I haven't used r in quite a while but would like to get back into it. I
have a problem that I would like to solve with r. I have some multinomial
data that looks to follow an asymmetric sigmoidal growth pattern. Solving
a multinomial gompertz partial differential equation in r is what Im after.
Wo
Berend,
I am working with a time series data.The log-likelihood is to be maximized
for a set of parameters.
Lets say that x1 and x2 are the output from two successive iterations.I am
trying to find out,
*if(all(abs(x1-x2)<.0001,say))*
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count.fields() is reporting a single field in each row of your file. Are you
sure the separator is a tab ("\t")? In your original query you used a
semicolon.
Try
readLines("/Users/kama/Analysis/GDP10.csv", n=10)
to look at the first 10 lines.
--
Dav
My $.02: re-do an analysis that you did in another software package in R,
making sure that you get the same results. A good way to learn any
language.
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Sent from the R help mailing list archive at N
I wish to create a table in which the foreground is a number (abundance) but
the background is a visual representation of a ratio (shallow:deep). In
other words, the background of each cell of the table would be two colours
or patterns set in a similar fashion to a stacked bar in a bar graph based
Thanks for your reply.
On
http://cran.r-project.org/bin/windows/Rtools/
Frozen
Rtools216.exe R >2.15.1 to R 2.16.x No
Frozen means "no available" ?
So, PortfolioAnalytics cannot be used on Linux or Win until Mar. 2012 ?
Are there substitutes ?
Any help will be appreciated.
> Date: S
Hi everyone,
I met a erro on the HP-UX system when I compile with the
R-2.15.2.tar.gz. the command and erro are shown as follows, I try many times
hope anyone can help me. Thanks!
$ cd R-2.15.2
$ bash ./configure --with-readline=no --with-x=no
checking build system type... ia64-hp-hpux
Hi
I have one data set with 20 variables. I want to find the length of each
variables at a time. Please help me ..
Thanks in advance
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Sent from the R he
Hi Simon,
Thanks for your help. I've got another question if you don't mind -- is
it possible to "swap out" a set of coefficients of a gamObject in order
to change the results when that gamObject is plotted? The (silly)
example below illustrates that this is possible with the Vp matrix. But
What does this have to do with R?! This is nonsense.
-- Bert
On Sun, Dec 2, 2012 at 6:34 PM, Jim Lemon wrote:
> On 12/02/2012 08:18 PM, Solmaz Filiz KARABAÄ wrote:
>
>> Dear R user!
>> I have a small question!
>> I have calculated the relative importance of the variables.
>>
>> However I woul
fig=TRUE is irrelevant here, and knitr does not need fig=TRUE at all
(plots are automatically recorded).
The real problem is the [preview] option; remove it and you are all set.
Next time if you have problems with tikzDevice, you can take a look at
the LaTeX log to know what exactly is wrong, e.g
On 12/03/2012 02:48 PM, David Winsemius wrote:
It appears to me that rahul143 is a spammer who has automatated
extraction of old posts to Nabble as a way of delivering advertisements.
Hi David,
Very good detective work. I hadn't followed the link and seen the
advertisement that has been paste
It appears to me that rahul143 is a spammer who has automatated
extraction of old posts to Nabble as a way of delivering
advertisements. This is an exact copy of a posting to Nabble on
Mar 28, 2011; 2:33pm Worik StantonSullivan, Timmerman and White
1999: TA rules, and R
[Apologies if I
Adam Zeilinger umn.edu> writes:
>
> Dear R Help,
>
> I have two nested negative log-likelihood functions that I am optimizing
> with the spg function [BB package]. I would like to perform model
> selection on these two objective functions using AIC (and possibly
> anova() too). However, th
On 12/02/2012 10:57 PM, Mkkl wrote:
function<- function(p){
i<- 2
r<- 0
while(i< p) {
q<- (p/i)
while(q>=1) {
q=(q-1)
}
if (q==0) {
r=1
} else
i=i+1
}
return(r)
}
This f
On 12/03/2012 12:18 PM, Ben Bolker wrote:
rahul143 gmail.com> writes:
I have a strong suspicion that this person is a spammer.
When I saw the almost unbroken list of posts, I wondered what might be
going on myself. We are already familiar with those who repeatedly ask
ill-formed ques
Hello all, do you know how to mix three different classification techniques
using R. For example if I have lm regression, svm and neural nets how can I mix
them to have something like ensemble learning?
Thank you,
Tania
Sent from my iPod
__
R-help@r-
On 12/02/2012 08:18 PM, Solmaz Filiz KARABAĞ wrote:
Dear R user!
I have a small question!
I have calculated the relative importance of the variables.
However I would like to compare the relative importance of two different
groups of variables (i.e Strategy and industry)
For example let me say t
rahul143 gmail.com> writes:
>
I have a strong suspicion that this person is a spammer.
Evidence:
1. 24 e-mails to the r-help list in a little over an
hour, which is excessive even for a real person.
2. The questions range extremely widely, especially for
a beginner in R.
3. All of
Hi
I'm trying to understand the names of the output I get from extracting the
loadings and the factor scores from fa()
when I export to csv the $loadings I get the following columns in this order:
MR4, MR3, MR2, MR6, MR7, MR5, MR1, MR8, MR10, MR9, MR11
When I export to csv the $scores I get th
Google "Learn R" (What else!)
-- And please do not post here further until you have done some studying.
-- Bert
On Sun, Dec 2, 2012 at 3:55 PM, Rui Barradas wrote:
> Hello,
>
> An Introduction to R, file R-intro.pdf comes with every installation of R,
> folder R/doc.
> And there are many boo
Hello,
Search the option 'fill' in the help of the function 'read.table'.
Regards,
Pascal
Le 03/12/2012 04:19, F86 a écrit :
Dear R-users,
When i try -
Data1<-read.table("/Users/kama/Analysis/GDP10.csv",header=TRUE,sep=";") i
am getting this error: Warning message: In scan(file, what, nmax,
Hi,
I am trying to install a package (PortfolioAnalytics) of R 2.15.2 on Win 7.
I have tried the following instructions on :
http://stackoverflow.com/questions/11105131/cannot-install-r-forge-package-using-install-packages
I used svn checkout svn://svn.r-forge.r-project.org/svnroot/returnana
Hello,
An Introduction to R, file R-intro.pdf comes with every installation of
R, folder R/doc.
And there are many books available at http://www.r-project.org/. (Choose
the link Other at the left.)
Good luck.
Hope this helps,
Rui Barradas
Em 02-12-2012 22:45, Akrem Zoghlami escreveu:
Dear
Hello,
Because p/i == 4/2 == 2 thenyou subtract 1 unil q == 0 and i = i+1 is
never executed.
(Use print statements to check it.)
Hope this helps,
Rui Barradas
Em 02-12-2012 11:57, Mkkl escreveu:
function <- function(p){
i <- 2
r <- 0
while(i < p) {
q <- (p/i)
while(q
Don't double post.
I believe R Studio provides this.
MW
On Sun, Dec 2, 2012 at 4:14 PM, rahul143 wrote:
> What's the best object browser?
>
> Dear all,
>
> I have tried all the popular R IDE or editors like Eclipse, Komodo, JGR,
> Revolution...
> They all have fancy fucntions like auto completi
On Sun, Dec 2, 2012 at 10:45 PM, Akrem Zoghlami wrote:
> Dear R-help group,
>
> I'm a R beginner and I find difficulty in manipulating R. Could you send to
> me a support that helps me to be familiar with R. Thank you in advance
>
Try typing
help.start()
at your prompt. This will bring up the m
Look at Dirk's RInside package.
MW
On Sun, Dec 2, 2012 at 4:38 PM, rahul143 wrote:
> Hi,
>
> I am in the process of linking a C/C++ application to the R.dll
> directly. I have obtained the R source code and compiled it
> successfully. I have also successfully linked the R.dll directly into
> o
You should have better response posting to the r-sig-mixed-models list
(repeated measures are mixed effects models).
