similar to: Simple question about error on CSV import

I've been trying to understand the as.Date functionality and I have a date and time stamp field that looks like this: "Tue Sep 15 09:22:09 -0600 2009" and I need to turn it into an R Date object for analysis. Simple date conversions I have down, no problem: > adate = c("7/30/1959") > as.Date(adate,"%m/%d/%Y") [1] "1959-07-30" > But when it

I have some security alert log data that I'm parsing and doing some stats on. One of the fields is the "Classtype" which is the enumerated value of the type of alert found. classtypes = factor( alerts$Classtype ) fclass_types = table( classtypes ) fclass_types gives me a frequency table of the intrusion types: fclass_types classtypes

I've posted a sample file for estimating loglinear models for square tables (mobility models) at http://www.xs4all.nl/~jhckx/mcl/R/ Comments and suggestions are welcome. John Hendrickx

Hi, I have what I think is an easy question. I have a data frame, called stockdata, of stock prices that looks like this: date ticker close 1 01/02/1998 GE 24.667 2 01/05/1998 GE 25.104 3 01/06/1998 GE 24.771 4 01/07/1998 GE 24.979 5 01/08/1998 GE 24.750 6 01/02/1998 HIT 71.125 7 01/05/1998 HIT 72.313

Hello, I have setup a samba server at my office as a PDC it stores the profiles on the server fine. I can access the profiles from any computer in the office just fine. My problem is that I work from home 4 days a week and need to access my work profile. I currently VPN into the office network via freeswan. I can log into the the domain from the vpn'd connection and I can access the samba

Dear R friends I wanted a function to make a simple percent table that would be easy for students to use. The goal originally was to have a simple thing people would call like this pctable(rowvar, colvar, data) and the things "rowvar" and "colvar" might be names of variables in data. I wanted to avoid the usage of "with" (as we now see in the table help). Then

Yesterday I asked for help about read.table with a CSV file. I received the following help. As always many thanks for the prompt responses. Now I load my csv file in a text editor ( pfe) and delete all spaces. My original mail is at the end. From: Peter Dalgaard BSA <p.dalgaard at biostat.ku.dk> Do you have spaces before the commas in your file? > Yes, number , space,

Yesterday I asked for help about read.table with a CSV file. I received the following help. As always many thanks for the prompt responses. Now I load my csv file in a text editor ( pfe) and delete all spaces. My original mail is at the end. From: Peter Dalgaard BSA <p.dalgaard at biostat.ku.dk> Do you have spaces before the commas in your file? > Yes, number , space,

Hello, This may not be a bug--but I'm not sure. I have R 1.91 installed on a machine that's running Windows XP. In Cygwin, when I attempt to use the "build" command it tells me that TMPDIR is set to an invalid directory. See the results below: stat20:/cygdrive/d/dirk/bands/implementation -> which r /cygdrive/d/Programs/R/rw1091/bin/r

Wondered about the best way to control for input variables that have a large number of levels in 'rpart' models. I understand the algorithm searches through all possible splits (2^(k-1) for k levels) and so variables with more levels are more prone to be good spliters... so I'm looking for ways to compensate and adjust for this complexity. For example, if two variables produce

Hello, Thanx in advance to anyone who can help me get this going. I have tinkered around and around with this and I have it functioning as a visible access point that I can connect to. My problem comes in when trying to access the internet. I''m not an iptables guru or anything but I got the following as my iptables startup to supposedly masq the connection correctly:

I've been experimenting some with the graphlets which S-Plus 6.1 has. Is there something similar in R? I've looked through documentations, and at SJava, but haven't found it. (If you don't know what a graphlet is, here's what it appears to be: a graphlet is a binary file that encodes information about a graph. Java uses spgraph.jar to display the graph and allow certain

I am using the R 2.2.1 in a Windows XP environment. I have a dataframe with 12 columns and 1,000 rows. (Some of the rows have 1 or fewer values.) I am trying to use rowVars to calculate the variance of each row. I am getting the following message: ?Error in na.remove.default(x) : length of 'dimnames' [1] not equal to array extent? Is there a good work-around?

I'd like to produce a series of simple line graphs for my methods class that show the three questions used on a repeated survey to make up a particular index. The data frame is: > efficacy.df year complicated havesay dontcare 1 1952 71 68 63 2 1954 NA NA NA 3 1956 64 71 71 4 1958 NA NA NA 5 1960

I need to calculate a large number of t statistics, and would like to do so via matrix operations. So far I have figured out a way to calculate the mean of each row of the matrix: d <- matrix(runif(100000,1,10), 1000, 10) # some test data s <- rep(1,ncol(d)) # a sum vector to use for matrix multiplication means <- (d%*%s)/ncol(d) This is at least 1 order of magnitude faster than

Mark Leeds <mleeds at mlp.com> wrote (to S-News): > does anyone know the R equivalent of the SPlus rowVars function ? Andy Liaw <andy_liaw at merck.com> replied: > More seriously, I seem to recall David Brahms at one time had created an R > package with these dimensional summary statistics, using C code. (And I > pointed him to the `two-pass' algorithm for variance.)

> I'm puzzled. One thing I'd try would be to get Cygwin out of the picture, > at least for a moment. Try to set TMPDIR (and maybe TMP and TEMP) to > C:\Temp, > and try to run the whole thing from a "DOS" Cmd.exe window. Here it is: D:\dirk\bands\implementation>set TMPDIR=d:\tmp D:\dirk\bands\implementation>echo %TMPDIR% d:\tmp

Hi people, If there is a fn "colMeans" why isn't there a "colSDs" etc Thanks, Phil. -- Philip Rhoades Pricom Pty Limited (ACN 003 252 275) GPO Box 3411 Sydney NSW 2001 Australia Mobile: +61:0411-185-652 Fax: +61:2:8923-5363 E-mail: pri at chu.com.au -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

Hello all, I am trying to run a two sample t-test on a matrix which is a 196002*22 matrix. I want to run the t-test, row-wise, with the first 11 columns being a part of the first group and columns 12-22 being a part of the second group. I tried running something like (temp.matrix being my 196002*22 matrix) t.test(temp.matrix[,1:11],temp.matrix[,12:22],paired=TRUE) or somthing like

https://bugzilla.samba.org/show_bug.cgi?id=7565 Summary: --check-point=<TIME> +options.c.patch +generator.c.patch Product: rsync Version: 3.0.7 Platform: All OS/Version: All Status: NEW Severity: normal Priority: P3 Component: core AssignedTo: wayned at samba.org