> Date: Tue, 26 Oct 2010 12:53:14 -0400
> From: mike...@gmail.com
> To: j...@bitwrit.com.au
> CC: r-help@r-project.org
> Subject: Re: [R] runtime on ising model
>
> I have an update on where the issue is coming from.
>
> I commented out the code for "
Hi everyone,
I have been using R too long to have to ask this but here i am. How do i
create a separate bin for the 0 value? So for:
#Create data frame
DF<-data.frame(A=0:20)
#Create label vector
labs<-1:6
#Create buckets and label
DF$Cut<-cut(DF$A,c(0,4,8,12,14,16,20),labels=labs,include.l
Hi,
I am working with a dataset for sometime and I need some help in parsing
some data.
There is a column called "Duration" which has data like following:
2 minutes => 120
2 min => 120
10 seconds =>10
2 hrs =>7200
2-3 minutes => 150 or 120
5 minutes (when i arrived => 300
Flyby approx 20 sec. =
Hi,
I am now using R to implement a stepwise algrithom which includes a
recursion function.
e.g:
a = 1
*f_recursion* = function(id)
{
b = a + id; #: row A
if (...){ a = a +1;* f_recursion*(b) } #: row B
else{ }
}
--
How can I expose the code behind plot.survfit??
Thanks a lot.
Stephen B
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On 26/10/2010 5:17 PM, Xiuquan Wang wrote:
Hi,
I am now using R to implement a stepwise algrithom which includes a
recursion function.
e.g:
a = 1
*f_recursion* = function(id)
{
b = a + id; #: row A
if (...){ a = a +1;* f_recursion*(b) } #: row B
Thanks a lot, Douglas. It's very heplful.
A clarification question about specifying the model in lmer. You said
it should be:
mix.lmer <- lmer(DV ~a+b+c+d+(e+f+g+h+ii|group), mydata)
I assume it was a typo and you meant that the last predictor in
brackets should be i (rather than ii), right?
Als
Peter Francis me.com> writes:
>
> Dear List,
>
> I am looking to plot error bars on a line using dispersion.
>
> I have values for the upper value and for the lower values, however
> i am unsure how to plot different values
> for the upper CI and the lower CI?
>
> I have been using
>
> disp
Bond, Stephen cibc.com> writes:
>
> How can I expose the code behind plot.survfit??
library(survival)
survival:::plot.survfit
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On 10/26/2010 2:33 PM, Bond, Stephen wrote:
How can I expose the code behind plot.survfit??
Uwe Ligges. R Help Desk: Accessing the sources. R News, 6(4):43-45,
October 2006.
http://cran.r-project.org/doc/Rnews/
Thanks a lot.
Stephen B
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--
I don't know why I forgot that you can do this as well :
area.poly(intersect(p1,p2))
... a bit more straightforward.
greetings,
Remko
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Dear List,
I am using the command plot to present the relationship
between bird richness (Y axis) and elevation (X axis).
However, I would like to observe
the distributions of bird richness in different administrative areas (A, B,
C,
., G) in this plot.
For example, the dots in area A mig
On Oct 26, 2010, at 2:59 PM, Ben Hunter wrote:
> Hi everyone,
>
> Why am I having such a tough time finding a way to put an mlogit summary
> table into latex? Everywhere I read says that using Sweave and latex is the
> most sophisticated, dynamic way to get output, but it appears very limited
> i
There are several ways to do this but the package ggplot2
library(ggplot2)
qplot(displ,hwy,data=mpg,colour=factor(cyl))
On Wed, Oct 27, 2010 at 9:06 AM, elaine kuo wrote:
> Dear List,
>
>
>
> I am using the command plot to present the relationship
>
> between bird richness (Y axis) and elevatio
On Tue, Oct 26, 2010 at 3:13 PM, Daisy Englert Duursma
wrote:
> There are several ways to do this but the package ggplot2
>
> library(ggplot2)
> qplot(displ,hwy,data=mpg,colour=factor(cyl))
>
>
That can of course be done also using the standard plot command
(substitute variable names as necessar
On Tue, Oct 26, 2010 at 12:16 PM, Tal Galili wrote:
> Hello all,
>
> I wish to learn a version control system for managing my R (data analysis)
> projects.
