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Hi, Given a frame with calendar date's: "2005-07-01", "2005-07-02","2005-07-03","2005-07-04","2005-07-05",etc. I want to extract the following from these dates: week number month number year number Any ideas how to accomplish this? Many thanks. Regards, Richard

...o ask if I use the multilevel model to analysis the data set,will it be acceptable? or unacceptable because of the small sample size? Thank you very much! ronggui 2005-11-28 ------ Deparment of Sociology Fudan University My new mail addres is ronggui.huang at gmail.com Blog:http://sociology.yculblog.com

...system i386, mingw32 status Patched major 2 minor 1.0 year 2005 month 05 day 29 language R OS:windows 2000 2005-06-13 ------ Deparment of Sociology Fudan University Blog:www.sociology.yculblog.com

...+ G31*(ZWARMT) + G32*(ZSHYT1) + U3 i have seen the ?lme in nlme,but still have no ideal how to do. ps:i know how to do if the Level-2 Model are: B0 = G00 + U0 B1 = G10 + U1 B2 = G20 + U2 B3 = G30 + U3 2005-06-10 ------ Deparment of Sociology Fudan University Blog:www.sociology.yculblog.com

...scan can read it in ,but it seems somewhat tricky as the mixed type of variables.any suggestions? the attachmen is the raw data and the description of the data. 2005-10-15 ------ Deparment of Sociology Fudan University My new mail addres is ronggui.huang at gmail.com Blog:http://sociology.yculblog.com

...t have that much money! > version _ platform i486-pc-linux-gnu arch i486 os linux-gnu system i486, linux-gnu status beta major 2 minor 1.1 year 2005 month 06 day 13 language R -- Department of Sociology Fudan University,Shanghai Blog:http://sociology.yculblog.com

...ps: Is it mean that f1 is better than f2? Thank you! f1<-function(x){ n<-length(x) s<-sum(x) m<-s/n} f2<- function(x){ m<-sum(x)/length(x)} 2005-10-23 ------ Deparment of Sociology Fudan University My new mail addres is ronggui.huang at gmail.com Blog:http://sociology.yculblog.com

...g <- interaction(...) split(x, g) <- lapply(split(x, g), FUN) } else x[] <- FUN(x) x } my question is : what does "split(x, g) <- lapply(split(x, g), FUN)" mean? thank you! -- Department of Sociology Fudan University,Shanghai Blog:http://sociology.yculblog.com

...ing .dbf (dBase) files. License: GPL version 2 or later Packaged: Fri Dec 9 14:46:20 2005; ripley Built: R 2.2.0; i386-pc-mingw32; 2005-12-10 14:23:19; windows 2005-12-15 ------ Deparment of Sociology Fudan University My new mail addres is ronggui.huang at gmail.com Blog:http://sociology.yculblog.com

Dear R-list, I have a dataset, say (the real dataset is 20 columns,110200 rows). > my.reducedID V1 V2 V3 V4 V5 V6 V7 V8 V9 [1,] 1 0 0 1 14 3 1 0 2 [2,] 2 0 0 1 14 3 1 0 2 [3,] 0 1 0 1 14 2 1 0 2 [4,] 0 0 1 1 14 3 1 0 2 [5,] 0 1 1 0 14 2 1 0 2 [6,] 0 0 0 1 14 3 1 0 2 [7,] 0 0 0 1 0 3 1 0 2 [8,] 0

...stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html = = = = = = = = = = = = = = = = = = = = 2005-12-06 ------ Deparment of Sociology Fudan University My new mail addres is ronggui.huang at gmail.com Blog:http://sociology.yculblog.com

...2 minor 2.0 year 2005 month 10 day 06 svn rev 35749 language R 2005-12-14 ------ Deparment of Sociology Fudan University My new mail addres is ronggui.huang at gmail.com Blog:http://sociology.yculblog.com

...lp at stat.math.ethz.ch mailing list >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html = = = = = = = = = = = = = = = = = = = = 2005-07-26 ------ Deparment of Sociology Fudan University Blog:http://sociology.yculblog.com

...ot;] #- not THIS class ----- so I use ?oldClass to try to learn more about oldClass.But after I have reading all the help page ,I still have no idea the diiference between oldClass and class. Anynone can help me ? 2005-08-06 ------ Deparment of Sociology Fudan University Blog:http://sociology.yculblog.com

...ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > = = = = = = = = = = = = = = = = = = = = 2005-12-11 ------ Deparment of Sociology Fudan University My new mail addres is ronggui.huang at gmail.com Blog:http://sociology.yculblog.com

...2 minor 2.0 year 2005 month 10 day 06 svn rev 35749 language R 2005-12-12 ------ Deparment of Sociology Fudan University My new mail addres is ronggui.huang at gmail.com Blog:http://sociology.yculblog.com

Hi, I'm trying to fit a fixed effect (LSDV) panelmodel with R. I have a dataset with y as dependent, x1&x2 as indeps, t as time index and i as an id-variable for each individual. There are three observations for each individual (t=1, t=2, t=3). I want to try a simple regression, but with individual intercepts: ------------------------------------------------- # reading in some data ...

Hi, I'm using R for some arima models. In the past I used for arima models Rats and Tsp. Using the R arima function, I get only the statistics sigma^2 and log likelihood; with Rats and Tsp it is possible to obtain more statistics, such as R, R square, Durbin Watson, standard error, etc. Is it possible using R to have the statistics mentioned? My best regards,

...39;pairlist' of 'length' > 0? but > is.pairlist(pairlist()) [1] TRUE > length(pairlist()) [1] 0 what the help page exactly means? 2005-10-14 ------ Deparment of Sociology Fudan University My new mail addres is ronggui.huang at gmail.com Blog:http://sociology.yculblog.com

It's often heard that the S language is a functional language.But What's the exact meaning of this termology in the context of S language? 2005-10-18 ------ Deparment of Sociology Fudan University Blog:http://sociology.yculblog.com