Hello,
I am importing some raw voltage multichannel measurements into an R
data frame. I need to scale each column with the respective
sensitivity for that channel. I figured how to do it, but I am curious
if there isn't a more elegant way.
Now I start with something like this:
rawdata <- data.f
7;/' )
>
> hope this helps,
>
>
>
>
> From: [EMAIL PROTECTED] on behalf of Tribo Laboy
> Sent: Sat 3/22/2008 8:21 AM
> To: r-help@r-project.org
> Subject: [R] More elegant multiplication or division of a data frame with
> avector
>
>
>
>
>
> Hel
Hi,
I am moving from MATLAB, where one can easily assign a number of
output values from a function like this:
[x,y] = myfun(a,b)
Then variables x and y can be directly used in the caller workspace.
I understand that R functions return a single argument, which could be
a list. This in a way make
Hello,
I want to be able to make a plot that has several series with
different color and linetype.
Online documentation suggest that this is possible, but I haven't found how:
"We can also create redundant mappings, mapping the same variable to
multiple aesthetics. This is most useful when produc
ale_linetype_manual(value = c(1:5))
Error in unit(values, units, data = data) :
'x' and 'units' must have length > 0
What am I doing wrong?
Regards,
TL
On Wed, Mar 26, 2008 at 2:08 AM, hadley wickham <[EMAIL PROTECTED]> wrote:
> On Tue, Mar 25, 2008 at 11:4
Hi to the list,
I am trying to find a way to painlessly move structured data back and
forth between R and Matlab (also Octave). For this purpose I found the
R.matlab package great help. I wish to use a Matlab -v6 MAT file as an
intermediary format, because it is well read by both Matlab and
Octave
n asking him to perform a post-mortem examination: he may be able to
> say what the experiment died of.
> ~ Sir Ronald Aylmer Fisher
>
> The plural of anecdote is not data.
> ~ Roger Brinner
>
> The combination of some data and an aching desire for an answer does not
&g
eric,6
#RAM Numeric,6
Now, how do I convert the result held in labpcimport back to a data frame?
Thanks in advance,
TL
On Thu, Mar 27, 2008 at 1:27 AM, Tribo Laboy <[EMAIL PROTECTED]> wrote:
> Hi to the list,
>
> I am trying to find a way to painlessly move structured data back
26, 2008 at 6:01 AM, Tribo Laboy <[EMAIL PROTECTED]> wrote:
> > Apologies! I though that the Orange dataset comes with R, but it is in
> > fact in the package "datasets".
> >
> > So here's another "Orange2" dataset for the example:
> &
Hi !
I am a new user and quite confused by R-indexing.
Make a list and get the attributes
lst <- list(x = 1:3, y = 4:6, z = 7:9)
attributes(lst)
This returns:
$names
[1] "x" "y" "z"
I can easily do:
nm <-names(lst)
or
nm <-attr(lst,"names")
which both return the assigned names of the named
;
> > -----Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Tribo Laboy
> > Sent: Thursday, March 27, 2008 12:16 AM
> > To: r-help@r-project.org
> > Subject: [R] Rule for accessing attributes?
> >
>
>
ristos Hatzis wrote:
>
> > You need to use the '@' operator to directly access attributes (not
> > elements) of objects:
> >
> >> [EMAIL PROTECTED]
> > [1] "x" "y" "z"
> >
> > See ?'@' for more detail
bpc[[k]]) == "list") {
labpc[[k]]<- as.factor(do.call("rbind", labpc[[k]]))
}
}
labpcdata <- as.data.frame(labpc)
---Code end
Regards,
TL
On Thu, Mar 27, 2008 at 4:08 PM, Prof Brian Ripley
<[EMAIL PRO
quot; "y" "z"
I can access the list elements by name directly:
lst$x; lst$y; lst$z,
But I want to do
for (k in 1:3) {
lst$nm[k]
}
But this doesn't work, basically because
lst$nm[1] returns a NULL.
So what do I do?
Thanks for helping,
TL
On Thu, Mar 27, 2008
Prof Brian Ripley
<[EMAIL PROTECTED]> wrote:
> Use [[ ]].
>
> It seems it is time for you to study a good introduction to R.
>
>
>
>
> On Thu, 27 Mar 2008, Tribo Laboy wrote:
>
> > Now, how is it that I can access the contents of a named list by
> >
I have packaged the above posted code as a function and I am posting
it here in case someonw would find it useful in the future.
