[R] %%

Hello, Where can I find info about the operator %%? Never used it but when I search for it I gives no result. Thanks, André __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do

[R] merge dataframes

Hello, I have two dataframes: dat1-data.frame(x=c(1.0,1.2,3.2,4.0,5.1),y=c(23,17,12,27,8)) dat2-data.frame(x=seq(0,6,by=0.1),y=rep(0,60))) I want to replace the corresponding rows of dat2 with the ones of dat1. I tried: for(i in 1:nrow(dat1)) { dat2[dat2$x==dat1[i,1],2]-dat1[i,2] } But I

[R] constructing yieldcurve

Hello, With which package can I build a yield curve using swap data with the bootstrapping method? Thanks for the reaction, André [[alternative HTML version deleted]] __ R-help@r-project.org mailing list

[R] convert string to variable

Hello, Is it possible to convert a string to a variable? I have a set of names: stocks [1] ACCELL AHOLD AJAXARCADIS BALLAST BAM.GROEP [7] BESIBETER.BED BINCKBANK.NVBOSKALIS CATE CROWN.V.GELDER And a data frame with stockquotes. With a for-loop

[R] manipulate dataframe

Hello, Can someone give me hint to change a data.frame. I want to split a column in more columns depending on the value of a other column. Thanks for the reaction, Andre Example: dat x1 x2 1 1 a 2 1 b 3 1 c 4 2 d 5 2 e 6 2 f 7 3 g 8 3 h 9 3 i in dur d1 d2 d3 1 a d g

[R] big data

Hello, I searched the internet but i didn't find the answer for the next problem: I want to do a glm on a csv file consisting of 25 columns and 4 mln rows. Not all the columns are relevant. My problem is to read the data into R. Manipulate the data and then do a glm. I've tried with:

[R] date conversion

Hello, I have a dataframe with data such as: dat$BEGINDATUM[3] [1] 13-09-2007 dat$BEGINDATUM[4] [1] 01-11-2007 class(dat$BEGINDATUM[3]) [1] factor Now I need to make calculation with these dates. But I get these result: as.date(as.character(dat$BEGINDATUM[3])) [1] NA

[R] calculations with dates

Hi, I have a data.frame with factors in columns like startdate enddate 27SEP2005 01JAN2006 How can I calculate the duration between those two dates and move this in a extra column in the data.frame. Thanks, André [[alternative HTML version deleted]]

[R] extracting year from date

Hi, Sorry for this simple question but I searched the internet and can't find the answer. From a date I want the year extracted: data$start[1 [1] 2006-11-01 Thanks for the answer, Andre [[alternative HTML version deleted]] __

[R] conditionally sum

Hi, Suppose I have a dataframe like: data yx 1 1 2008 2 1 2008 3 0 2008 4 0 2009 5 1 2009 Now I want to know how much 1 corresponds with 2008 and how much with 2009, the answers are 3 and 1. How can I achieve this? Thanks for the anwer. André

[R] how to eliminate an element of a list

Hi, I want to eliminate an element of a list: list - seq(1,5,1) s - sample(list,1) lets say s=3 Now I want to remove 3 from the list: list2 = {1,2,4,5} Can someone give me a tip? Thanks, André [[alternative HTML version deleted]] __