similar to: R Programmer / Data Scientist (CARD.com, CA, USA)

Hello everyone, I want to import data from huge sas files with 100s of columns. The good thing is that I am only interested in a few selected columns. Is there any way to do that without loading the full dataset. I have tried two functions: (1) read.sas7bdat *[from library 'sas7bdat']*, and (2) read_sas *[from library 'haven']. *But couldn't find what I am looking for. Best

hi, the sas universal viewer might be a free, non-R way to convert a sas7bdat file to non-proprietary formats, not sure if it's windows-only. those other formats should be easier to import only a subset of columns into R.. https://support.sas.com/downloads/browse.htm?fil=&cat=74 On Thu, Aug 10, 2017 at 7:42 AM, peter dalgaard <pdalgd at gmail.com> wrote: > I had a look at this

I had a look at this a while back and it didn't seem to be easy. The path of least resistance would seem to be to use SAS itself to create a data set with fewer columns, but of course that requires you to get access to SAS. Otherwise, I think you'd have to modify sas7bdat::read.sas7bdat to drop unselected columns. That function is pure R code, so it might not be quite as hard as it

Is there any good information on doing WAP/WML/Mobile Internet Access with Ruby on Rails. I''ve tried surfing the web, but couldn''t come up with anything substancial. I would appreciate any input in this regard. Thanks in advance Gopal -- Posted via http://www.ruby-forum.com/.

I am facing a strange problem related to authentication of NT users accessing the SAMBA server. Here are the details: Server: Solaris 9, SUN Ultra 60, SAMBA 2.2.7a with PAM and WINBIND Client: Windows XP, NT4.0, 2000 Symptoms: Created a share \\server\test (UNIX: /export/SMB/test) with access to group 'TestGoup' where 'TestUser' is a member. 'TestUser' is a member of

I'm trying to find a good open source software to do sales forecasting using Holt Winters and Box Jenkins time series algorithm. Somebody pointed me that R is the best open source available for statistical computing. Are there functions to do Holt Winters and Box Jenkins time series prediction in R? If there is none, can some one point me a good GNU/freeware to do the sales forecasting using

Hi guys, I am understanding OpenCL compilation flow on GPU in order to develop OpenCL runtime for a new hardware. I understood that OpenCL compiler is part of a vendor's runtime library which is the heart of OpenCL. Since OpenCL kernel is compiled at runtime, hence at high level its compilation takes place in two steps: i. source code is first converted to intermediate code. ii.

Hi, I created a extension in Asterisk, the extension has been configured in Android softphone 3cx. When I tried to call from Andorid phone to some other IP extension which is registered in Asterisk, I am not able to hear the voice, when I check the asterisk log or wireshark there is only one way RTP traffic, from Android I am connecting to Asterisk via 2G GSM network. Any idea would be

Hello Developers, This is regards to my project plan. I am an engineering student and passionate about everything related to mobile, web and Compiler Design specially for embedded industry. I have experience of C/C++ language, developing GPU programming using OpenCL and shader language in Unix OS. I want to work on tools to make GPU computing available more simply, such as transparent LLVM

Hi, =20 I=92m looking for inspiration on how to get Samba (setup as a Domain controller)=20 To authenticate its users by AAA products like Safeword from = securecomputing (HYPERLINK "http://www.safeword.com/"www.safeword.com) or RSA SecureID =96 HYPERLINK "http://www.rsa.com/"www.rsa.com=20 =20 Would appreciate responses from you kind folks =20 Rgds Gopal --=20 No

Hi, I am using Asterisk 1.2.24, I have written my dialplan to land with an IVR with the same time if the customer knows the parties extensions they can dial directly, but what happens is sometimes its working and sometime its not working. My extensions.conf as follows, [incoming] exten => 052477302,1,Wait(2) exten => 052477302,2,NoOp(${CALLERIDNUM}) exten =>

Hi everyone, I have rhel 6.x 64-bit machine and I want to install llvm-3.3. clang-3.3. Can anyone share the download link for the rhel-6 compatible (rpm package)? Regards, Gopal -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20131209/20717fab/attachment.html>

Hi R-friends, Attached is the SAS XPORT file that I have imported into R using following code library(foreign) mydata<-read.xport("C:\\ctf.xpt") print(mydata) I am trying to maximize logL in order to find Maximum Likelihood Estimate (MLE) of 5 parameters (alpha1, beta1, alpha2, beta2, p) using NLM function in R as follows. # Defining Log likelihood - In the function it is noted as

Hi All, I want to "merge" two datasets by column "ID" and I don't want the result to be sorted by "ID". I am doing the following: > z = merge(x, y, by = "ID", sort=F) The result is not sorted by "ID". But (as oppose to what I expected) it is not even in the original order of either "x" or "y". Can

Hi R, I have an excel file in which the third column is "date" and others are "character" and "numeric". Number of columns are 12 If I use this to read the file in R: x = read.xls("D:\\file.xls") The problem is that my date column is read in julian dates. So I am using: x = read.xls("D:\\file.xls",

I am using the library(bigmemory) to handle large datasets, say 1 GB, and facing following problems. Any hints from anybody can be helpful. _Problem-1: _ I am using "read.big.matrix" function to create a filebacked big matrix of my data and get the following warning: > x = read.big.matrix("/home/utkarsh.s/data.csv",header=T,type="double",shared=T,backingfile

Hi, I am trying to connect the outbound dialing with mysql with the following code, exten => 88,1,MYSQL(Connect connid hostname username password dbname) exten => 88,2,GotoIf($["${connid}" = ""]?error,1) exten => 88,3,MYSQL(Query resultid ${connid} SELECT\ phone\ FROM\ <tablename>\ WHERE\ phone =${a}) exten => 88,4,MYSQL(Fetch fetchid ${resultid} ph\ sa)

Hi All, I have vector of length 52, say, x=sample(30,52,replace=T). I want to sort x and split into five *nearly equal groups*. Note that the observations are repeated in x so in case of a tie I want both the observations to fall in same group. This seems a very common task to do, but still I couldn't find an R function to do this. Any help would be highly appreciated. Regards Utkarsh

Hi, With reference to the mail below, I have large datasets, coming from various different sources, which I can read into filebacked big.matrix using library bigmemory. I want to merge them all into one 'big.matrix' object. (Later, I want to run regression using library 'biglm'). I am unsuccessfully trying to do this from quite some time now. Can you please

Hi All, I ran the following lines in R: print(object.size(a <- rep(1,10^6)),units="Mb") print(object.size(a <- rep(3.542,10^6)),units="Mb") print(object.size(b <- rep("x",10^6)),units="Mb") print(object.size(b <- rep("xyzxyz xyz",10^6)),units="Mb") print(object.size(b <- 1:10^6),units="Mb") print(object.size(b