similar to: Simulation based on runif to get mean

Hello, Another way would be to use ?replicate and ?colMeans. set.seed(2511) # Make the results reproducible fun <- function(n){ f <- function(){ a <- runif(5, 1, 10) b <- runif(5, 10, 20) colMeans(cbind(a, b)) } replicate(n, f()) } fun(10) Hope this helps, Rui Barradas On 1/30/2018 8:58 AM, Daniel Nordlund wrote: > On 1/29/2018

On 1/29/2018 9:03 PM, smart hendsome via R-help wrote: > Hello everyone, > I have a question regarding simulating based on runif.? Let say I have generated matrix A and B based on runif. Then I find mean for each matrix A and matrix B.? I want this process to be done let say 10 times. Anyone can help me.? Actually I want make the function that I can play around with the number of simulation

Hello everyone, I have a question regarding simulating based on runif.? Let say I have generated matrix A and B based on runif. Then I find mean for each matrix A and matrix B.? I want this process to be done let say 10 times. Anyone can help me.? Actually I want make the function that I can play around with the number of simulation process that I want. Thanks. Eg: a <- matrix(runif(5,1, 10))

Capture the results of the apply command into an object and then work with that. Here is one way to do it: > res <- apply(C, 2, fitdist, "gamma") > out <- c( res$A$estimate["shape"], res$B$estimate["shape"], res$A$estimate["rate"], res$B$estimate["rate"]) > names(out) <- c("A shape","B shape","A

Hi, Let say I have data by two columns A and B, and I have fit each column using the gamma distribution by 'fitdist' . I just want the result show only the shape and rate only. Eg: library(fitdistrplus) A <-c(1,2,3,4,5) B<-c(6,7,8,9,10) C <-cbind(A,B) apply(C, 2, fitdist, "gamma") Output show like this: $A Fitting of the distribution ' gamma ' by maximum

Hi everyone, I have two columns: ? ?A? ? ? ? ? ? ? ?B ? ?1? ? ? ? ? ? ? ?1? ?1? ? ? ? ? ? ? ?0 ? ?0? ? ? ? ? ? ? ?1 ? ?0? ? ? ? ? ? ? ?0 I have 4 categories which are: 1) if A = 1 and B =1 then A1 = 1, else A2 = 0, A3 = 0, A4 = 0 2) if A = 1 and B =0 then A1 = 0, else A2 =1, A3 = 0, A4 = 0 3) if A = 0 and B = 1 then A1 = 0, else A2 = 0, A3 = 1, A4 = 0 4) if A = 0 and B =0 then A1 = 0, else A2 =

Hello, I'm cc'ing R-Help. Sorry but your question was asked 3.5 years ago, I really don't remember it. Can you please post a question to R-Help, with a reproducible example that describes your problem? Rui Barradas ? Citando catalin roibu <catalinroibu at gmail.com>: > Dear Rui, > ? > I helped me some time ago with a code..... regarding aggregated data >

Thank you so much Rui! On Sun, Feb 4, 2018 at 12:20 AM, Rui Barradas <ruipbarradas at sapo.pt> wrote: > Hello, > > Please always cc the list. > > As for the question, I believe the following does it. > > a <- strsplit(mydata$ID, "[[:alpha:]]+") > b <- strsplit(mydata$ID, "[[:digit:]]+") > > a <- sapply(a, `[`, 1) > c <-

This is Circle 8..1.13 of the R Inferno. On 05/08/2018 06:57, Rui Barradas wrote: > Thanks. > This is exactly the doubt I had. > > Rui Barradas > > ?s 05:26 de 05/08/2018, Kenny Bell escreveu: >> This should more clearly illustrate the issue: >> >> c(1, 2, 3, 4)[-seq_len(4)] >> #> numeric(0) >> c(1, 2, 3, 4)[-seq_len(3)] >> #> [1] 4

Hello, This is the sort of question that could interess others, so you should have CCed it to the list. As for the question, from the package vignette, section 3.3.6: "writeWorksheetToFile() is a wrapper function, calling loadWorkbook(), createSheet() and saveWorkbook() functions subsequently. It therefore allows for writing data into worksheets of an Excel file in one call." To