-- Bert
On Sun, Dec 2, 2012 at 12:18 PM, Giuseppe Pagnoni wrote:
> Dear all,
>
> I am having quite a hard time in trying to figure out how to correctly
> spell out a model in R (a
?which.max
MW
On Sun, Dec 2, 2012 at 4:44 PM, rahul143 wrote:
> I found:
> max.col(matrix(c(1,3,2),nrow=1))
> Is there a more concise/elegant way?
> Thanks,
>
>
>
>
> -
>TO GET MORE DETAILS CLICK HERE
>
>
>
>
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/findi
?which.max
On Mon, Dec 3, 2012 at 3:44 AM, rahul143 wrote:
> I found:
> max.col(matrix(c(1,3,2),nrow=1))
> Is there a more concise/elegant way?
> Thanks,
>
>
>
>
> -
>TO GET MORE DETAILS CLICK HERE
>
>
>
>
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/finding
Easiest way: copy and paste the code into Rstudio and hit "compile pdf".
>From the command line, I believe you can do "knit2pdf example.Rnw".
Shige
On Sun, Dec 2, 2012 at 6:12 PM, Duncan Murdoch wrote:
> On 12-12-02 5:42 PM, Shige Song wrote:
>
>> I am having problem making ggplot2, tikzDevice,
On Sun, Dec 2, 2012 at 11:35 AM, rahul143 wrote:
> I have been trying to install RMySQL on Windows 7 following the
> procedure at:
> http://biostat.mc.vanderbilt.edu/wiki/Main/RMySQL
>
> I think I have properly installed RTools and created a proper
> Renviron.site file saying:
> MYSQL_HOME="C:/Pro
I believe I answered this a few weeks ago at this link:
https://stat.ethz.ch/pipermail/r-help/2012-November/328053.html and
following.
Michael
On Sun, Dec 2, 2012 at 2:43 PM, rahul143 wrote:
> Dear folks--
>
> Suppose I have an expression that evaluates to a string, and that that
> string, were
On 12-12-02 5:42 PM, Shige Song wrote:
I am having problem making ggplot2, tikzDevice, and knitr working together.
I used a very simple example:
I don't use knitr so I can't really help, but you didn't tell us how you
passed this file to knitr, so maybe nobody can. However, if you were
using
I finally see what you and David W mean...I was under the assumption that by
subsetting
Year==2012 it would also extract the max for that year.I guess I have to
review 'subset' again :)
Thank you much
Felipe D. Carrillo
Supervisory Fishery Biologist
Department of the Interior
US Fish & Wild
Also tries this:
x<-count.fields("/Users/kama/Analysis/GDP10.csv", sep="\t")
> x
[1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1
[38] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1
[75] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
In addition,
I tried Data1<-read.table("/Users/kama/Analysis/GDP10.csv", sep="\t",
fill=TRUE)
the result: *** caught segfault ***
address 0xd020, cause 'memory not mapped'
Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit
Dear Berend,
Thank you so much for your help! I was able to write the gradient
function for my NLL function. For you're and others' possible interest,
here is my final gradient function:
Following from my description of the problem below, gr.p1, gr.p2,
gr.mu1, and gr.mu2 are the (very larg
Dear R-help group,
I'm a R beginner and I find difficulty in manipulating R. Could you send to
me a support that helps me to be familiar with R. Thank you in advance
Sincerely,
[[alternative HTML version deleted]]
__
R-help@r-project.org m
Dear Ravi,
Thank you so much for the help. I switched to using the optimx function
but I continue to use the spg method (for the most part) because I found
that only spg consistently converges give different datasets. I also
decided to use AIC rather that a likelihood ratio test.
I have a ne
Marc Schwartz (via MN) wrote:
> On Tue, 2005-12-13 at 10:53 +, Dan Bolser wrote:
>
>>Hi, I am plotting a distribution of (ordered) values as a barplot. I
>>would like to label groups of bars together to highlight aspects of the
>>distribution. The label for the group should be the range of
> "Romain" == Romain Francois <[hidden email]>
> on Tue, 13 Dec 2005 15:40:59 +0100 writes:
Romain> A few comments :
Romain> - your code should be reproductible, otherwise it is useless.
