Displaying 20 results from an estimated 4000 matches similar to: "Accessing files on password-protected FTP sites"
2012 Apr 04
1
Using download.file() to grab information from a Password Protected Website
I am new to R and have been spinning my wheels on the following.
*Issue:* I have a membership to a website, and I want to grab data from
the website using download.file().
download.file(url, destfile, method, quiet = T, mode = "w", cacheOK = TRUE)
The R Documentation is helpful. However, I have been unsuccessful in
figuring out how to access the website using my username and
2010 Jul 15
2
write.csv() : attempt to set 'append' ignored... Why?
I'm running R 2.11.0 on a 32-bit Windows XP machine. Whenever I try to write
a csv file with 'append' set to TRUE, I get this message: attempt to set
'append' ignored.
Obviously, this is no good, since R is deleting my previously saved data
files, rather than appending to them. What can I do to fix this?
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2011 Oct 03
2
read .csv from web from password protected site
I am very new to R and have been struggling trying to read a basic ".csv" file from a password protected site with the following code:
myURL ="http://www.frontierweather.com/degreedays/L15N15PowerRegionAverages_10weeks.txt"
test2=read.table(url(myURL),header=TRUE,sep=",")
A 'data.frame' is returned into the workspace, however it is not the data contained in
2010 Nov 17
2
Looking up the directory a file is located in
Hello everyone,
This should be an easy question, I think.
I'd like to write a command in a program to set the working directory to
whatever directory the file is currently stored in. Suppose I have a file
called "myRscript.r", and it's stored in "C:\Rprojects\myRscript.r", and it
references other R scripts and data files in the same directory.
If I enter the
2011 Oct 16
2
Suppressing the Intercept in lm() when using a dataframe for the model
It's easy to run a linear regression on a simple model without an intercept
just by doing this:
lm(y ~ x1 + x2 -1)
Is there a similar trick to suppress the intercept when your model is in a
large dataframe and you don't want to write out the names of individual
columns?
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2011 Jul 06
1
Writing dataframes side by side in a file
Is there a quick and easy way to write data frames side-by-side in a csv file
with one column separating them?
I could just fill them with empty rows so they all have the same height,
then cbind them with empty columns in between, but I'm looking for a more
elegant solution, if one exists.
Thanks in advance,
Cliff
--
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2011 Apr 21
6
What does the "<<-" operator mean?
I've been reading some code from an example in a blog post (
http://www.maxdama.com/ here ) and I came across an operator that I hadn't
seen before. The author used a <<- operator to update a variable, like so:
ecov_xy <<- ecov_xy+decay*(x[t]*y[t]-ecov_xy)
At first I thought it was a mistake and tried replacing it with the usual <-
assignment operator, but I didn't
2009 Feb 26
2
ftp fetch using RCurl?
Hi everyone,
I have to fetch about 300 to 500 zipped archives from a remote ftp server.
Each of the archive is about 1Mb. I know I can get it done by using
download.file() in R, but I am curious that is there a faster way to do this
using RCurl. For example, are there some parameters that I can set so that
the connection does not need to be rebuilt....etc.
A even simpler question is, how can I
2012 Sep 26
1
RCURL ftp upload - ASCII or Binary type?
I'm trying to upload a file using RCURL:s ftpUpload() to a ftp-server using the following command:
> ftpUpload("'VERY.ODD.FILE.NAME(+1)'",to="ftp://x.x.x.x/","' VERY.ODD.FILE.NAME(+1)'",userpwd="USER:PASSWORD")
OK
0
The file I'm trying to upload is a very simple text-file but with a bit weird filename. Note the ' on each
2012 Oct 11
1
Problems with getURL (RCurl) to obtain list files of an ftp directory
Dear all,
I have a problem with the command 'getURL' from the RCurl package, which I
have been using to obtain a ftp directory list from the MOD16 (ET, DSI)
products, and then to download them. (part of the script by Tomislav
Hengl, spatial-analyst). Instead of the list of files (from ftp), I am
getting the complete html code. Anyone knows why this might happen?
This are the steps i
2013 Feb 05
1
download and save all files from FTP site?
