similar to: Converting time from HH:MM:SS to only HH:MM

Hi All, I have a data frame: Time1 Time2 1 176:46:10 41:48:06 2 171:28:57 61:19:10 3 178:25:15 34:05:35 4 74:04:20 25:01:55 5 136:11:20 37:59:32 6 138:17:17 30:22:27 7 183:04:48 29:25:02 8 179:35:01 19:29:44 > str(df) 'data.frame': 8 obs. of 2 variables: $ Time1: Factor w/ 583 levels

Hello, I am dealing with data stored in a database as a 'time' object. I export the data from the database to a text file and utilize the 'time_to_sec()' function of the database to convert the human readable time (HH:MM:SS) to seconds so that I can use R to do analysis and create charts of the data. I do not need or use days or dates in the data, and the data range is from

Hi All, I am attempting to work with some data from loggers. I have read in a .csv exported from MS Access that already has my dates and times (in 24 clock format), (with StringsAsFactors=FALSE). > head(tdata) LogData date time 1 77.16 2008/04/24 02:00 2 61.78 2008/04/24 04:00 3 75.44 2008/04/24 06:00 4 89.43 2008/04/24

Hello r-experts, I sure could us a little help. I have an ever updating text file with timestamped data in it. I can reformat in anyway I want if need be but currently I have chosen to make columns of date, time and measuresed value (comma delimeted and with the dates and times in quotes to interpret them as strings). Here is a small section of my text data file:

Not sure if there is an R way to do this or a regular express way, but here is what I am trying to do. I've got lots of data where the format is HH:MM:SS, but I need to format it like HH:MM:00, i.e. round the second down to zero. What is the best way to do this? Thanks again. Jason

Dear R-users, i have two questions : 1- first of all, i wish to know the way to obtain a serie with a format like "00" : ( "01","02","03","04"....) or like postal code ("01100","02222"). for instance, i do : > format(strptime(as.character(c(1:4)),"%H"),"%H") but it sounds complicate and not really

Hi all, I would like to set up an iterative read & write sequence to avoid reading and writing each file one at a time. Hundreds of data sets to re-calculate.? The code I have works well individually, but would like to set up an iterative read, calculate and write changing the input and output file names each iteration. I? think I have read that there is an R? feature using

This is related to my post about .chm where vitamin set me on the right path. http://forum.winehq.org/viewtopic.php?t=1026 Since then I reinstalled Ubuntu 8.04 and wine. While perusing the virgin registry I noticed the chm.file ...command key was: C:\windows\system32\hh.exe %1 There is no hh.exe located in that directory. The hh.exe file is located in the C:\windows\ directory. If wine uses the

How do people deal with R and memory issues? I have tried using gc() to see how much memory is used at each step. Scanned Crawley R-Book and all other R books I have available and the FAQ on-line but no help really found. Running WinXP Pro (32 bit) with 4 GB RAM. One SATA drive pair is in RAID 0 configuration with 10000 MB allocated as virtual memory. I do have another machine

Hi all, I am trying to merge several data sets and end up with a long data format by date & time so I can run correlations and plots. I am using Deducer as an R GUI but can just use the R console if easier. The data sets are weather with wind speed, relative humidity and temperatures by date and minute and bat activity with date, time, label, and an activity index number. The bat

I've got an array of times in H:MM:SS PM/AM format, e.g. "5:27:15 PM" (no leading zero), and I would like to convert them over to 24 HR syntax, e.g. HH:MM:SS. If it matters, the times are from the Central Time zone. Is there a command to convert the time to a 24HR format? I tried the following: ptime("5:27:15 PM", "%H:%M:%S") [1] "2009-11-04

I would like to be able to start the Wine .chm file-viewer, C:\windows\hh.exe, from the command-line like this: wine hh.exe /some/dir/somefile.chm It works if the current directory contains the .chm file, but not if I have to specify a path. Am I missing something?

Hi all, Read a string of data and had this message during a plot run. Warning message: closing unused connection 3 (Lines) Not sure what this means or if it should be of concern. Tnx.

Dear R-help, Could someone please try to explain this paradox to me? What is more likely to show up first in a string of coin tosses, "Heads then Tails", or "Heads then Heads"? ##generate 2500 strings of random coin flips ht <- replicate(2500, paste(sample(c("H", "T"), 100, replace = TRUE), collapse =

Hi all, I am trying to run some plots on data, but when loading he CSV data file R is stopping and I am getting an out of memory error. Anyway to tweak this somehow to get it to run? Using WinXP with 4 GB RAM Tnx Bruce

The software for my recent book Statistical Analysis and Data Display Richard M. Heiberger and Burt Holland http://springeronline.com/0-387-40270-5 is now available as an R package from the book's website. The package has been submitted to CRAN. Description: Support software for Statistical Analysis and Data Display (Springer, ISBN 0-387-40270-5). This contemporary

Hi all, I have been away from R for far too many months and have two questions. One is likely simple, but not found under help or in many of the available R ref., books. 1. How does one save the results of an analysis from the main console to a file without the need to copy and paste? 2. What tools (possibly Plyr or reshape) can be used to remove duplicated entries in a data matrix? I have

No, I do not use gmail, still got dirty spam email twice. -----Original Message----- From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Fowler, Mark Sent: Tuesday, April 17, 2018 12:32 PM To: Luis Puerto; Peter Langfelder Cc: R-Help ML R-Project; Neotropical bat risk assessments Subject: Re: [R] Hacked [Attention: This email came from an external source. Do not open attachments

Full_Name: Dennis Wolf Version: 1.9.0 OS: Mac OS 10.3.3 Submission from: (NULL) (160.91.76.23) platform powerpc-apple-darwin6.8 arch powerpc os darwin6.8 system powerpc, darwin6.8 status major 1 minor 9.0 year 2004 month 04 day

Dear R Group Can any body point me to a link from where I can get zip archive of the package HH for R 2.12.0? Thanks & Regards Vijayan Padmanabhan "What is expressed without proof can be denied without proof" - Euclide. Please visit us at www.itcportal.com ****************************************************************************** This Communication is for the exclusive use