(that
Romain> recommandation is on the posting guide)
Ro
Hi all,
is it possible to concatenate expressions and basic text when for
instance labeling axis of a plot? I would like to see something like the
concatenation of expression(C[0]) and "for case 1" on my x axis.
Obviously a plot(x, y, xlab=paste(expression(C[0])," in case1")) will
not work.
Hello there,
I would like to simulate X --Normal (20, 5)
Y-- Normal (40, 10)
and the correlation between X and Y is 0.6. How do I do it in R?
Thank you very much
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Hello
I have a problem when fitting a mixed generalised linear model with the
lmer-function in the Matrix package, version 0.98-7. I have a respons
variable (sfox) that is 1 or 0, whether a roe deer fawn is killed or not
by red fox. This is expected to be related to e.g. the density of red
fo
Dear R Users,
I am new to state-space modeling. I am using SSPIR
package for Kalman Filter. I have a data set containing one dependent
variable and 7 independent variables with 250 data points. I want to use
Kalman Filter for forecast the future values of the dependen
Dear latex/R-Sweavers,
Using the codel below, I can color text in individual cells for latex
output.
Is there a similar way to get a background shading? My attempts failed
because I did not get the closing brace at the right place with Hmisc/latex.
library(Hmisc)
x <- as.data.frame(diag(rn
Hello
I have a problem when fitting a mixed generalised linear model with the
lmer-function in the Matrix package, version 0.98-7. I have a respons
variable (sfox) that is 1 or 0, whether a roe deer fawn is killed or not
by red fox. This is expected to be related to e.g. the density of red
fo
I found:
max.col(matrix(c(1,3,2),nrow=1))
Is there a more concise/elegant way?
Thanks,
-
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Sent from the R help mailing list a
Hello,
I am attempting to calculate the residual and null deviance of an lme
object that includes a corAR1 correlation structure. I tried
deviance(lme.object) and it only returned NULL. Can anyone help? Thank
you.
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Friends
I am trying to save myself some tedious work.
I am processing a paper from "The Journal Of Finance * Vol. LIV, No. 5
October 1999" by Sullivan, Timmerman and White. "Data-Snooping,
Technical Trading Rule Performance, and the Bootstrap"
I am aiming to reproduce their results us
Hi,
I am in the process of linking a C/C++ application to the R.dll
directly. I have obtained the R source code and compiled it
successfully. I have also successfully linked the R.dll directly into
our application and have made calls successfully into the R.dll that are
included in the samp
What's the best object browser?
Dear all,
I have tried all the popular R IDE or editors like Eclipse, Komodo, JGR,
Revolution...
They all have fancy fucntions like auto completion, syntax highlight
BUT, I JUST WANT A OBJECT BROWSER!
The easiest way to view objects in R console is fix(),
I have been trying to install RMySQL on Windows 7 following the
procedure at:
http://biostat.mc.vanderbilt.edu/wiki/Main/RMySQL
I think I have properly installed RTools and created a proper
Renviron.site file saying:
MYSQL_HOME="C:/Program Files/MySQL/MySQL Server 5.5"
When I try to install
Hi all,
I copy metafile boxplot from R to Word. Then save as Pdf file. But I found
there are some unexpected black lines in some plots within this PDF file.
Please give me some advice how to get rid of these black lines in PDF files.
Thanks a lot,
Jim
-
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Hi,
I ran two svm models in R e1071 package: the first without cross-validation
and the second with 10-fold cross-validation.
I used the following syntax:
#Model 1: Without cross-validation:
> svm.model <- svm(Response ~ ., data=data.df, type="C-classification",
> kernel="linear", cost=1)
>
Friends
I am trying to save myself some tedious work.
I am processing a paper from "The Journal Of Finance * Vol. LIV, No. 5
October 1999" by Sullivan, Timmerman and White. "Data-Snooping,
Technical Trading Rule Performance, and the Bootstrap"
I am aiming to reproduce their results us
Hi RUsers,
Suppose I want to see the data on the website
url <- "http://www.nseindia.com/content/indices/ind_histvalues.htm";
for the index "S&P CNX NIFTY" for
dates "FromDate"="01-11-2010","ToDate"="02-11-2010"
then read the html table from the page using readHTMLtable()
I am using this
I'm trying to fit the Bass Diffusion Model using the nls function in R but
I'm running into a strange problem. The model has either two or three
parameters, depending on how it's parameterized, p (coefficient of
innovation), q (coefficient of immitation), and sometimes m (maximum market
share).