What are "good" ways, within R, to download all files (perhaps including
folders/directories?) from an FTP site and then save these files to a local
hard drive? Is try(getURL) {RCurl} and save() the "best" functions to
utilize? Any other suggestions?
[[alternative HTML version deleted]]
2010 Sep 16
2
FTP Download
Hi,
I have problems downloading complete folders via ftp with R. Single files
work fine.
I tried Rcurl, but it does not work.
This is my code:
url =
"ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/Derived_Products/3B42_V6/Daily/2009/"
filenames = getURL(url, ftp.use.epsv = FALSE, ftplistonly = TRUE, crlf =
TRUE)
filenames = paste(url, strsplit(filenames, "\r*\n")[[1]], sep =
2012 Apr 09
1
Listing the contents of an FTP directory via R?
R-helpers:
I'd like to be able to store all the file information from an ftp site
(e.g. file and foldernames) through an R command. Any ideas how to do
this? Here's an example site to use:
ftp://e4ftl01.cr.usgs.gov/MOTA/MCD15A3.005
--j
--
Jonathan A. Greenberg, PhD
Assistant Professor
Department of Geography and Geographic Information Science
University of Illinois at
2007 Mar 21
2
problem with RCurl install on Unix
I am having trouble getting an install of RCurl to work properly on a
Unix server. The steps I have taken are:
1. installed cUrl from source without difficulty
2. installed RCurl from source using the command
~/R_HOME/R-devel/bin/R CMD INSTALL -l ~/R_HOME/R-devel/library
~/RCurl_0.8-0.tar.gz I received no errors during this install
3. when I go back to R and require(RCurl), I get
>
2007 Mar 21
2
problem with RCurl install on Unix
I am having trouble getting an install of RCurl to work properly on a
Unix server. The steps I have taken are:
1. installed cUrl from source without difficulty
2. installed RCurl from source using the command
~/R_HOME/R-devel/bin/R CMD INSTALL -l ~/R_HOME/R-devel/library
~/RCurl_0.8-0.tar.gz I received no errors during this install
3. when I go back to R and require(RCurl), I get
>
2008 Sep 17
2
RCurl compilation error on ubuntu hardy
Dear list members,
I encountered this problem and the solution pointed out in a previous
thread did not work for me.
(e.g. install.packages("RCurl", repos = "http://www.omegahat.org/R")
I work with Ubuntu Hardy, and installed R 2.6.2 via apt-get.
I really need RCurl in order to use biomaRt ... any help would be
greatly appreciated.
Best wishes,
Emmanuel
2008 Dec 01
1
[BioC] Rcurl 0.8-1 update for bioconductor 2.7
Hi Patrick,
Greetings from !(sunny) Pittsburgh.
What's the scoop on RCurl on windows (XP)?
I've tried to install RCurl_0.92-0.zip and RCurl_0.9-3.zip,
with both R 2.7.2 and R 2.8.0 from the RGUI (utils:::menuInstallLocal),
and get the error
"Windows binary packages in zipfiles are not supported".
which (according to google's one and only hit) comes from a perl script.
2008 May 07
1
[BioC] RCurl loading problem with 64 bit linux distribution
Martin,
Well, thanks for jumping in! We need all the help we can get ;)
I changed the execute bit as you suggested and recompiled, no luck, still
the same error message.
Below is the output you wanted me to look at, its a bit beyond me so I
include both a brief grep summary and then the whole enchilada. I do note
that my output is different from yours, but I'm not sure how to interpret.
I
2008 May 07
1
[BioC] RCurl loading problem with 64 bit linux distribution
Martin,
Well, thanks for jumping in! We need all the help we can get ;)
I changed the execute bit as you suggested and recompiled, no luck, still
the same error message.
Below is the output you wanted me to look at, its a bit beyond me so I
include both a brief grep summary and then the whole enchilada. I do note
that my output is different from yours, but I'm not sure how to interpret.
I
2015 Feb 05
3
Rcurl crash in R-devel
Hello,
I don't know if the problem originates from R-devel 3.2 or Rcurl itself.
I post this message to the R-devel list and to the author of RCurl
(duncan at r-project.org).
> library("RCurl")
Le chargement a n?cessit? le package : bitops
> print(sessionInfo())
R Under development (unstable) (2015-02-03 r67717)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
Running under: