similar to: Courses in R

Displaying 20 results from an estimated 6000 matches similar to: "Courses in R"

2012 Jan 31
3
function: as.integer
dear r-helpers, i created an object named A, which looks like this: A <- c("4.4","1.9","4.1") now i needed to get numbers instead of characters and for this i used the function: as.integer(A) which resulted in: [1] 4 1 4 My question is, why the numbers are rounded or more impotantly if there is a way to keep the decimal numbers? Thank you very much for
2011 Sep 20
4
open source editor for r for beginners
Hello all, I am looking for an editor for R which has got functions beyond the normal R editor that is included in the program. I had a look at VIM but I think it's difficult if you are just starting programming. Could anyone recommend an editor that is suitable for beginners? Thanks for your help. Marion [[alternative HTML version deleted]]
2009 Jan 27
1
Creating list or numeric vectors out of selected columns of row oriented data
I am just assuming this can be done, but I have not gotten close to making it happen. I have a data file with about 1 million rows with 1470 unique subjects. Each row represents a small set of observations made on a specific date for a single subject. I would like to transform the data so that I have an R object with a single entry for each subject and start date and vectors for the
2011 Sep 16
3
writing data from several matrices in R into one excel-file with several sheets
hello, does anyone know how I can write several matrices from R into one exel-file using different sheets for the different matrices? thank you very much in advance for your help. Marion [[alternative HTML version deleted]]
2012 Jan 02
2
syntax for reading into R
dear users, we have got the following question: we have got a text-file looking like this: ... <trkpt lat="48.272000" lon="16.342984"> <ele>387</ele> <time>2012-01-01T15:32:03Z</time> <sat>9</sat> </trkpt> <trkpt lat="48.271909" lon="16.343563"> <ele>381</ele>
2012 Apr 12
3
Reading SPSS: underlying numerical codes
Dear people, I have got a question concerning the underlying numerical codes when reading an SPSS file into R. I used the package foreign and when I look at a variable I get the verbal codes. I would like to know how it is possible to get the underlying numerical codes as output, which are the same as in my SPSS file. Thank you very much in advance for your help! Marion [[alternative HTML
2011 Sep 16
2
automatic selection of object without loop
Hello, does anyone know the solution to this problem: I imported a dataframe from Spss into R and saved it as an object called "kinderrechte". I have got the following command lines: q1 <- kinderrechte[,"q0007_0001"] l1 <- q0007_0001_l now i would like to be able to change the column name in the first command line (e.g. into q0007_0002) and to get R to automatically
2012 Jan 16
3
list: index of the element, that is TRUE
Dear People, I have got the following example for a vector and the index of the TRUE element: Myvector <- c(FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,TRUE) which(Myvector) Now I would like to find out the same for a list: Mylist <- list(FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,TRUE) ... Does anyone know how to do this? Thank you very much in advance, Marion [[alternative HTML
2011 Sep 19
2
pasting elements of one character vector together
hello, i am familiar with the paste command with which i can paste for exaple: object <- "Hello" paste(object,"World") now i would like to be able to paste all the elements of the same vector together e.g: object <- c("Hello","World") getting as a result also: "Hello World". Does anyone know the solution to this problem? Thank you
2012 Jul 24
3
package memisc: recode examples
Dear people, Yesterday I looked at the recode command in the memisc package and ran the following example stated in the manual: x <- as.item(sample(1:6,20,replace=TRUE), labels=c( a=1, b=2, c=3, d=4, e=5, f=6)) print(x) f <- as.factor(x) f recode(f,
2011 Oct 11
2