--function begin -
readMat2df <- function(readfiledata, datastr){
tmpdata <- readfiledata[[datastr]] # use the string contained
Hi
It always nice to follow these discussions. There's always so much to
learn. I can't disagree with most of the article that Hadley pointed
us to, but still I can see value in double y-axis plots. I even
remember using one a few years ago. What was said about the
temperature in Celsius and in F
a.
> ~ Roger Brinner
>
> The combination of some data and an aching desire for an answer does not
> ensure that a reasonable answer can be extracted from a given body of
> data.
> ~ John Tukey
>
> -Oorspronkelijk bericht-
> Van: Tribo Laboy [mailto:[EMAIL P
> The graphics devices are very similar (they share a lot of code). One
> small difference is that PostScript has an arc primitive, and PDF does
> not.
>
Sorry for interjecting, but I have a burning question. It is a bit off
topic, so I apologize in advance.
What is the stance of the R Develo
Hello
I want to keep track of my units in the data frame. I have been
advised in the past on this list to create a new "units" attribute of
the data frame and keep the units strings there. It works fine as long
as I don't manipulate the data frame.
Here's an example:
-CODE BEGIN
Hi,
I am having some hard time figuring how to access (and modify) the
properties of an object created by ggplot.
I found 'ggopts', but it only returns some of the properties. Say I
want to get the x- and y-axis limits, the tickmark locations, legend
current position, the legend box and backgrou
Hello,
I am new useR, I have written some functions, which I currently use by
"source"-ing them from the files.
That's OK, but when I my functions start counting in the tens and
hundreds I'd be glad to be able to type
"help.search("my_obscure_fun")" and get a sensible reply. I also want
to be able
is what I get:
> library(mypkg)
Error in library(mypkg) :
'mypkg' is not a valid package -- installed < 2.0.0?
What am I missing?
Regards,
TL
On Mon, Apr 7, 2008 at 3:49 PM, Simon Blomberg <[EMAIL PROTECTED]> wrote:
>
> On Mon, 2008-04-07 at 15:13 +0900, Tribo Lab
On Mon, Apr 7, 2008 at 8:02 PM, Duncan Murdoch <[EMAIL PROTECTED]> wrote:
> Tribo Laboy wrote:
>
> > Hi Simon,
> >
> > I did the example given in package.skeleton
> >
> > f <- function(x,y) x+y
> > g <- function(x,y) x-y
> > d <- dat
On Mon, Apr 7, 2008 at 11:09 PM, Duncan Murdoch <[EMAIL PROTECTED]> wrote:
> On 4/7/2008 9:33 AM, Tribo Laboy wrote:
> ...
>
>
> > Hi Duncan,
> >
> >
> > Thanks for your reply. I checked the Rtools and the other relevant
> > tools. I will
Hi Duncan and list
I hope it is clear from my previous mails, but to make it sure again,
I am talking about R on Windows. So here's what I did.
I installed the Rtools on my home machine last night, then copied the
files and moved them to my work machine today. I set up the PATH
environment variabl
Hi Hadley,
Thanks for replying. I know that I can directly modify some of the
properties of the plot object, but I was more interested in querying
the current plot properties, something like:
xlimits <- getggopts(pobj, "x_scale_limits")
Is there anything like this implemented?
I tried to drill
ing and
then combine them in a single .Rd file when you're finished?
Yours still confused,
TL
On Mon, Apr 7, 2008 at 3:13 PM, Tribo Laboy <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I am new useR, I have written some functions, which I currently use by
> "source"-ing t
okey-dokey, one more problem resolved.
Keeping one documentation .Rd file for each R source file.
Thanks!
TL
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R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/post
Hello,
I am sure this must have been asked before, but my nabble search did
not turn anything useful. Just pointer where to look will also be
nice.
So, I have the following data:
x_test1 <- c(1:10)
y_test1<-rnorm(10)
x_test2 <- c(1:15)
y_test2<-rnorm(15)
x_test3 <- c(1:20)
y_test3<-rno
Hello,
I am sure this must have been asked before, but my nabble search did
not turn anything useful. Just pointer where to look will also be
nice.
