Displaying 20 results from an estimated 1000 matches similar to: "Data Gaps"
2010 Oct 15
3
Create Arrays
Hi,
For this example:
O <- c(0 0 0 2 0 0 2 0)
I want to create an array every time O[i] > 0. The array should be in the
form;
R[j] <- array(-1, dim=c(2,O[i]))
i.e. if O[i] > 0 4 times I want 4 R arrays.
Does anyone have any suggestions?
Thanks,
Doug
--
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2011 Mar 08
4
If Statement
Hi,
I am having some problems using the if statement correctly. I have used it
many times previously so I dona't know what is different with this case.
Here is my problem:
I have a 1X10 matrix of values as follows:
> H.MC
[,1]
[1,] 4.257669
[2,] 7.023242
[3,] 4.949857
[4,] 5.107000
[5,] 4.257669
[6,] 4.257669
[7,] 4.257669
[8,] 4.257669
[9,] 4.257669
[10,] 4.257669
2010 Oct 13
1
Date Time Objects
I am trying to convert an array from numeric values back to date and time
format. The code I have used is as follows;
for (i in 0:(length(DateTime3)-1)) {
DateTime3[i] <- (strptime(start, "%m/%d/%Y %H:%M")+ i*interval)
where start <- [1] "1/1/1981 00:00"
However the created array (DateTime3) contains [1,] 347156400 347157600
347158800 347160000 347161200 347162400
2010 Nov 10
3
Plot Axes
R community,
I am creating a bivariate return level plot by adding calculated return
period values as lines onto an existing plot using the following code with
the points representing the return periods.
plot(H2,D2,pch="+",axes=TRUE)
points(H.10,D.10, type="l",col="blue")
points(H.20,D.20, type="l",col="green")
points(H.50,D.50,
2010 Oct 15
0
nomianl response model
Is there a way to estimate a nominal response model?
To be more specific let's say I want to calibrate:
\pi_{v}(\theta_j)=\frac{e^{\xi_{v}+\lambda_{v}\theta_j}}{\sum_{h=1}^m
e^{\xi_{h}+\lambda_{h}\theta_j}}
Where $\theta_j$ is a the dependent variable and I need to estimate
$\xi_{h}$ and $\lambda_{h}$ for $h \in {1...,m}$.
Thank you,
Mauricio Romero
Quantil S.A.S.
Cel: 3112231150
2012 Jun 10
1
Gaps on merging xts objects
Looking for a little help figuring out what's driving gaps in data after
merging two xts objects (msci.m and x2). The merge statement I'm using is
... y <-merge(x2,msci.m, all=FALSE). Here's info on the output , y:
head(y)
t-bill msci
Sep 1985 7.310 316.963
Mar 1986 6.560 463.471
Jun 1986 6.180 498.791
Jul 1987 6.200 778.898
Aug 1987 6.400 833.519
Nov 1987
2010 Aug 17
3
Wilcoxon test and grouping factor with multiple levels
Dear R users,
I have a dataset with two variables: $esan - a grouping factor with 8
levels and $reus. I'd like to do wilcox.test on this dataset as
sugested Weiwei here:
https://stat.ethz.ch/pipermail/r-help/2007-July/136627.html. I tried
to adapt his recommendation but no succes. Can anyone help me?
Regards,
Iurie Malai, Senior Lecturer
Department of Psychology
Faculty of Psychology and
2007 Dec 08
0
help for segmented package
Hi,
I am trying to find m breakpoints of a linear regression model. I
used the segmented package. It works fine for small number of
predicators and breakpoints.(3 r.v. 3 points). However, my model has
14 variables it even would not work even for just one breakpoints!.
The error message is always estimated breakpoints are out of range.
Since my problem is time related problem. So I
2012 Dec 28
3
help with reshaping wide to long format
Hi, Sorry, but how did you bring it out?
Thanks
On Fri, Dec 28, 2012 at 8:48 AM, arun kirshna [via R] <
ml-node+s789695n4654093h10@n4.nabble.com> wrote:
> Hi,
> bp.sub<- structure(list(CODEA = c(1L, 3L, 4L, 7L, 8L, 9L, 10L, 11L, 12L,
> 13L, 14L, 16L, 17L), C45 = c(NA, 2L, 2L, 2L, 2L, 1L, NA, 1L,
> 1L, 2L, 1L, 2L, 1L), ragek = c(3L, 3L, 3L, 4L, 4L, 3L, 3L, 3L,
> 3L, 3L,
2010 Oct 25
2
difftime error
R community,
I am trying to create an array of the time differences between datapoints
for a very large set. For some reason for 4 of the values the difference
has been calculated as NA.
Looking at the individual points two of them are "1981-03-29 01:40:00" and
"1981-03-29 02:00:00"
This is the exact same format as the other points that return values of 20
mins as expected.