>
> I know of SVN and github, and wonder if there is any reason for which I
> should prefer the one over the other (or any other platform). An
> The caret package has answers to all your questions.
>> 1) How to obtain a variable (attribute) importance using
>> e1071:SVM (or other
>> svm methods)?
I haven't implemented a model-specific method for variables importance
for SVM models. I know of one package (svmpath) that will return the
re
> 1. What is everyone else using? The network effect is important since
> you want people to be able to access your repository and you want to
> leverage your knowledge of the version control system for other
> projects' repositories. To that extent Subversion is the clear choice
> since its used
Hi,
This might be me missing something painfully obvious but why does the cube root
of the following produce an NaN?
> (-4)^(1/3)
[1] NaN
>
As we can see:
> (-1.587401)^3
[1] -4
Thanks!
Greg
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On Tue, 26 Oct 2010, Marc Schwartz wrote:
On Oct 26, 2010, at 2:59 PM, Ben Hunter wrote:
Hi everyone,
Why am I having such a tough time finding a way to put an mlogit summary
table into latex? Everywhere I read says that using Sweave and latex is the
most sophisticated, dynamic way to get out
Look at this:
> x <- as.complex(-4)
> x
[1] -4+0i
> x^(1/3)
[1] 0.793701+1.37473i
> (-4)^(1/3)
[1] NaN
It seems that R gives you the principal root, which is complex, and
not the real root.
Kjetil
On Tue, Oct 26, 2010 at 8:05 PM, Gregory Ryslik wrote:
> Hi,
>
> This might be me missing somethi
On Tue, Oct 26, 2010 at 3:28 PM, Susanta Mohapatra
wrote:
> Hi,
>
> I am working with a dataset for sometime and I need some help in parsing
> some data.
>
> There is a column called "Duration" which has data like following:
>
> 2 minutes => 120
> 2 min => 120
> 10 seconds =>10
> 2 hrs =>7200
> 2
hmm interesting. When I did -4^(1/3) got the correct answer, but then again
that's because it processes the negative later. i.e. -4^(1/2) gave me -2
instead of the 2i I expected. Also when I did (-4+0i)^(1/3) it gave me
0.793701+1.37473i. Possible bug?
Sachin
--- Please consider the environment b
To take it one step further:
> x <- as.complex(-4)
> cx <- x^(1/3)
>
> r <- complex(modulus = Mod(cx), argument = Arg(cx)*c(1,3,5))
> r
[1] 0.793701+1.37473i -1.587401+0.0i 0.793701-1.37473i
> r^3
[1] -4+0i -4+0i -4+0i
>
So when you ask for "the" cube root of -4, R has a choice of three p
On Tue, Oct 26, 2010 at 7:17 PM, Gabor Grothendieck
wrote:
> On Tue, Oct 26, 2010 at 3:28 PM, Susanta Mohapatra
> wrote:
>> Hi,
>>
>> I am working with a dataset for sometime and I need some help in parsing
>> some data.
>>
>> There is a column called "Duration" which has data like following:
>>
Try this:
cut(DF$A, c(-Inf, 0, 4, 8, 12, 14, 16, 20))
On Tue, Oct 26, 2010 at 7:01 PM, LCOG1 wrote:
>
> Hi everyone,
>
> I have been using R too long to have to ask this but here i am. How do i
> create a separate bin for the 0 value? So for:
>
> #Create data frame
> DF<-data.frame(A=0:20)
I have been searching the documentation for some time nmow, but cannot find it.
It must be possible to download packages (many), but only install the
help system?
How?
Kjetil
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G'day Gregory,
On Tue, 26 Oct 2010 19:05:03 -0400
Gregory Ryslik wrote:
> Hi,
>
> This might be me missing something painfully obvious but why does the
> cube root of the following produce an NaN?