So, I have the following data:
x_test1 <- c(1:10)
y_test1<-rnorm(10)
x_test2 <- c(1:15)
y_test2<-rnorm(15)
x_test3 <- c(1:20)
y_test3<-rnorm(20)
Th
until you have carefully
> considered what they do not say. ~William W. Watt
> A statistical analysis, properly conducted, is a delicate dissection of
> uncertainties, a surgery of suppositions. ~M.J.Moroney
>
> -Oorspronkelijk bericht-
> Van: [EMAIL PROTECTED
Hi Hadley,
Thanks for ggplot. Great piece of work. Very intuitive. The legend
always seems to be the most difficult part to implement in any
plotting package. gnuplot and RLplot come to mind.
Good luck!
On Fri, Feb 1, 2008 at 10:17 PM, hadley wickham <[EMAIL PROTECTED]> wrote:
> > just the pat
For some reason I get the following error:
"Error: could not find function "scale_colour_manual"
so I couldn't make the plots.
Otherwise I completely agree that color is good way to summarize in
the key several different models and operations performed on the same
data (it is always a trick to f
ey do not say. ~William W. Watt
> A statistical analysis, properly conducted, is a delicate dissection of
> uncertainties, a surgery of suppositions. ~M.J.Moroney
>
> -Oorspronkelijk bericht-
> Van: Tribo Laboy [mailto:[EMAIL PROTECTED]
> Verzonden: vrijdag 1
Hello,
I have a data frame with a factor column, which uniquely identifies
the observations in the data frame and it looks like this:
sample1_condition1_place1
sample2_condition1_place1
sample3_condition1_place1
.
.
.
sample3_condition3_place3
I want to turn it into three separate factor columns
("rbind", vals))
>
>
> I hope it helps.
>
> Best,
> Dimitris
>
>
> Dimitris Rizopoulos
> Ph.D. Student
> Biostatistical Centre
> School of Public Health
> Catholic University of Leuven
>
> Address: Kapucijnenvoer 35, Leuven, B
Hello,
I was wondering if there was an easy way to put information about the
measurement units used for each column of a data frame ...
Thanks for any pointers,
TL
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https://stat.ethz.ch/mailman/listinfo/r-help
PLEAS
Hello,
I am trying to figure out how to make a bode plot (a.k.a. bode
diagram) in ggplot2.
An example of such a diagram can be found here:
http://meweb.ecn.purdue.edu/~me475/ctm/freq/bode2.GIF
The example above shows the gain and phase characteristic of a linear system.
In my case, I would like
719.8
>
> #2. add a "units" attribute to each column
>
> > attr(BOD$Time, "units") <- "days"
> > attr(BOD$demand, "units") <- "mg/l"
> > attr(BOD$Time, "units")
> [1] "days&
On Thu, Feb 7, 2008 at 7:57 PM, Gavin Simpson <[EMAIL PROTECTED]> wrote:
>
> On Thu, 2008-02-07 at 19:32 +0900, Tribo Laboy wrote:
> > Hello,
> >
> > I was wondering if there was an easy way to put information about the
> > measurement units
(Greg) L. Snow Ph.D.
> Statistical Data Center
> Intermountain Healthcare
> [EMAIL PROTECTED]
> (801) 408-8111
>
>
>
>
>
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Tribo Lab
Hi Hadley and Thiery
Thanks for the responses.
I worked through the code provided by Thiery and at the end I realized
that the scales for the phase and the gain are the same, which in
practice is not the case. Then I read Hadley's comment and worked with
it a bit too. It is already quite late he
Hello!
I am working with signals and a plot of several signals on the same
axes can get quite messy. With lines that are very fractured,
distinction by only the linestyle is not very clear. If I add symbols
to the plot however, there are so many symbols, that they overplot and
the whole plot is un
"Test 1", "Test 2", "Test 3"), inset=0.05,
bg='white')
#--END CODE SNIPPET---
On Mon, Feb 25, 2008 at 2:05 PM, Gabor Grothendieck
<[EMAIL PROTECTED]> wrote:
> Try this:
>
> pch <- c(&
On 2/26/08, hadley wickham <[EMAIL PROTECTED]> wrote:
> > Maybe someone can help with the ggplot version of this thing?
>
> Your best bet is just to wait a couple of weeks until the next version
> of gglot2 comes out :)
>
> Hadley
>
>
> --
> http://had.co.nz/
>
I'm certainly looking forward to it!
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