MCMCglmm package and I get the following error with a package "Matrix" Warning in library(pkg, character.only = TRUE, logical.return = TRUE, lib.loc = lib.loc) : there is no package called 'Matrix' Error: package 'Matrix' could not be loa

[R] Lattice : Help with changing the labels of x-axis in respective panels

Dear R-Helpers, I am not very experienced in using lattice and I am still in the learning stage I have a data set which looks like this: (I have deleted a few lines in order to save space) Chromosome marker Marker.Name Distance 1 1 1 PeMm261 0. 2 1 2

[R] Akaike weight in R

I am using lm simulation in R and try to find the AICc and Akaike weight of the model. I searched out that using package "AICcmodavg" AICc is easily to get. I wonder how can I get the "Akaike weight", any function I can use to generate it? Thanks in advance. Sunny

Re: [R] a bug with Student t-value??

Hi Huaru, Are you sure you are looking at 0.95 and NOT 0.975? as qt(0.975,9) = 2.262 generally tables are given for alpha/2 (alpha=0.05 in your case) significance. Please check carefully. Thx, S. On Sat, Nov 7, 2009 at 4:02 AM, huaru wang wrote: > Hello, every one, > > Using the qt() functio

[R] Plot with CART results

dea what gramma should I use? Thanks in advance. Sunny [[alternative HTML version deleted]] __ 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.h

[R] how to read point shp file to R?

I am new with R and want do some analysis with a point vector data file. Any help is appreciate. Sunny [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the

[R] plotting ROC from coefficient in the model

Hi everyone. Probably this is statistical question rather than an R, but it involves packages from R I am asking here since I am unable to find an answer. In the parametric modeling packages like glmnet, lasso etc..., we are able to obtain the coeffcients that have entered the model. for e

[R] caret package

Hi all I am using the caret package and having difficulty in obtaining the results using regression, I used the glmnet to model and trying to get the coefficients and the model parameters I am trying to use the extractPrediction to obtain a confusion matrix and it seems to be giving me errors.