>
> > (-4)^(1/3)
> [1] NaN
1/3 is not exactly representable as a binary number. My guess is tha
install.packages('sos')# if you don't have it already
library(sos)
rs <- ???roots
# 216 matches
summary(rs)
# in 106 packages
rs # opens a web browser with all 216 matched in a table
# listing the package with the most matches first.
# This included roots{signal}, which referenced polyroot{base},
Because it is implemented as
antilog((1/3)*log(-4))
most likely using base 2 for the log/antilog functions.
"Gregory Ryslik" wrote:
>Hi,
>
>This might be me missing something painfully obvious but why does the
>cube root of the following produce an NaN?
>
>> (-4)^(1/3)
>[1] NaN
>>
>
>As we ca
Hi All,
I am learning R and having a little trouble with the usage and proper
definitions of data.frames vs. matrix vs vectors. I have read many R
tutorials, and looked over ump-teen 'cheat' sheets and have found that
no one has articulated a really good definition of the differences
between 'data.
G'day Bill,
On Wed, 27 Oct 2010 10:34:27 +1100
wrote:
[...]
> It is no surprise that this does not work when working in the real
> domain, except "by fluke" with something like
>
> > -4^(1/3)
> [1] -1.587401
> >
>
> where the precedence of the operators is not what you might expect.
> Now th
On Tue, Oct 26, 2010 at 8:37 PM, Matt Curcio wrote:
> Hi All,
> I am learning R and having a little trouble with the usage and proper
> definitions of data.frames vs. matrix vs vectors. I have read many R
> tutorials, and looked over ump-teen 'cheat' sheets and have found that
> no one has articul
I have two sets of data
national wide: total patient number=500,000, 8400 died, mortality rate=1.7%
Hospital1: total patient number=230, 6 died, mortality rate=2.6%
Is the mortality rate of hospital1 different from mortality rate of nationl
wide?
Which function or package should I use to solve
Hi R-users
I am trying to use the GAM function of the mgcv package. But I am having
problem trying to specify the k parameter.
Although I managed to run some models by giving to the parameter some
(random) value, and it is explained by Wood (2006) that it does not seem
to "really" affect th
When ever I write a table of columns to a csv file the columns are offset by
one column and do not match the column headers. How do I align my columns
with the column headers? Also, how do I change the name of my column
headers.
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Hi,
I have tab-delimited data with an unequal number of entries per column, of
the sort:
A B C
1 2 2
3 4 1
5 2 2
6 2
5 2
3
6
2
I would like to make a histogram of the frequencies of each represented
number in a "stacked" histogram, where you can see the contribution of eac
This probably fixes it, although an example would be nice :
write.csv(dfr, row.names=FALSE)
you change the names with the ?names function before writing it to a csv
file.
remko
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?prop.test
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Actually I want to see how close are some point to a line segment so I want
to
use some zoom lenses and zoom in and out into different parts of the plot and
see how some places look like.
Best Regards
From: Greg Snow
Sent: Tue, October 26, 2010 6:47:32 P
On Tue, 26 Oct 2010, Kjetil Halvorsen wrote:
I have been searching the documentation for some time nmow, but
cannot find it. It must be possible to download packages (many), but
only install the help system?
I am not sure what you actally want: R CMD INSTALL does not install
the Rd files --
Hello useRs,
I'm pleased to announce the general availability of the R package
futile.paradigm, which is a language extension that implements
functional dispatching in R. This is an alternative to the current
object-oriented styles, replacing them with a functional programming
style that provides
In this particular case it is part of the C99 stanadrd (7.12.7.4) for
the 'pow' function R uses.
On Wed, 27 Oct 2010, Berwin A Turlach wrote:
G'day Gregory,
On Tue, 26 Oct 2010 19:05:03 -0400
Gregory Ryslik wrote:
Hi,
This might be me missing something painfully obvious but why does the
cu
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