I need to do text mining on PDF files. I understand there is a readPDF
command in tm that can be used. Have read the 2008 posts on converting
PDF files to text by Tony Breyal and others.
Wondering if the procedure has been standardized in any tutorial or
otherwise? Being new to R, I was ab
Hi RUsers,
Suppose I want to see the data on the website
url <- "http://www.nseindia.com/content/indices/ind_histvalues.htm";
for the index "S&P CNX NIFTY" for
dates "FromDate"="01-11-2010","ToDate"="02-11-2010"
then read the html table from the page using readHTMLtable()
I am using this
Hello,
How can I run a backward stepwise regression with part of the variables
fixed, while the others participate in the backward stepwise analysis?
Thank you
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Pls advise how I can use R in conjoint analysis??
regds
Faisal Afzal Siddiqui
Karachi, Pakistan
Looking for last minute shopping deals?
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Dear folks--
Suppose I have an expression that evaluates to a string, and that that
string, were it not a character vector, would be a symbol. I would like a
function, call it doppel(), that will take that expression as an argument
and produce something that functions exactly like the symbol wou
Dear all,
I have tried all the popular R IDE or editors like Eclipse, Komodo, JGR,
Revolution...
They all have fancy fucntions like auto completion, syntax highlight
BUT, I JUST WANT A OBJECT BROWSER!
The easiest way to view objects in R console is fix(), but you have no
global view of al
As David W. guessed. The maximum is in year 2005 not 2012 so no row from
2012 matches the maximum.
> subset(winter,Year==2012 & Total==max(Total))
[1] IDWeek Total FrySmolt FryEq Year
<0 rows> (or 0-length row.names)
> winter[which(winter$Total==max(winter$Total)),]
IDWeek Total
Similar to Duncan's example, if you have a script "test.R" which looks like so:
start script =
a1 <- 1:10
a2 <- 101:122
plot(a1, a1)
plot(a1, a2)
end script ==
You can source it one way:
R> source('test.R', keep.source=TRUE)
Error in xy.coords(x, y, xlabel, ylabel, log) :
'x'
I am having problem making ggplot2, tikzDevice, and knitr working together.
I used a very simple example:
---example.Rnw-
\documentclass[preview]{standalone}
\begin{document}
\begin{figure}
<>=
library(ggplot2)
qplot(displ, hwy, data = mpg, colo
Actually, I dput(winter) and is not that big.so here is the whole thing I
am trying to accomplish.
winter <- structure(list(IDWeek = c(27L, 28L, 29L, 30L, 31L, 32L, 33L,
34L, 35L, 36L, 37L, 38L, 39L, 40L, 41L, 42L, 43L, 44L, 45L, 46L,
47L, 48L, 49L, 50L, 51L, 52L, 27L, 28L, 29L, 30L, 31L, 32L
On 12-12-02 5:02 PM, John Sorkin wrote:
Gentleman,
This thread has been of great interest. Perhaps I missed part of it, but
do far I have not seen an example of code that has line numbers that
demonstrates how one can (in some instances) recover the line number of
an error. Can I impose upon the
Gentleman,
This thread has been of great interest. Perhaps I missed part of it,
but do far I have not seen an example of code that has line numbers that
demonstrates how one can (in some instances) recover the line number of
an error. Can I impose upon the people who contributed to this thread to
p
Hi,
>From the ddply() output, you could get the whole row by:
fish1 <- structure(list(Year = 2002:2012, maxTotal = c(1464311L, 1071051L,
714837L, 2115018L, 850491L, 207537L, 321195L, 935599L, 194429L,
157260L, 303259L)), .Names = c("Year", "maxTotal"), row.names = c(NA,
-11L), class = "data.fr
Does anyone know an R package that implements marginal structural modeling as
described by Jamie Robins? A similar question was asked of the list
approximately two-years ago and it does not appear that anyone responded.