2011 Feb 04
3
uniroot
Hi,
I am using the uniroot function in order to carry out a bivariate Monte
Carlo simulation using the logistics model.
I have defined the function as:
BV.FV <- function(x,y,a,A)
(((x^(-a^-1)+y^(-a^-1))^(a-1))*(y^(a-1/a))*(exp(-((1^(-a^-1)+y^(-a^-1))^a)+y^-1)))-A
and the procedure is as follows:
Randomly generate values of A~(0,1), y0 = -(lnA)^-1
Where: A=Pr{X<xi|Y=yi-1} and a is the
2017 Oct 13
2
How to define proper breaks in RFM analysis
Hey,
i want to define 3 ideal breaks (bin) for each variable one of those
variables is attached in the previous email,
i don't want to consider quartile method because quartile is not working
ideally for that data set because data distribution is non normal.
so i want you to suggest another method so that i can define 3 breaks with
the ideal interval for Recency, frequency and monetary to
2008 Jun 19
1
PrettyR (describe)
#is there a way to get NA in the table of descriptive statistics instead of
the function stopping Thank you in advance
#data
x.f <- structure(list(Site = structure(c(9L, 9L, 9L, 9L, 9L, 9L, 9L,
9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L, 9L,
9L, 9L, 9L, 9L), .Label = c("BC", "HC", "RM119", "RM148", "RM179",
"RM185",
2013 May 29
0
[LLVMdev] Polyhedron 2005 results for dragonegg 3.3svn
On Wed, May 29, 2013 at 03:25:30PM +0200, Duncan Sands wrote:
> Hi Jack, I pulled the loop vectorizer and fast math changes into the 3.3 branch,
> so hopefully they will be part of 3.3 rc3 (and 3.3 final!). It would be great
> if you could redo the benchmarks rc3.
>
Duncan,
As requested, appended are the updated Polyhedron 2005 benchmark results with both RC1 and RC3 llvm 3.3
2006 May 24
2
DHCP configuration for Cisco 7960?
(Apologies to those Toronto Asterisk Users' Group folks who have seen
this message... I figured I'd have more success with a wider audience)
I'm trying to boot a Cisco 7960 from an ISC DHCPD server (3.0.3 on
FreeBSD 4.11), so far unsuccessful, and getting some odd behaviour on
the wire. I wonder if anyone has done this before and therefore can
validate whether or not the traffic I am
2013 Aug 19
2
Problemas con ggsave(paste('img/',plotName,'.png', sep='')
Estimados usuarios de R:
Soy nuevo en R, le ruego disculpa por mi *Ignorancia*.
Estoy corriendo la siguiente instruccion,
ggsave(paste('img/',plotName,'.png', sep='')
y resulta el error:
ggsave(paste('img/',plotName,'.png', sep='')
Saving 7.32 x 4.87 in image
Error in grDevices::png(..., width = width, height = height, res = dpi, :
2007 Mar 24
2
Two Problems while trying to aggregate a dataframe
Hello!
Given is an Excel-Sheet with actually 11,000 rows and 9 columns. I want
to work with the data in R. The contents are similar to my following
example.
I have a list with ID-number, personal name and two kinds of
loan-values. I want to aggregate the list, that for each person only one
row remains and where the loan-values are added.
First I tried some commands with tapply but had no
2013 May 23
4
[LLVMdev] Polyhedron 2005 results for dragonegg 3.3svn
Below are the results for the Polyhedron 2005 benchmarks compiled with llvm/compiler-rt/dragonegg 3.3svn at r182439 against current
FSF gcc 4.7.3svn and 4.8.1svn. The only major bug remaining in the dragonegg 3.3svn support for gcc 4.8.x is http://llvm.org/bugs/show_bug.cgi?id=15980
which results in unresolved symbols for _iround and _iroundf in the aermod and rnflow testcases. Note that this
2010 Mar 24
1
[LLVMdev] [cfe-dev] 2.7 Pre-release1 available for testing
On 03/17/2010 10:12 PM, Tanya Lattner wrote:
> The 2.7 binaries are available for testing:
> http://llvm.org/pre-releases/2.7/pre-release1/
>
> You will also find the source tarballs there as well.
>
> We rely on the community to help make our releases great, so please help
> test 2.7 if you can. Please follow these instructions to test 2.7:
>
> /To test llvm-gcc:/
2009 Oct 06
2
ggplot cumsum refined question (?)
OK, so maybe last night was a little too much at one throw, so I have
reduced the data to two stations- one that has precipitation and one
that does not. This is going to be in the context of a larger data
set. I would like to be able to issue a ggplot command and have cum
sum just act on the facets (factors) to apply this.
library(chron)
library(ggplot2)
DF <- structure(list(date_time =