similar to: Help with manipulation of matrix object

I thought the "apply" functions are faster than for loops, but my most recent test shows that apply actually takes a significantly longer than a for loop. Am I missing something? It doesn't matter much if I do column wise calculations rather than row wise ## Example of how apply is SLOWER than for loop: #rm(list=ls()) ## DEFINE VARIABLES mu=0.05 ; sigma=0.20 ; dt=.25 ; T=50 ;

Hi Just a simple question really. I?ve got these large 2d matrices that I?d like to inspect, but not from start to finish. The head() command is convenient when columns are few. For large nxn matrices, however, head() and head.matrix() are still cumbersome. Is there a simple way of viewing both the columnwise and rowwise heads of a matrix? cheers, Bruce -- View this message in context:

Respected Sir, I am trying to import excel file into R, but I need to truncate some columns from the original file. How to delete unwanted columns when I import data from excel file. How to use cor.test for the data when I want the output rowwise. How to do grouping and use cor.test on that data I need some help regarding how to calculate the correlation. I don't know whether you

Hi Shawn, I don't think it has anything to do with the tidyverse. If you keep simplifying your example you'll get all the way down to > DTp(T=c(279,294),p=c(0.46,0.46)) [1] 1000.12283 --Ista On Wed, May 30, 2018 at 2:14 PM, Shawn Way <SWay at meco.com> wrote: > I'm trying to use the IAPWS95 package with the tidyverse packages. For some reason, the function is not

Hi guys, one of the questions where you need a real human instead of a search engine, so it would be great if you could help. I have a matrix of z-scores which I would like to filter, sometimes columnwise, sometimes rowwise. Data looks like this: Allstar hsa.let.7a hsa.let.7a.1 hsa.let.7a.2 2 0.87 0.79 -0.57 1.07 3 0.67 -1.14 -0.78 -0.95 4

Or with the Bioconductor IRanges package: df <- with(input, DataFrame(station, year=IRanges(from, to), record)) expand(df, "year") DataFrame with 24 rows and 3 columns station year record <character> <integer> <character> 1 07EA001 1960 QMS 2 07EA001 1961 QMC 3 07EA001 1962 QMC 4

I'm trying to use the IAPWS95 package with the tidyverse packages. For some reason, the function is not outputting the correct rho. A minimal example with results is below. I've also included the definition of the DTp function from the IAPWS95 library. ==================================== library(IAPWS95) library(tidyverse) initial <- data.frame(T=c(279,294),p=c(0.46,0.46))

try this: ########################################## library(dplyr) input <- tribble( ~station, ~from, ~to, ~record, "07EA001" , 1960 , 1960 , "QMS", "07EA001" , 1961 , 1970 , "QMC", "07EA001" , 1971 , 1971 , "QMM", "07EA001" , 1972 , 1976 , "QMC", "07EA001" , 1977 ,

Hi all, I have a total newbie question, but I could really use some help. I need to read in this file: SampleID Disease E-CBIL-28-raw-cel-1435145228.cel 1 E-CBIL-28-raw-cel-1435145451.cel 2 E-CBIL-28-raw-cel-1435145479.cel 2 E-CBIL-28-raw-cel-1435145132.cel 3 E-CBIL-28-raw-cel-1435145417.cel 3 E-CBIL-28-raw-cel-1435145301.cel 2 E-CBIL-28-raw-cel-1435145558.cel 1

Dear R´ers.. In this mock dataset how can I generate a logical variable based on whether just tes or tes3 are NA in each row?? test<-sample(c("A",NA,"B"),100,replace=T) test2<-sample(c("A",NA,"B"),100,replace=T) test3<-sample(c("A",NA,"B"),100,replace=T) tes<-cbind(test,test2,test3)

On Wed, Jul 22, 2020 at 12:44 PM Administrator <admin at tootai.net> wrote: > No one on this ? > > Le 10/07/2020 à 18:06, Administrator a écrit : > > Hi, > > > > On Asterisk 16.11.1 when enabling cel I get error with BRIDGE_START > > and BRIDGE_END events > > > > zone-s*CLI> module reload cel > > The module 'cel' reported a

Hi, On Asterisk 16.11.1 when enabling cel I get error with BRIDGE_START and BRIDGE_END events zone-s*CLI> module reload cel The module 'cel' reported a reload failure     -- Reloading module 'cel' (CEL Engine) [2020-07-10 17:57:01] ERROR[16163]: cel.c:428 ast_cel_str_to_event_type: Unknown event name 'BRIDGE_START' [2020-07-10 17:57:01] ERROR[16163]:

No one on this ? Le 10/07/2020 à 18:06, Administrator a écrit : > Hi, > > On Asterisk 16.11.1 when enabling cel I get error with BRIDGE_START > and BRIDGE_END events > > zone-s*CLI> module reload cel > The module 'cel' reported a reload failure >     -- Reloading module 'cel' (CEL Engine) > [2020-07-10 17:57:01] ERROR[16163]: cel.c:428 >

Dear Help, After loading the pd.Citrus library and checking the DataFrame, I ran > the R code for: > > 1) 'oligo' > > > > {> library(pd.citrus) > Loading required package: RSQLite > Loading required package: DBI > > data(pmSequence) > > > show(pmSequence) > DataFrame with 341730 rows and 2 columns > fid sequence > <integer>

Hi, I have built R (current development version) and BioConductor 1.7 with portland group compiler on a AMD Opteron. When I ran qc assessment on Affymetrix latin square data set, I got the following output, Loading required package: affy Loading required package: Biobase Loading required package: tools Welcome to Bioconductor Vignettes contain introductory material. To view,

Hi, R 2.5.0 isn't auto-completing paths properly as it used to. E.g. suppose I have: > dir("CEL/choe") [1] "chipC-rep1.CEL" "chipC-rep2.CEL" "chipC-rep3.CEL" "chipS-rep1.CEL" [5] "chipS-rep2.CEL" "chipS-rep3.CEL" Now if I do: ReadAffy("CEL/choe/ch<tab> # => ReadAffy("CEL/choe/chip

Dear list, I have been searching for a week to fit a simple linear model to my data. I have looked into the previous posts but I haven't found anything relevant to my problem. I guess it is something simple...I just cannot see it. I have the following data frame, named "data", which is a subset of a microarray experiment. The columns are the samples and the rows are the probes. I

On 11/29/2017 04:15 PM, T?th D?nes wrote: > Hi, > > A benchmarking study with an additional (data.table-based) solution. I don't think speed is the right benchmark (I do agree that correctness is!). For the R-help list, maybe something about least specialized R knowledge required would be appropriate? I'd say there were some 'hard' solutions -- Michael (deep

Hi, Is there any function to replace colProds that finds column-wise products of a matrix? Or is there any other function that would give a better solution this problem ? I have a matrix and an array, example: > a GSM1.CEL GSM2.CEL GSM1.CEL 10000_at 1 3 1 10001_at 3 3 3 > b 10000_at

Dear R Group: How to import multiple csv files and merge into one dataset. Thanks and Regards, Xing [[alternative HTML version deleted]]