Thanks,
John Sorkin
John David Sorkin M.D., Ph.D.
Chief, Biostatistics an
I am trying to write a function to change the case of all of the text in a
data frame to lower case. I do not have foreknowledge of the data frame
names or the data types of each column.
It seems that if one references the data frame by index, then it returns
class "data.frame" but if it is refe
Dear all,
I am having quite a hard time in trying to figure out how to correctly
spell out a model in R (a repeated-measures anova with a
within-subject covariate, I guess). Even though I have read in the
posting guide that statistical advice may or may not get an answer on
this list, I decided t
Dear R-users,
When i try -
Data1<-read.table("/Users/kama/Analysis/GDP10.csv",header=TRUE,sep=";") i
am getting this error: Warning message: In scan(file, what, nmax, sep, dec,
quote, skip, nlines, na.strings, :
number of items read is not a multiple of the number of columns
I wonder what Ia
Hi,
You could use:
set.seed(5)
dat1<-data.frame(Date=seq(from=as.POSIXct("2012-11-01
00:00:00"),to=as.POSIXct("2012-11-03 23:59:00"), by="1
min"),col2=rnorm(4320,0,1))
library(xts)
dat2<-xts(dat1[,-1],order.by=dat1[,1])
res<-ave(dat2[,1],format(index(dat2),"%H:%M"),FUN=mean)
#or
res<-tapply(dat2
Hi,
I am getting this:
x<-subset(fish,Year==2012 & Total==max(Total))
x
# IDWeek Total Fry Smolt FryEq Year
#21 47 303259 34008 269248 491733 2012
A.K.
- Original Message -
From: Felipe Carrillo
To: R. Michael Weylandt
Cc: "r-help@r-project.org"
Sent: Sunday, December 2,
I tried with Java 1.6.0_20 and 1.7.0_09. It actually doesn't matter what
command I'm running with system. Any command will fail with the same error
message. But for the example I posted, yes, I was using "ls" from Rtools.
I found that I can only reproduce this with R 2.15.2+ 32-bit on Windows
32-
Hello, and thanks for your time reading this. I'm trying to test
interactions of my dataset, in which the all of the factors are within the
same column.
TypeVol
1 CMass -4.598
2 BBack -4.605
3 BMass -4.602
4 CMass -4.601
5 CBack -4.605
6
HI,
I guess you can check library(forecast).
You could also use ?stl(), though not sure whether this will help you in this
case.
For e.g.
set.seed(5)
quantity<-sample(c(120:220,NA),699,replace=TRUE)
Date=seq(as.Date("2011-01-01"),len=699,by="1 day")
dat3<-data.frame(Date=Date,quantity=quantity)
l
Dear R user!
I have a small question!
I have calculated the relative importance of the variables.
However I would like to compare the relative importance of two different
groups of variables (i.e Strategy and industry)
For example let me say that strategy has 2 sub varialbes and industry has
four
function <- function(p){
i <- 2
r <- 0
while(i < p) {
q <- (p/i)
while(q>=1) {
q=(q-1)
}
if (q==0) {
r=1
} else
i=i+1
}
return(r)
}
This function stays in some kind of loo
Hello, i'm here to have an explenation about time series
I have to analize a time series of a stock prices and i don't understand the
meaning of "ts" ..
i load, for instance
mps <- get.hist.quote(instrument = "bmps.mi" , quote="Close",
start="2006-01-01", end="2012-09-30", compression="d")
an
Dear all,
many thanks for your answer and support!!
Steve
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Le dimanche 02 décembre 2012 à 14:21 -0500, Duncan Murdoch a écrit :
> On 12-12-02 9:52 AM, Milan Bouchet-Valat wrote:
> > Le dimanche 02 décembre 2012 à 09:02 -0500, Duncan Murdoch a écrit :
> >> On 12-12-02 8:33 AM, Milan Bouchet-Valat wrote:
> >>> Le dimanche 02 décembre 2012 à 06:02 -0500, Stev
I also thought that I could use it but ggplot didn't like it by itself,,,it
wants to whole rowI guess it is hard
to understand because I didn't post all the ggplot code of what I am trying to
accomplish. The strangest thing is that
ddply can extract all my Totals by year but when I try to sub
The reason I suggested the alternative that I did was because your
code could fail when the max(Total) value was not in the subset where
Year==2012.
