Displaying 20 results from an estimated 1000 matches similar to: "Reading data in R-metrics"
2007 Apr 25
1
help
Hi all,
I have 2 questions:
1)How do I calculate the mean on an imported txt file? I've imported the
file below and that's what it looks like imported. How do I then calcuate
the mean, median, or mode on the column LeafArea using the desktop R
package?
Any help would be greatly appreciated!!
Thanks,
Nat
LeafType Leaflets LeafArea ShapeRatio LeafWeight LeafThickness
1 1
2011 Jan 19
1
Using subset to filter data table
I am having difficulty understanding how I would constrain a data set by
filtering out 'records' based on certain criteria.
Using SQL I could query using 'select * from my.data where LithClass in
('sand', 'clay')' or some such.
Using subset, there seem to be ghosts left behind (that is, all of the
LithClass *.Labels* remain after subset)
> dput(tcc)
2010 Feb 17
2
extract the data that match
Hi r-users,
I would like to extract the data that match. Attached is my data:
I'm interested in matchind the value in column 'intg' with value in column 'rand_no'
> cbind(z=z,intg=dd,rand_no = rr)
z intg rand_no
[1,] 0.00 0.000 0.001
[2,] 0.01 0.000 0.002
[3,] 0.02 0.000 0.002
[4,] 0.03 0.000 0.003
[5,] 0.04 0.000 0.003
[6,]
2008 Nov 23
1
Help in Programming using Methods
I WROTE THIS FUNCTION BELOW
test <- function(x, ...) UseMethod('test', x)
test.data.frame = function(x, model, which, error, ...)
{
av <- aov(formula(model), data = x)
res <- test.aovlist(av, which = which, error = error)
return(res)
}
test.aovlist <- function(x, which, error, ...)
{
mm <- model.tables(x, "means")
tabs <- mm$tables[-1]
2008 Dec 16
1
Problem with alignDailySwries in R-metrics
Hi Folks! I seem to be having a problem with alignDailySeries in Rmetrics:
DTB6<-fredSeries("DTB6",frequency = "daily",from = "1980-01-01")
trying URL '
http://research.stlouisfed.org/fred2/series/DTB6/downloaddata/DTB6.txt'
Content type 'text/plain; charset=UTF-8' length 248392 bytes (242 Kb)
opened URL
downloaded 242 Kb
Read 13060 items
2006 Jun 19
4
Qurey : How to add trendline( st. line) in Graph
How to add trendline (i.e. straight line passing through maximum points)
in graph.
I have worked on the data given below.
Please tell me how to add trendline in the graph.
The script is as follows
=================================== start
====================================================
# The data is as follows
data <- c( 0.01, 0.02, 0.04, 0.13, 0.17 , 0.19 , 0.21 , 0.27 , 0.27 ,
2006 Jun 21
5
colClasses
Hi Folks!
I'm reading in some data from a .csv file that has a date column.
How do I use colClasses to get read.csv to recognize the date column?
The documentation on this seems to be nil -
And yes, I've read help and R Data Import/Export and can't figure out
what the colClasses syntax is.
Thanks,
john
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2006 May 15
3
Dyn or Dynlm and out of sample forecasts
All:
How do I obtain one step ahead out-of-sample forecasts from a model
using "dyn" or "dynlm" ?
Thanks!
Best,
John
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2013 May 15
1
x and y lengths differ
I have a problem with R. I try to compute the confidence interval for my
df. When I want to create the plot I have this problem: Error in
xy.coords(x, y, xlabel, ylabel, log) : 'x' and 'y' lengths differ.
I try this code:
library(dplR)
df.rwi <- detrend(rwl = df, method = "Spline",nyrs=NULL)
write.table(df.rwi,file="rwi.txt",quote=FALSE,row.names=TRUE)
2005 Apr 22
2
Hoaglin Outlier Method
I am a new user of R so please bear with me. I have reviewed some R books,
FAQs and such but the volume of material is great. I am in the process of
porting my current SAS and SVS Script code to Lotus Approach, R and
WordPerfect.
My question is, can you help me determine the best R method to implement
the Hoaglin Outlier Method? It is used in the Appendix A and B of the fo
llowing link.
