Displaying 20 results from an estimated 30000 matches similar to: "Exporting/Importing selected columns of a database?"
2010 Feb 11
1
Loss of precision when importing data into R
Hi Listers,
I can't seem to figure out why I loose precision when I try to import a
comma delimited file using read.csv or read.table.
The fields of interest are rounded to one decimal place.
DataTimeStamp TerminalID Hours Minutes Latitude Longitude
Status Temperature Battery BootTimes Current Google
1 2/11/2010 12:22:21 PM 4894551 12 0 45.0 -66.5
0 30
2005 Jan 19
3
importing files, columns "invade next column"
Dear R-listers:
I want to import a reasonably big file into a table. (15797 x 257
columns). The file is tab delimited with NA in every empty space. I
have reproduced what I have used as my read.table instruction. I have
read the R-dataImportExport FAQ and still couldn't solve my problem.
(I might have missed it, of course). I'm using R.2.01 in a Mac G4,
10.3.7.
I can import the
2009 Feb 18
2
Running out of memory when importing SPSS files
Hello R-help,
I am trying to import a large dataset from SPSS into R. The SPSS file
is in .SAV format and is about 1GB in size. I use read.spss to import
the file and get an error saying that I have run out of memory. I am
on a MAC OS X 10.5 system with 4GB of RAM. Monitoring the R process
tells me that R runs out of memory when reaching about 3GB of RAM so I
suppose the remaining 1GB is used up
2006 Apr 01
4
-newbie | RODBC import query
Greetings -
After 20+ years of using SAS, for a variety of reasons, I'm using [R]
for a bunch of things - while I'm getting a pretty good a handling
[R] for script programming, and statistical analysis, I'm struggling
with 'pulling data into [R]'. For reasons beyond my control, a number
of the files I get sent to 'work with' are in Dbase format (*.dbf).
For
2006 Mar 15
3
Adding Gems and Plugins To A Shared Hosting Account?
Hi, I have a hosting account with godaddy.com and I guess after asking
about RoR, it''s now installed on both the Deluxe and Premium shared
plans. Now, it seems that I don''t have command line access (i.e ssh).
Thus, I was wondering, how does one check to see what gems are
installed and how can I add other gems? Is it possible to add gems
and plugins to the local project and
2011 Aug 29
1
Problem exporting table with many columns to dbf
Hello,
I'm newbie in R and I have a problem exporting a table with many columns to
a dbf file.
I found an error when I open the result DBF file on other software and also
importing it on R again.
Here a example snippet of the problem (on a GNU/Linux OS):
http://pastebin.com/0SMJqqwb
Is it a bug?
Thank you,
Nacho V
[[alternative HTML version deleted]]
2006 Mar 23
2
Slow database imports with active record
Hey Folks,
Im looking for some suggestions here. Each day I need to process 200 GZ
compressed files each day that contain comma delimited information in
the following format:
HostName, FileName, DirName, Modified_On
Each file contains upwards of 200K rows and works out to be about 20MB when
uncompressed. I need to compare this
information to the information recieved the day before to look for
2010 Jun 15
2
Fastest way to merge matrix columns into a comma delimited string?
Folks:
Say I have a matrix:
test=matrix(c(1,2,3),nrow=10,ncol=3)
I would like to have an output character vector where each line is
row's values delimited by commas, e.g.:
"1,2,3"
"2,3,1"
"3,1,2"
...
"1,2,3"
What is the fastest way of doing this? I can paste() row-by-row but
this seems an inefficient approach to doing this. Thanks! I'm not
2007 Jan 25
1
Running Windows Database Applications
As it seems that we will be a year or so away from database application
programs for linux like there are for windows (Foxpro, Paradox, dBASE,
Access, Visual Basic, etc.), I am attempting to use windows as a development
system (on a separate computer) and they copying the application to a linux
computer (suse 9.3 to 10.1) to see if it will run under wine.
