similar to: as.factor does not work inside function

Hi, I saved the following as a UTF-8 encoded file named amberutil.r as.factor.loop <- function(df, cols){ if (!is.null(df) && !is.null(cols) && length(cols) > 0) { for(col in cols) { df[[col]] <- as.factor(df[[col]]) } } df } And got this warning message, > source('D:/ambertuil.r') Warning message: In readLines(file) : incomplete final line

Hi, I am using RpgSQL to retrieve data from a PostgreSQL database wich is with encoding UTF8, and I have some Chinese character in one of the columns, unfortunately R can't show it correctly. > df <- dbGetQuery(con, "select * from test") > df a b 1 1 ????????\xa2 2 2 ???? EURO\xa1 I see the following option, do I need to change the encoding option to show

Hi, I am using Rattle 2.6.4 with R 2.12.2 on win64, is this a bug ? Following is the content after execute the associate analysis process: Summary of the Apriori Association Rules: Number of Rules: 23351 Summary of the Measures of Interestingness: support confidence lift Min. :0.1250 Min. :1 Min. :2.667 1st Qu.:0.1250 1st Qu.:1 1st Qu.:2.667 Median :0.1250

Hi, I see the following is the credit scoreing in R guide : m2<-glm(formula = good_bad ~ checking + duration + history+ purpose +amount + savings + employed + installp + marital + coapp +age + other + depends + telephon + foreign +checking:amount What does checking:amount mean? Regards, Xiaobo Gu

Hi, Since we can?t access Google Groups here in China, so please forgive me if anyone has asked this question before. Sincerely Xiaobo Gu

Especially for large ff objects. Xiaobo.Gu [[alternative HTML version deleted]]

Hi, The Transparency Layer feature of Oracle R Enterprise overcomes the RAM limitation of R, and can take advantage of multiple core processing of the database server by translating R expression into SQL, what about building a open source version of the transparency layer for relational databases? Xiaobo Gu

Hi Does anybody know how to create ff objects with data reading from stream objects, such as data reading from PostgreSQL database through RPostgreSQL. For this purpose although we can save the data to a csv file through external tools and then read it through csv readers, but it requires one more data read and write operation, which is of high I/O cost for large datasets. Xiaobo.Gu

Hi Dirk I think there are problems with pg_config, the configure script of RPostgreSQL checks for pg_config and got ¡°checking for pg_config... /usr/bin/pg_config¡±. In Solaris 10u7 X64, three versions of PostgreSQL are installed, there are in /usr/postgres/8.2(8.2.9) and /usr/postgres/8.3(8.3.3), the corresponding bin files are in /usr/postgres/<version>/bin and

Hi, I post this message to the general r-help list hoping anyone within a wider range have suggestions: There are three ways to integration R and postgres, especially on 64bit Microsoft windows Platform, 1. via RODBC package, which has 32 bit and 64 bit version for windows 2. via RPostgres interface, which only has 32bit version currently 3. via plr for Greenplum, which only supports a

Hi, The read.csv.ffdf function in package ff will create the ff object physical file in the default directories, I am trying to let the files created in the paths users specify, I think the point is to make use of the asffdf_args parameter, I have a test CSV file named D:\rtemp\fftest.csv, the content of the file is as following: col1,col2,col3 1,"amber",2.4 2,"linda",4.5

A question, please about development of R packages: Are there any guidelines or best practices for deciding when and why to implement an operation in R, vs. implementing it in C? The "Writing R Extensions" recommends "working in interpreted R code . . . this is normally the best option." But we do write C-functions and access them in R - the question is, when/why is this

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Hi, Can the plenty of analytical functions provided by base R and contributed packages be called with ff objects as parameters directly, or do we have to write special version of the functions for ff objects? If it is the latter case, is there a list of functions which support ff objects already. Xiaobo.Gu [[alternative HTML version deleted]]

Hi Team, Can you please tell me the rules of assignment in R, by value or by reference. >From my about 3 months of experience of part time job of R, it seems most times it is by value, especially in function parameter and return values assignment; and it is by reference when referencing container sub-objects of container objects, such as elements of List objects and row/column

Hello all, can rsync sync some directory directlly into a compressed file format.. that way I wouldn't have to compress it myself.... when syncing again it would decompress the file, sync and re-compress :) well, maybe this is a crazy idea... !?!? cheers joao

Am am missing something or does the new ...names() in R-devel not work right? > a <- function(x, ...) ...names() > a(a=stop("a"), b=stop("b")) [1] "a" "" > a(stop("x"), stop("unnamed"), c=stop("c"), d=stop("d")) [1] NA "" "" > version _ platform

the winecfg confused me about DLL overriding. In the 'libraries' tab, if i specified a Dll file name and click 'Add', how does Wine know where to load the native file when need? does it mean i also have to copy the native file into the "c:\windows\system[32]" directory? if so, why i have to bother with the winecfg, why not directlly copy files into the

On Tue, 17 Jan 2017 04:30:31 -0800 (PST) rawi via samba <samba at lists.samba.org> wrote: > Samba - General mailing list wrote > > And there is your problem, AD lives (or dies) on DNS, unlike NT. You > > have this line 'dns-nameservers 127.0.0.1' in your smb.conf. It is > > useless, it is pointing to itself and you are not running a dns > > server, even if

Hi all, I recently install CentOS 5.2 on my Asus Z99M laptop, everything seem to works fine but there is some problem with the sound card. The system can recognized the hardware and I can even run the Realplayer for linux without any error messages, but it can't make any sound, or even noise. I have googled a lot but still can't get it work. Will anyone please guide me to solve this