Re: [R] calculate row median of every three columns for a dataframe

Anna wrote: Hi all, I need to calculate a row median for every three columns of a dataframe. I made it work using the following script, but not happy with the script. Is there a simpler way for doing this? To which Jim L responded: Hi Anna, I can't think of a simple way, but this

Re: [R] read in csv.-data file with blanks and missing values

swizz-john wrote: > Hi people, > > my task is to analyse data that is formatted like this. > > date,bid,name,w1,w2,w3,m1,m2,m3,m4,m5,m6,m7,m8,m9,m10,m11,m12,debt2mkt,cds,equity > 28jul2009,1,"ABN Amro",56.5, > 29jul2009,1,"ABN Amro",56.5, > 30jul2009,1,"ABN

Re: [R] Bus stop sequence matching problem

Homework? The list has a no homework policy - but perhaps I'll be forgiven por posting hints. In general terms, this is how I appraoched the problem: * Loop through the rows of stop_onoff - for (idx in ...someething...) {... * For each row, find the first of ref in a suitably filtered subset of

Re: [R] Unexpected behavior when giving a value to a new variable basedon the value of another variable

On Fri, 29 Aug 2014 06:33:01 -0700 Jeff Newmiller jdnew...@dcn.davis.ca.us wrote One clue is the help file for $... ? $ In particular there see the discussion of character indices and the exact argument. ...snip... On August 29, 2014 1:53:47 AM PDT, Angel Rodriguez

Re: [R] Line Graph greater than 2 variables on plot

You could also try matplot(data_object[, 1], data_object[, -1], ...) ?matplot Cheers. On Thu, 21 Aug 2014 09:55:29 +1000 Duncan Mackay dulca...@bigpond.com wrote Hi Try something like (as you have not given a reproducible example) library(lattice) xyplot(y1 + y2+ y3 ... ~ x, data =

Re: [R] How to optimizing the code for calculating the launch time

On Tue, 5 Aug 2014 09:51:56 +0300 Lingyi Ma lingyi...@gmail.com wrote My dataset: Item_IdYear_Month B65623262 201204 B58279745 201204 B33671102 201204 B36630946 201204 B63270151 201204 B63270133 201204 I have written my code to calculate one

Re: [R] R function returning a list of variable(s) conditional on the value of an option?

I don't know about better or more elegant - but see inserts below... Cheers. On Fri, 25 Jul 2014 22:22:56 +1000 Luke Hartigan luke.harti...@bigpond.com wrote Dear all, I have an R function which returns a list of variables; however, within the body of the function I would like to

Re: [R] changing x-axis in plot

On Tue, 6 May 2014 09:07:55 + Babak Bastan babak...@gmail.com wrote Hi experts I woul like to change my x-axis. Like this: 10,...,2,...,1 I am using this code: r-c(1:10) plot(r, axes=FALSE, frame.plot=TRUE,xlim=c(10,1)) axis(1,at=10/seq(1:10)) axis(2, at=axTicks(2), axTicks(2))

Re: [R] SQL vs R

On Tue, 6 May 2014 10:12:50 +0100 Dr Eberhard Lisse e...@lisse.na wrote Jeff It's in MySQL, at the moment roughly 1.8 GB, if I pull it into a dataframe it saves to 180MB. I work from the dataframe. But, it's not only a size issue it's also a speed issue and hence I don't care what I am

Re: [R] mean calculations from a dframe column

On Sun, 13 Apr 2014 05:01:40 -0700 (PDT) andre.zacha...@gmail.com andre.zacha...@gmail.com wrote Thank you very much!! .. .. *De :* arun kirshna [via R] *Envoyé :* 13 avril 2014 11:23 *À :* andre.zacha...@gmail.com *Objet :* Re: mean calculations from a dframe column Hi André,

Re: [R] Mistakes in date conversion for future date/time (POSIXct)

I _do_ see this error - on R 3.0.3 / Win XP however, not on R 2.11.1 / Linux. (Same hardware, 2 x OS, 2 x R versions) Maybe it's peculiar to to 'doze... datetimesequenz - seq.POSIXt(from=as.POSIXct(1960-01-01 00:00), to=as.POSIXct(2100-01-01 00:00), by=1 hour)

Re: [R] is it possible to get the coordinate of mtext()?

On Mon, 17 Mar 2014 15:18:50 -0700 Jinsong Zhao jsz...@yeah.net wrote Hi there, I hope to rotate the Y label of axis(4) with -90 degree. I can typeset the Y label using text() with srt = -90. However, I cannot get the coordinate of the position that mtext() used. ...cut... locator(1)

Re: [R] R Help

On Mon, 10 Mar 2014 18:26:38 + William Dunlap wdun...@tibco.com wrote You probably want to read the Introduction to R that comes with R (menu: HelpManuals (in PDF)Introduction to R). When I first started using R I found it easier to work through some of the contributed documentation.