similar to: Help: problem converting character to numeric

Dear R-experts, I am struggling with the following problem, and I am looking for advice from more experienced R-users: I have a data frame with 2 identifying variables (comn and mi), and an output variable (x). comn is a variable for a company and mi is a variable for a month. comn<-c("abc", "abc", "abc", "abc", "abc", "abc",

Dear R-users, -I am new to R, and I am struggling with the following problem. -I am repeating the following operations hundreds of times, within a loop: I want to subset a data frame by columns. I am interested in the columns names that are given by the rows of another data frame that was built in parallel. The solution I have so far works well as long as the elements of the second data frame

Dear R users, I am new to Latex and I am using the R package xtable to generate tables. I want to produce a table that is very long. in the landscape format, but I would need to rescale the table so that it fits in the page. xtable enables me to have the landscape format, but I cannot rescale it, and there seems to be a problem, if I use scalebox in Latex on my output produced with stable and the

hello all: I would like to thank those who helped me out of the string problem..but now I got another problem. I used R to query from SQL and got a list of crsp_fundno of G-style mutual funds which is still alive. I use the following codes and got what I want: library(RODBC) channel<-odbcConnect("CRSPFUND") g.crspfundno<-sqlQuery(channel,"select crsp_fundno from Fund_style

Hello all I have been working on my thesis using R. I am a newbie to R and met a problem that bothered me for a while due to my lack of acquaintance of R. I am using R to query from SQL. I got a list of crsp_fundno of G-style mutual funds which is still alive. I use the following codes and got what I want: library(RODBC) channel<-odbcConnect("CRSPFUND")

Hi, Given a date, how do I get the last date of that month? I have data in the form YYYYMM, that I've read as a date using > x$Date <- as.Date(ISOdate(substr(x$YearEnd,1,4),substr(x$YearEnd,5,6),1)) But this gives the first day of the month. To get the last day of the month, I tried > as.Date(as.yearmon(x$Date,frac=0)) But I don't get the last day of the month here. (Tried

Hi LLVM developers, Thank Daniel Sanders, Aditya Nandakumar and Justin Bogner's Tutorial[1]: Head First into GlobalISel about how to port, and Aditya took BPF target as a simple instance: bool BPFCallLowering::lowerReturn(MachineIRBuilder &MIRBuilder,                                   const Value *Val, unsigned VReg) const {   assert(!Val == !VReg && "Return value

I need to merge three datasets and don't know how. If I were using SQL, I would use df3, look up the characteristics of each date in df1 and the value for each observation in df2. df1 - unique list of Dates and characteristics of those dates Date, YYYYMM, YYYYWW, DOW df2 - the raw data Date, Place, Value df3 - all posibile combinations of Date + Place (via

Dear all, I am new in R and I have been faced with the following problem, that slows me down a lot. I am short of ideas to circumvent it. So, any help would be highly appreciated: I have 2 dataframes x and y. x is very big (70 million observations), whereas y is smaller (300000 observations). All the observations of y are present in x. But y has one additional variable that I would like to

I have a vector that contains month and year in the format YYYYMM (e.g.“200701”, “200702”) I wish to do to things: 1. I need to convert to a date that is the last calendar day of each month. 2. I need to convert this to a date that is the last U.S. stock-exchange trading day of each month. Any advice is appreciated, mymonths <- c(200701, 200702)

Hello I''ve noticed that Lustre network error, especially LND errors, are considered as maskable errors. That means that on a production node, where debug mask is 0, those specific errors won''t be displayed if they happened. Does that mean that they are harmless? Do upper-layers resend their RPC/packet if LNDs report an error? When, in my case, o2iblnd says something like

Hello I''ve noticed that Lustre network error, especially LND errors, are considered as maskable errors. That means that on a production node, where debug mask is 0, those specific errors won''t be displayed if they happened. Does that mean that they are harmless? Do upper-layers resend their RPC/packet if LNDs report an error? When, in my case, o2iblnd says something like

hi chaps: apologies, more naive beginner's questions. my data sets contain multiple time series and look like date x y 196211 12 1 196212 4 2 196301 44 5 so dataset <- read.table("data.dat", header=T); works well enough. tsdataset<- ts(dataset, freq=12, start=c(1962,11)) also seems to work. summary(tsdataset) and print(tsdataset) show that this

Hi, I am trying to create a googleVis motion chart with monthly data. When formatting the date column as a Date class variable, the plot as presented in the browser becomes considerably slower and very prone to crashing the browser. To illustrate this issue I have modified the WorldBank demo. ### objects from demo("WorldBank", package = "googleVis") M <-

Dear anyone who knows more about R than me (so everyone). I have been bashing my head on the keyboard all day trying to do something with my table. I have some data, like so: yyyy-mm Rainfall(mm) 1 1977-02 17.4 2 1977-03 34.0 3 1977-04 26.2 4 1977-05 42.6 5 1977-06 58.6 6 1977-07 23.2 7 1977-08 26.8 8 1977-09 48.4 9

Hello, I was using both version of WTLib 2007 (French and Japanese) under Unbuntu7.10 and Wine 0.9.47 and it worked fine with just an installation of VCRedist and some japanese fonts in windows folder. But recently i moved my system to the new Ubuntu8.04 with the last version of wine : 1.0 RC1. I read that i don't need to install vcredist and font anymore. It's supposed to be a platinum

Dear R experts, For quite some time I have been trying to solve a mistery of reading a seemingly trouble-free text file. The data is temperature reconstruction arranged as a huge grid, preceded by seven "header lines" (which you see better if file is opened in Firefox or Chrome). This is the data (gridded temperature reconstruction)

Hi, I post my message here because I can't debug my problem, I hope you have time to help me to find the problem. I'm trying to join my Samba machine to an ADS domain, but my "net ads join" don't work :( There is my logs, if you need more detail ask me. ~# klist Ticket cache: FILE:/tmp/krb5cc_0 Default principal: administrateur@TEST.LAN Valid starting Expires

Hi, I recently bought a Nitram Elite 2005 UPS and i installed nut to monitor it. Unfortunatly, i often have timeout errors (20 timeout per days): Broadcast Message from aurelien at berkelium (no tty) at 18:05 CET... Communications with UPS Nitram at localhost lost Broadcast Message from aurelien at berkelium (no tty) at 18:05 CET... Communications with UPS Nitram(AT)localhost

Hi, I recently bought a Nitram Elite 2005 UPS and i installed nut to monitor it. Unfortunatly, i often have timeout errors (20 timeout per days): Broadcast Message from aurelien at berkelium (no tty) at 18:05 CET... Communications with UPS Nitram at localhost lost Broadcast Message from aurelien at berkelium (no tty) at 18:05 CET... Communications with UPS Nitram(AT)localhost