It seems that the testing that has
2001 Aug 27
5
Importing file from Excel
Hi,
I have a basic import problem. I tried to import a
comma delimited "boston.csv" from C drive and gave the
following command at R prompt
>read.csv(c:\boston.csv,sep=",",dec=".",fill=TRUE)
Error: syntax error
can any one help to debugg the code.I am using R
version 1.3 for windows
with regards
srinivas
__________________________________________________
Do
2006 Feb 28
5
List and update installed gems?
Hi, could someone tell me how to list and update the currently
installed gems on my rails installation?
Thanks in advance,
-Conrad
2007 Jan 21
1
importing selected rows and columns from text
I read through the import/export manual a few times and did not see this
mentioned and checked the archives as well. I am dealing with data sheets
generated by Eprime (a software package for generating experimental
psychology paradigms) that output subject responses in a proprietary Edat
file format. All individual subject response spread sheets can be merged to
form one long file of all
2006 Oct 30
4
for importing "data"
*I am a very new user of R. I've spent several hours trying to import
data, so I feel okay asking the list for help. *
*I had an Excel file, then I turned it into a "tab-delimited" file, as
instructed by directions My
filename is "lahore.txt" I amusing the following commands for read.delim but
i am getting following mesages. Sir i am sending you my excel data file i
2003 Feb 13
5
ESRI shape file import and time-space models
Dear R user,
I am running R under Windows 2000.
I am looking for a routine for importing
- shape files (ESRI) into R
- dbase files (FOXPRO) into R
and I am looking for time-space models for description and prediction of
Bernoulli-, Binomial- and Poissonvaraibles.
Thank's a lot for a reply.
Sincerely yours,
Ekkehardt Altpeter
Swiss Federal Office of Public
2006 Feb 25
2
Ruby Interface Recommendations Photo Gallery Creation?
Hi, I''m looking to create a gallery index page of thumbnail images which
point to their associated images galleries. Also, I would like to organize
the images from left to right and top to bottom. Furthermore, I would like
to limit the number of thumbnail images on the page. I guess that I''m
needing some type of horizontal looping interface for both the thumbnail
index page
2006 Apr 27
3
Rails apps and TextDrive
Hi, I was wondering, does anyone have experience with deploying rails
application(s) on TextDrive. At this time, I''m only seeing an index page
remotely but on my system, I would type the following and obtain the
expected result:
http://localhost:3000/visitor/list
However, when I perform the same operation on textdrive, I''m getting the
following message on the screen:
2005 Apr 24
1
large dataset import, aggregation and reshape
Dear useRs
We have a data-set (comma delimited) with 12Millions of rows, and 5
columns (in fact many more, but we need only 4 of them): id, factor 'a'
(5 levels), factor 'b' (15 levels), date-stamp, numeric measurement. We
run R on suse-linux 9.1 with 2GB RAM, (and a 3.5GB swap file).
on average we have 30 obs. per id. We want to aggregate (eg. sum of the
measuresments under
2010 Mar 25
0
[PATCH] Win::Hivex::Regedit module for importing and exporting regedit format files.
This is the first part (of three) of a set of changes to support
merging Windows Registry entries from the common 'regedit' format.
https://bugzilla.redhat.com/show_bug.cgi?id=575738
This adds a Perl library Win::Hivex::Regedit which supports two
functions for importing and exporting the format.
I've tested this on some real output from the Windows regedit.exe
program successfully.
2006 Apr 01
2
Migrating Rails 1.0 Application to 1.1
Hi, I was wondering, what''s the steps to migrating a Rails 1.0 to 1.1?
Thanks in advance,
-Conrad
2006 Apr 09
16
Rails 1.1.2: A tiny fix for gem dependencies
The new gem version dependency system from Rails 1.1.1 needed a few
tweaks to work properly and to stop throwing meaningless warnings.
This tiny release makes up for that. To install:
* gem install rails
* rake rails:update:configs (to get the latest config/boot.rb)
This release also signals our new commitment to do more tiny releases
from the stable branch, which only gets bug fixes. So it will