similar to: strftime - Dates from Excel files

Displaying 20 results from an estimated 8000 matches similar to: "strftime - Dates from Excel files"

2011 Dec 13
4
sum with dates
How do I sum 15 years to my dataset? original dataset dates val 1 2001-01-12 1.2 2 2001-02-12 1.2 3 2001-03-12 1.2 result dates val 1 2016-01-12 1.2 2 2016-02-12 1.2 3 2016-03-12 1.2
2010 Oct 29
2
strftime vs strptime ??
Hello Could anyone explain me the difference between strftime vs strptime, please ? I've read the help but it's a little bit cionfusing for me. cheers -- View this message in context: http://r.789695.n4.nabble.com/strftime-vs-strptime-tp3018865p3018865.html Sent from the R help mailing list archive at Nabble.com.
2011 Mar 10
1
Timezone issue with strftime/strptime and %z and %Z
Hello! I've been trying to get this right for quite a while now and fear there is an easy solution I just don't see. I did not have this problem in Linux, and I searched r-help and Google but did not find a solution, but of course I am grateful for and resources I might not have found our not understood yet. I try to parse a time stamp with time zone. I essentially just want to parse the
2013 Apr 25
1
problem with geom_point in ggplot using a different column
I want to draw boxplot where the geom_points are displayed based on "ERBB2.MUT" subset and they should be displayed in the right box (based both on the "ERBB2.2064" field and "ERBB2_Status"). However, given my command I currently only see "red" points corresponding to "MUT" subset in one straight line corresponding to only "ERBB2.2064"
2008 Oct 29
1
strptime and strftime
Dear R experts.. I am trying to understand what exactly strptime and strftime do... Where can I look for the detailed notes on these two functions? In addition, how POSIX functions like POSIXct and POSIXlt are used in these functions? Regards, Santosh [[alternative HTML version deleted]]
2012 Jul 19
1
Creating Multiple Repeating samples and Cross Correlating them.
I'm having a lot of trouble getting this done and nothing I've written has been remotely successful. Basically I have about 64 binary data sets stored as vectors, with 72900 entries in each. I am not very familiar with cross correlations, but I was advised that I should create 1000 randomized date sets (used sample() for that) to use as a control, then compare the cross correlation of my
2012 Mar 01
3
Standard variance / devistion clarification
Dear gurus, Im a newbie, and I want to ask a very general question. Assume that I have a set of numbers as follows, 1, 1, 2, 10, 100, 10,1 >From these, I need to identify which number is the most different as compared to others. (in this case, it will be 100, since its way larger than the other numbers). It doesnt have to be specifically this way, but I need to identify which number(s) are
2008 Feb 04
1
strftime fails on POSIXct objects (PR#10695)
R 2.6.1 on a Thinkpad T60 running up-to-date Gentoo: Despite the documentation, which says: 'strftime' is an alias for 'format.POSIXlt', and 'format.POSIXct' first converts to class '"POSIXlt"' by calling 'as.POSIXlt'. Note that only that conversion depends on the time zone. strftime fails on POSIXct objects: > foo <-
2012 Oct 30
3
boxplots of various levels
noob here trying to make boxplots of some data i would like to separate the boxplots according to conditons of various levels for example: i have group:1 and 2, each group performed tests consisting of condition A,B,C,D side: left and right time: 1 to 10 I would like separate boxplots of the results (x) of the tests (numeric) for each group under each condition on each side over time. so far i
2012 Nov 16
2
Calculateing means
Dear List, I have a data matrix with 570 columns containing 95 (samples) with 6 replicates each. How can I calculate the mean of the replicates for 95 samples? Thank you. The information contained in this electronic e-mail transmission and any attachments are intended only for the use of the individual or entity to whom or to which it is addressed, and may contain information that is
2013 Feb 22
1
Climate Spatial plot
Dear Sir, I am beginner in using R. I am working on climate and like to plot spatial but I can't able to go ahead. I know it is too simply but not for me. Here is attached the data and my sample script. I am waiting R-users to solve my problem. Your help is valuable for me. Thank you. -- --------------------------------------------------- *Bedassa Regassa Cheneka* *Adama Science and
2013 Apr 26
1
example
Dear Sir, My name is Iut Tri Utami. i am beginning user. I have a problem about generate data in R. It consists of one disk generated by a Gaussian N(0, 0.167) and one ring generated by a Gaussian N(R, 0.1). The mean R was generated from its polar coordinates. The angle was drawn from a uniform distribution on the interval (0, 2ð), and the radius, from a Gaussian N(1.5, 0.1). The class sizes are
2012 Feb 16
2
Multiple line-plot
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2012 Jan 01
4
matrix position to list of coordinates
How can I extract a list of the positions in the matrix? > A=matrix(1:8, nrow=2,ncol=4) > A [,1] [,2] [,3] [,4] [1,] 1 3 5 7 [2,] 2 4 6 8 Something like this pos.A 1 1 1 2 1 3 1 4 2 1 2 2 2 3 2 4
2010 Jun 21
3
Polycom firmware: split vs. combined
http://downloads.polycom.com/voice/voip/sip_sw_releases_matrix.html Howdy, all. What's the difference between "split" and "combined" firmware, which can be seen at the above link? I've googled to no avail, I'm afraid. Thanks! -Ken -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
2013 Mar 15
2
Writing a hyperlink to a csv file
Hi, I was wondering if it is possible to create a hyperlink in a csv file using R code and some package. For example, in the following code: links <- cbind(rep('Click for Google',3),"google search address goes here") ## R Mailing list blocks if I put the actual web address here write.table(links,'test.csv', sep=',',row.names=F,col.names=F) the web address
2012 Sep 24
3
boxplot of different colors
Hello, I am making a boxplot of 13 boxes. I tried to color the box using 13 colors but failed. Only red and brown were displayed. Green, blue, and grey disappeared. Please kindly advise modification after checking the code below. Thank you in advance. Elaine R code # data input dataN <-read.csv("H:/a_mig_distance_B_NB/R_data/Mig_bird_586_20120925.csv",header=T, row.names=1)
2012 Feb 04
2
How to Compare the median to the mean?
Okay, so I have a homework projecr for R, and we had to input the following link as some sort of data: nb10 <- read.table("http://www.adjoint-functors.net/su/web/314/R/NB10"). Afterwards, we have to use fivenum(nb10) to find max, min, quantiles, and sd, but I'm okay with this. The next question is where I'm stuck. The question is as follows; Compare the median (use the
2007 Oct 08
2
asterisk hangs on STRPTIME
hello, running asterisk 1.4.11 on CentOS 4.5 I am getting no response on function STRPTIME() the system just hangs, STRFTIME() is working fine as seen below. Same thing happens whether I called in from a softphone or via teliax. While executing the following code : ; exten => s,n,Set(v_ts=) exten => s,n,Set(v_ts=${STRFTIME(|America/New_York|%Y-%m-%d)}) exten =>
2012 Feb 24
3
install rJava in Ubuntu 11.10
I am trying to install rJava on a WUBI Ubuntu 11.10 installation of R with no luck. I was originally trying to install the iplots package and encountered this rJava problem. Code used: install.packages("rJava") (CRAN mirrors --Canada(ON) and Canada(QC2) I installed iplots with no problem on Windows 7. I know just about zero about Ubuntu or Linux in general so I have no idea what I