Dear list,
I'd like to use path.analysis in the package agricolae in batch format on
many files, retrieving the path coefficients for each run and appending them
to a table. I don't see any posts in the help files about this package or
the path.analysis package. I've tried creating an object out of
Dear List,
I'm stuck on what seems like a simple indexing problem, I'd be very grateful to
anyone willing to help me out.
I queried a dataframe which returns a character vector called "plot". I have
another dataframe from which I want to subset or select only those rows that
match "plot".
ingsAsFactors=FALSE)
> nums = c(3,4,6,7,9,10,12,13,15,16,18,19)
> res[,nums] = sapply(res[,nums],as.numeric)
>
> Hope this helps.
> - Phil Spector
> Statistical Computing Facility
> Department of Statistics
> UC Berkeley
> spec...@stat.berkeley.edu
>
>
>
> On Mon, 19 J
Dear list,
I'm trying to download a text file directly from the internet using the RCurl
package and the command getURL. Duncan Lang graciously helped me solve the
first step in this problem using the following command:
#
txtfile <-
getURL('ftp://ftp.wcc.nrcs.usda.gov/data/s
ccess restrictions apply.
>
> --
> 19: In download.file(url, dest) :
> ---
>
> --
> 20: In download.file(url, dest) : Got 230
> 21: In download.file(url, dest) : Invalid answer to PASV
>
> Since you are on Windows, using --internet2 (see the rw-FAQ) might
> work.
Dear list,
I am trying to download a text file from an ftp site using download.file().
I used the following code:
url <-
"ftp://ftp.wcc.nrcs.usda.gov/data/snow/snow_course/table/history/idaho/13e19.txt";
dest <- "c:/test/downloadtest.txt"
download.file(url, dest)
I get this error message, ind
Dear list,
I would like to plot 2 series of numbers with very different ranges/scales as
lines on the same plot. I assumed this is commonly done and easy, but I have
not found any help files (e.g. axis() or matplot() that show how. I've searched
many old posts to no avail.
I'll be very gra
Greetings R list,
I am stuck on a simple syntax problem. I want to list all files in a directory,
excluding files of a certain type. I have tried pattern matching as follows:
a <- list.files(data, full.name = TRUE, pattern != ".xml") # exclude all .xml
files
The warning returns that
Dear R wizards,
I have a folder containing 1000 files. For each file, I need to extract the
first row of each file, paste it to a new file, then write out that file. Then
I need to repeat this operation for each additional row (row 2, then row 3,
etc) for 23 rows in each file.
I can do this
Dear list,
After searching many old posts, I can't find the solution to a simple problem.
can someone tell me how to create a character string with multiple backslashes,
as in:
file_dir <- c("C:\files\data\")
I need to create this string and then paste it to many files names for batch
Dear list,
I've recently installed R on a 64 bit machine with 8 GB of RAM. I set this
computer up as a dual-boot system, with windows XP 64 and Ubuntu 7.10. I
downloaded the Linux 64 bit version of R and installed it.
I'm trying to run rather large Random forest models and was running into
Dear list,
Below I've written a clunky for loop that counts NA's in a row, replacing all
with NA if there are
more than 3 missing values, or keeping the values if 4 or more are present.
This is sample code from a very large
dataframe I'm trying to clean up.
I know there are many simpler mor
Dear list,
I'm trying to query a string of numbers to identify where in the string the
numbers stop increasing (where x[i] == x[i+1]). In example 1 below, I've
adapted code from Jim Holt to do this. However, I run into situations where the
condition is not met, as in example 2, where the number
Dear list,
I'm trying to write my first looping function in R. After many hours of
searching help files and previous posts, I'm at wits end. Please forgive my
programming ignorance...any help is greatly appreciated.
I need to sort through a vector (x) and identify the point at which 2
success
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