2004 Apr 19
2
3Com PXE server
I posted this to the group last year, but the problem was not fixed so I
will give it another try.
I use 3Com's PXE server to deploy the Fedora Core boot disk to my clients
for an ftp install. I also have ghost boot disks, bios update disks, and a
video bios repair disk all using the 3Com PXE server. The problem is when I
try to boot a Linux kernel. With all versions of syslinux since 1.72
2010 Jul 22
0
Please advise acf and pacf in order to determine order of Arima
I have data as below.Please let me know how the ACF and Pacf used to
determine the order od arima model.
Is there any rules need to be followed to determine order.Please advise
> turkey.price.ts
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2001 1.58 1.75 1.63 1.45 1.56 2.07 1.81 1.74 1.54 1.45 0.57 1.15
2002 1.50 1.66 1.34 1.67 1.81 1.60 1.70 1.87 1.47 1.59 0.74 0.82
2006 Jun 23
3
Problems with weekday extraction from zoo objects
Hi Folks!
I'm struggling with dates - but enough about my personal life.....
I have two daily time series files. In one (x) the date format is Y/m/d
and the other (y) is d/m/y. I used read.zoo on both and they read into
R with no problem.
Then I use: weekdays(as.Date(x$DATE)) and get what I expect - all the
days of the week in my data set.
When I use:
2008 May 02
2
Extract lags from a formula
Hi folks!
How do I extract lags from a formula? An example:
mod.eq<-formula(x~lag(x,-1)+lag(x,-2))
> mod.eq
x ~ lag(x, -1) + lag(x, -2)
> mod.eq[1]
"~"()
> mod.eq[2]
x()
> mod.eq[3]
lag(x, -1) + lag(x, -2)()
I'm trying to extract the lags into a vector that would be simply [1,2].
How do I do this? I'm using the dyn package to do dynamic
2002 Nov 09
1
booting memtest86 with syslinux
I'm building a custom bootdisk that I would like to boot linux or
boot memtest86 (www.memtest86.com). And I'm running into some
difficulties with recent versions of syslinux. All I'm doing is making a
new label in syslinux.cfg called memtest and giving it kernel memtest.bin.
This has worked on and off for several recent versions of memtest. It
worked in 1.67, broke in 1.70(loads
2017 Dec 05
9
Who wants faster LLVM/Clang builds?
Hi,
Recently I've done some experiments on the LLVM/Clang code and discovered that many of our source files often include unnecessary header files. I wrote a simple tool that eliminates redundant includes and estimates benefits of doing it, and the results were quite nice: for some files we were able to save 90% of compile time! I think we want to apply some of the cleanups I found, but
2009 Feb 12
2
System.time
Hi folks!
Does anyone know why I might see something like this after running
system.time?
system.time(svd(Mean_svd_data))
user system elapsed
0 0 0
The data set is tiny and the function returns results instantly, but
shouldn't it still give me a time?
Thanks,
John
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2011 Dec 01
1
[LLVMdev] [llvm-testresults] bwilson__llvm-gcc_PROD__i386 nightly tester results
Are these 225 compile time regressions real? It sure looks bad!
Ciao, Duncan.
On 01/12/11 09:39, llvm-testresults at cs.uiuc.edu wrote:
>
> bwilson__llvm-gcc_PROD__i386 nightly tester results
>
> URL http://llvm.org/perf/db_default/simple/nts/380/
> Nickname bwilson__llvm-gcc_PROD__i386:4
> Name curlew.apple.com
>
> Run ID Order Start Time End Time
> Current 380
2012 Jul 02
1
How to get prediction for a variable in WinBUGS?
Dear all,I am a new user of WinBUGS and need your help. After running the following code, I got parameters of beta0 through beta4 (stats, density), but I don't know how to get the prediction of the last value of h, the variable I set to NA and want to model it using the following code.Does anyone can given me a hint? Any advice would be greatly appreciated.Best
2017 Dec 06
3
Who wants faster LLVM/Clang builds?
It's also likely that a lot of '#include "foo.h"' can be replaced with
'class foo;'
Especially in the transitive inclusion case, instead of removing the
#include entirely.
On Wed, Dec 6, 2017 at 8:38 AM, Chris Lattner via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> I, for one, want faster builds.
>
> Beyond that though, this seems like obvious