binding all elements of list (character vectors) to a matrix as rows
dear r-users, i have got a problem which i am trying to solve: i have got the following commands: Mymatrix <- matrix(1:9,ncol=3) Z <- list("V1"=c("a","",""),"V2"=c("b","",""),"V3"=c("c","",""),"V4"=c("d","","")) Mymatrix <-
2012 Feb 14
2
save objects of own function to workspace
Dear R-helpers, I created an own function which looks like this s_elternmz <- function(Var="balt") { Dg_a<-mz[,c("asbhh","apkz",Var)] colnames(Dg_a)[colnames(Dg_a)=="apkz"]<-"bpkzm" colnames(Dg_a)[colnames(Dg_a)==Var]<-paste(Var,"_m",sep="")
2012 Feb 16
2
import .csv file into R
Dear r-helpers, I read a .csv file into R with the following command: A<-read.csv2(file="Mappe3.csv") It worked fine, except that I would like to get rid of the points between the words and get spaces instead like I have got in the .csv file. At the moment it looks like the following: habe.mich.gut.mit.KlassenkollegInnen.verstanden hatte.gutes.Verhältnis.zu.Eltern
2012 May 31
1
maptools: using to sets of information (within two shape files) for one plot
Dear all, I am using a shape file containing the information regarding the borders of the PARISHES of Austria. I created a plot with different colours for different percentages of child care institutions. Now I would like to add the information of the COUNTY boundaries to this plot which I have got in another shape file. I would like these boundaries to be shown with bold lines so that they can
2012 Feb 20
3
Run function several times changing only one argument - without a loop
Dear people, I created a plot which looks like this: Ee1<-matrix(c(88,86,74,62,41),ncol=5) colnames(Ee1)<-c("Lehrer","Lehrerinnen","Klassenkollegen","Klassenkolleginnen","Geschwister") par(las=1) par(mar=c(5,13,4,2)) barplot(Ee1,horiz=T,col="grey85",border="NA",xlim=c(0,100),axes=F) axis(2,pos=10, tick=T, tcl=F,
2017 Aug 23
0
Comparing 2 dale columns
Patrick, ## Run the following script an notice the different values of the dataframe "data" in each instance. # I understand you have done something like the following: data <- data.frame(COL1 = c("6/1/14", "7/1/14"), COL2 = c("5/1/15", "5/1/15"), stringsAsFactors = FALSE) data$Date_Flag <- ifelse(data$COL2 >
2017 Jul 05
3
Please help(urgent) - How to simulate transactional data for reliability/survival analysis
A small example data set that illustrates your question will be of great value to those trying to help. This appears to be a transformation that you are wanting to do (timestamp to units of time) so a data representing what you have (dput() is handy for this) and one representing what you want to have with any guidance regarding how to use the other columns in you data set (e.g., the event(0/1)).
2013 Apr 03
1
(no subject)
Hello, I want to perform a latent class analysis using poLCA package. My formula is: substances <- cbind(subs1, subs2, subs3, subs4, subs5, subs6) ~ gender+age+education+income+occupation+urban+dbehavior+incarceration+treatment+depression+alcriteria I want to include sample weights in the model, I have read that poLCA does not take into account weights, but when I introduce them, it seems
2017 Jul 05
0
Please help(urgent) - How to simulate transactional data for reliability/survival analysis
Mark, Below is the sampled simulated granular data format for pumps for trial period of 3 months that I need to transform for survival analysis: 3 months = (60*24*90) minutes i.e 129600 minutes pump_id timings events vibration temprature flow pump1 01-07-2017 00:00 0 3.443 69.6 139.806 pump1 01-07-2017 00:10 1 0.501 45.27 140.028
2012 Jul 25
1
Memisc package: imported varibles from SPSS have got wrong measurement
Dear list members, I have got another problem. I imported an SPSS file with the Memisc package using the following commands: mz <- spss.system.file("myspssfile.sav") mz <- subset(mz,select=c( bsex,balt,xurb,dtaet,kartab,bgeb,boseit,bgeblan,xnuts2,kausb,xerwstat, asbper,asbhh,ajahr,aquartal,bstaat,xwieoft,gew1,apkz,bpkzm,bpkzv)) Afterwards I checked the measurements of the