On Mon, 2011-05-16 at 13:18 -0700, olafgy wrote:
> Hi there,
>
> I am trying to import 100 files with the names of "vpn 1 .dat" to "vpn 100
> .dat"
> into a respective table calld vpn1 to vpn100.
>
> I therfore have created a variable X<-1:100
>
> I not want to use X as a subtitute for the numb
On Mon, 2011-05-16 at 17:01 -0300, Nilza BARROS wrote:
> Hi, Jerome
>
> I was trying to use RMYSQL
>
> for (i in length(Query)) {
> rs1<-dbSendQuery(con,Query[i])
> }
>
> But although the Query have several lines the command above just feed
> my database with the first one.
>
> > Query
> [
On Mon, 2011-05-16 at 14:55 -0300, Nilza BARROS wrote:
> Dear R-user,
>
> I have to feed my database using some SQL commands. I have already read a
> data frame with the data I need but
> after that these data should be write in a file wtih SQL commands.
>
> 1) My dataframe:
>
> dput(Alldados)
On Mon, 2011-05-16 at 08:40 -0700, Neera Thapa wrote:
> Hello..
> I am currently working on running random forest to make predictions. For that
> I
> have a bunch of.dbf files from shapefiiles. Earlier I was running random
> forest
> on those dbf files individuallybut now I have >1,000 such fi
On Thu, 2011-05-12 at 06:40 -0700, Mr.Q wrote:
> Hello,
>
> How can i scale my time series in a way that 90% of the data is in the
> -0.-9/ +0.9 range?
>
I have two methods to suggest. One that uses the ranks to scale, hence
is nonparametric and will work with any data distribution. The other
u
On Wed, 2011-05-04 at 22:41 +0300, johannes rara wrote:
> I have a string like this
>
> st <- "SELECT COUNT(empid), COUNT(mgrid), COUNT(empname),
> COUNT(salary), FROM Employees"
>
> How can I remove the last comma before the FROM statement?
gsub(",[^,]*FROM ", " FROM ", st)
HTH,
Jerome
__
On Tue, 2011-05-03 at 10:36 -0600, Ryan Utz wrote:
> Hi all,
>
> I'm attempting to make a quite-specific plot where the axes cross at the
> origin and with gridlines for guidance. I've been using ablines to create
> the reference lines because I want a lot of control as to where they are
> placed
On Mon, 2011-05-02 at 16:42 -0700, Mike Smith wrote:
> I'm trying to create a list of Data Frames. I have 17 data frames
> that I need to move through in a loop, but if I simply make a list of
> them, then they do not stay data frames, and I can't sort through
> them. I tried to create an array,
On Thu, 2011-04-28 at 23:08 -0400, Chee Chen wrote:
> Dear All,
> I would like to define a function: f(x,y,z) with three arguments x,y,z, such
> that: given values for x,y, f(x,y,z) is still a function of z and that I am
> still allowed to find the root in terms of z when x,y are given.
> For ex
On Tue, 2011-04-26 at 16:15 -0400, Bruce Kindseth wrote:
> I have a large amount of data which I break down into a collection of
> vectors of 100-125 values each. I would like to test the normality of the
> vectors and compare them. In the interactive mode I can test any one vector
> using the Sh
On Tue, 2011-04-26 at 19:46 +0200, ivan wrote:
> Hello,
>
> given that a self made function produces multiple outputs, is there a
> possibility to separate latter by stars or simply by blank lines? Are there
> funtions for the arrangement of the output in general?
You can create a class for your
On Mon, 2011-04-25 at 12:52 -0500, Wendy Han wrote:
> I want to let R automatically download available files from a website in
> certain folders. Since the files I need, if exist, are in a certain
> directory, I used download.file() function with a predesigned directory.
> However, some of the fold
On Fri, 2011-04-22 at 10:02 -0700, derek wrote:
> Hello R,
>
> I would like to find out how to generate array full of functions. I tried it
> like this:
>
> fv=array(,dim=c(1,10))
> V=c(1:10)
> for (i in 1:10){
> fv[i]<-function(x)(V[i]-b*a*x) # b, x are constants.
> }
>
> But it returns:
> "inc
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