> On 5 Nov 2017, at 15:17 , Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > > On 04/11/2017 10:20 PM, Daniel Nordlund wrote: >> Tirthankar, >> "random number generators" do not produce random numbers. Any given >> generator produces a fixed sequence of numbers that appear to meet >> various tests of randomness. By picking a seed you enter

Thanks. This is exactly the doubt I had. Rui Barradas ?s 05:26 de 05/08/2018, Kenny Bell escreveu: > This should more clearly illustrate the issue: > > c(1, 2, 3, 4)[-seq_len(4)] > #> numeric(0) > c(1, 2, 3, 4)[-seq_len(3)] > #> [1] 4 > c(1, 2, 3, 4)[-seq_len(2)] > #> [1] 3 4 > c(1, 2, 3, 4)[-seq_len(1)] > #> [1] 2 3 4 > c(1, 2, 3, 4)[-seq_len(0)]

Thanks, Peter, Eivind and Lui Sorry, I could not explain it properly in the first go. Trying to simplify it here with an example - Say I have two dataframes as below that are not equally-sized data frames: Table_A: Email Name Phone abc at gmail.com<mailto:abc at gmail.com> John Chan 0909 bcd at yahoo.com<mailto:bcd at yahoo.com> Tim Ma

This should more clearly illustrate the issue: c(1, 2, 3, 4)[-seq_len(4)] #> numeric(0) c(1, 2, 3, 4)[-seq_len(3)] #> [1] 4 c(1, 2, 3, 4)[-seq_len(2)] #> [1] 3 4 c(1, 2, 3, 4)[-seq_len(1)] #> [1] 2 3 4 c(1, 2, 3, 4)[-seq_len(0)] #> numeric(0) Created on 2018-08-05 by the reprex package (v0.2.0.9000). On Sun, Aug 5, 2018 at 3:58 AM Rui Barradas <ruipbarradas at sapo.pt>

Kevin, Maybe also look at what air quality monitoring is being done in area. https://cran.r-project.org/web/packages/RAQSAPI/vignettes/RAQSAPIvignette.html Depends what and how near, but might be something relevant there? Karl Dr Karl Ropkins Transport Studies | Environment | University of Leeds ------------------------------ Message: 2 Date: Tue, 12 Dec 2023 07:52:59 -0800 From: Bert Gunter

FYI, this behavior is documented in Section 3.4.1 'Indexing by vectors' of 'R Language Definition' (accessible for instance via help.start()): "*Integer* [...] A special case is the zero index, which has null effects: x[0] is an empty vector and otherwise including zeros among positive or negative indices has the same effect as if they were omitted." The rest of that

Hello Rui, Thanks a lot for your response. But, I will surely say that the data I attached is in long format as it has 18 rows (3 alternatives*3 questions* 2 individuals). Had it been a wide format data it would have had 6 rows (3 questions* 2 individuals). But, anyway thanks. Best, Rahul On Wed, Sep 23, 2020 at 3:23 AM Rui Barradas <ruipbarradas at sapo.pt> wrote: > > Hello, >

Tirthankar, "random number generators" do not produce random numbers. Any given generator produces a fixed sequence of numbers that appear to meet various tests of randomness. By picking a seed you enter that sequence in a particular place and subsequent numbers in the sequence appear to be unrelated. There are no guarantees that if YOU pick a SET of seeds they won't produce

Dear Daniel and Jorge, Thank you very much and it does help. If I have a string "ABCD", how can I access the second element of the string "B"? Thanks, Miao 2012/7/27 Daniel Nordlund <djnordlund@frontier.com> > > -----Original Message----- > > From: r-help-bounces@r-project.org [mailto:r-help-bounces@r-project.org] > > On Behalf Of jpm miao

Ol?, Please keep this in the list, I'm cc-ing r-help at r-project.org. And yes, I am Portuguese but R-Help is a mailing list in the English language. As for your new question, I believe that you should start a new thread. This is completely different from the question on computing mean and sd. Ask a new question. Font "arial" is a Microsoft font and as far as I know is not