--
David
On Dec 2, 2012, at 11:34 AM, Felipe Carrillo wrote:
Using my whole dataset I get:
library(plyr)
ddply(winter,"Year",summarise,maxTot
What do you mean by accuracy? Proportion classified correctly is not a good
index of accuracy if that's the problem.
Frank
rahul143 wrote
> Hi,
>
> I ran two svm models in R e1071 package: the first without
> cross-validation and the second with 10-fold cross-validation.
>
> I used the follow
Using my whole dataset I get:
library(plyr)
ddply(winter,"Year",summarise,maxTotal=max(Total))
fish <- structure(list(Year = 2002:2012, maxTotal = c(1464311L, 1071051L,
714837L, 2115018L, 850491L, 207537L, 321195L, 935599L, 194429L,
157260L, 303259L)), .Names = c("Year", "maxTotal"), row.nam
On 12-12-02 9:52 AM, Milan Bouchet-Valat wrote:
Le dimanche 02 décembre 2012 à 09:02 -0500, Duncan Murdoch a écrit :
On 12-12-02 8:33 AM, Milan Bouchet-Valat wrote:
Le dimanche 02 décembre 2012 à 06:02 -0500, Steve Lianoglou a écrit :
Hi,
On Sun, Dec 2, 2012 at 12:31 AM, Worik R wrote:
What
> I am
> still getting an error message
> >with :
> > x <- subset(fish,Year==2012 & Total==max(Total));x
> >I get:
> >[1] IDWeek Total FrySmolt FryEq Year
> ><0 rows> (or 0-length row.names)
The above is not an error message. It says that there
are no rows satisfying your criteria. Note
On Sun, Dec 2, 2012 at 6:46 PM, Felipe Carrillo
wrote:
> Works with the small dataset (2 years) but I get the error message with the
> whole dataset (12 years of data). I am going to have
> to check what's wrong with it...Thanks
Off the cuff guess: there's a NA in Total so max(Total) is NA which
Works with the small dataset (2 years) but I get the error message with the
whole dataset (12 years of data). I am going to have
to check what's wrong with it...Thanks
Felipe D. Carrillo
Supervisory Fishery Biologist
Department of the Interior
US Fish & Wildlife Service
California, USA
http://www
Hello,
You should include a data example, using ?dput.
Anyway, making up some data,
t1 <- as.POSIXct("2012-1-1 0:0:0")
t2 <- as.POSIXct("2012-1-4 0:0:0")
d <- seq(t1, t2, by = "1 min")
x <- rnorm(length(d))
z <- zoo(x, d)
aggregate(z, list(format(index(z), "%H:%M")), FUN = mean)
Hope this h
Sorry, I was trying it to subset from a bigger dataset called 'winter' and
forgot to change the variable names
when I asked the question. David W suggestion works but the strange part is
that I am still getting an error message
with :
x <- subset(fish,Year==2012 & Total==max(Total));x
I get:
[1
It's simpler, easier, and more correct to use zoo::na.approx.
R> library(zoo)
R> dat1<-read.table(text=
+ " date value
+ 80 2006-10 0.1577647
+ 81 2006-11 NaN
+ 82 2006-12 NaN
+ 83 2007-01 NaN
+ 84 2007-02 NaN
+ 85 2007-03 0.2956429",
+ header=TRUE,stringsAsFact
Hello,
I have 1-minute time series stock data and I'd like to calculate mean of every
n-th candle data of m-days.
result = c(mean of 1th data, mean of 2nd data, ...)
mean of 1th data = (1th data of 2012-1-1 + 1th data of 2012-1-2 + 1th data of
2012-1-3) / 3
mean of 2nd data = (2nd data of
Hi, Felipe,
two typos? See below!
On Sun, 2 Dec 2012, Felipe Carrillo wrote:
Hi,
Consider the small dataset below, I want to subset by two variables in
one line but it wont work...it works though if I subset separately. I have
to be missing something obvious that I did not realize before whil
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