Displaying 20 results from an estimated 300 matches similar to: "time series manipulation what functions are "best""
2012 Feb 17
6
convert zoo object to "standard" R object so I can plot and output to csv file
Another newbie question
I got the 1 minute spine interpolation and 15 mean aggregation working with
many thanks to Gabor Grothendieck using Zoo functions. I got a tip from
Hasan Diwan to look at xts but it seemed I would make better progress using
code from Gabor.
Now I'm having trouble plotting this zoo object. I'm thinking I want a
function to "split" the zoo object back to
2014 Jun 15
1
reading time series csv file with read.zoo issues, then align time stamps
Goal: get time series data interpolated on to desired time stamps.
I have two or more data sets that have time stamps that vary from 5 mins to
3-5 hours.
I want to get all the data put on common time stamps e.g. "00:05:00"
intervals.
I asked Gabor and got some very good code ( zoo aggregate, na.spline,
na.approx) but I'm having trouble getting the csv file read in and converted
to a
2010 Feb 01
3
Convert a column of numbers to a column of strings
Hello,
Please excuse me if this question has been asked before. I'm new to R, and
have been trying to google the answers without any success.
I would like to convert a set of date and time into R date-time class. Right
now, the dates and times are in integer format, so I first need to convert
them into string, and then to R date-time using strptime. However, I have a
problem converting them
2012 Mar 22
4
read.zoo - combining two columns with date and time respectively into one index column?
I have three columns in my raw data: date, time, and dry bulb temperature:
http://r.789695.n4.nabble.com/file/n4495326/weathDataSDCoron.txt
weathDataSDCoron.txt
The date format is %Y%m%d and the time format is %H:%M. Any ideas on how to
read it in such that it looks at the first two columns and then merges it
into one column combining both the date and time?
--
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2003 Oct 02
2
hist (PR#4395)
It is not really a bug but a strange choice. When the option freq=F chosen, hist
should plot relative frequency. It plots proportional to relative frequency by
the factor of bin width. Is there a reason for this? A more normal choice seems
to be to have it independent of the bin width.
Yash Mittal
University of Arizona
----------------------------------------------------------------
This
2012 Jul 31
1
Subgraph isomorphism using vertex labels
Hi all,
I want to find all the mappings of one graph in another graph, based on
their vertex labels
Is there any way to do this in igraph based on vertex labels.
(as far as i know Igraph allows the subgraph isomorphism based only on
vertex and edge colors)
Eg:
graph 1:
x(1) x(2)
x(2) y(3)
y(4) x(1)
z(5) x(2)
graph 2:
x(1) y(2)
# the brackets contain the corresponding vertex ids
i would like my
2003 Jul 24
1
bug? (PR#3550)
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 1
minor 7.1
year 2003
month 06
day 16
language R
I have a Dell Inspiron 4000 laptop with Windows ME. I recently installed the
1.7 version of R. The following commands are from my
2008 Jun 16
6
llvm and simplescalar
hello everyone,
I'm wondering whether llvm can work together with simplescalar. Would anyone
please give me some clarification? Thanks a lot!
2008 Jun 16
6
llvm and simplescalar
hello everyone,
I'm wondering whether llvm can work together with simplescalar. Would anyone
please give me some clarification? Thanks a lot!
2010 Sep 29
1
Understanding linear contrasts in Anova using R
#I am trying to understand how R fits models for contrasts in a
#simple one-way anova. This is an example, I am not stupid enough to want
#to simultaneously apply all of these contrasts to real data. With a few
#exceptions, the tests that I would compute by hand (or by other software)
#will give the same t or F statistics. It is the contrast estimates that
R produces
#that I can't seem to
2017 Jun 06
4
integrating 2 lists and a data frame in R
Dear Bert,
thank you for your response. here it is the piece of R code : given 3 data
frames below ---
N <- data.frame(N=c("n1","n2","n3","n4"))
M <- data.frame(M=c("m1","m2","m3","m4","m5"))
C <- data.frame(n=c("n1","n2","n3"),
2009 Aug 18
15
dlm stress test hangs OCFS2
This email is also sent to cluster-devel at redhat.com. Since this issue is about
both dlm and ocfs2, I send the email here to look for help from upstream.
This is an already known issue.
on ocfs2 with user space cluster stack, run the test script from
http://people.redhat.com/~teigland/make_panic on the mounted ocfs2 volume from 2
nodes simultaneously, the access to ocfs2 volume on both nodes
2017 Jun 06
0
integrating 2 lists and a data frame in R
Hi Bogdan,
Kinda messy, but:
N <- data.frame(N=c("n1","n2","n3","n4"))
M <- data.frame(M=c("m1","m2","m3","m4","m5"))
C <- data.frame(n=c("n1","n2","n3"), m=c("m1","m1","m3"), I=c(100,300,400))
2017 Jun 06
2
integrating 2 lists and a data frame in R
> On Jun 6, 2017, at 4:01 AM, Jim Lemon <drjimlemon at gmail.com> wrote:
>
> Hi Bogdan,
> Kinda messy, but:
>
> N <- data.frame(N=c("n1","n2","n3","n4"))
> M <- data.frame(M=c("m1","m2","m3","m4","m5"))
> C <-
2007 Sep 26
2
generate fourth vector based on known correlations
I am trying to generate a fourth vector,z, given three known and fixed
vectors, x1,x2,x3 with corresponding known and fixed correlations with
themeselves and with z. That is, all correlations are known and
prespecified. How can I do this?
Thank you,
ben
2011 Feb 21
2
[LLVMdev] Questions about LLVM IR encoding
Hi all, I am new to LLVM (even the field of compiler) and currently I am
engaged in the work of adapting LLVM IR to M5 simulator to observe the
enhancement of the novel architecture we design.
Simply speaking if you know little about M5, my aim is to know how LLVM IR
is interpreted and encoded, then try to implement it in the framework of M5.
I have read the LLVM documents, yet I still have some
2006 Nov 28
3
Predicted values in lmer modeling
Dear All,
I am working with linear mixed-effects models using the lme4 package in
R. I created a model with the lmer function including some main effects,
a two-way interaction and a random effect. Now I am searching for a way
to save the predicted values for this model.
As far as I can see, there is no command in lme4 to save the predicted
values (like the predict(model) function in e.g.
2009 Apr 22
4
read.table or read.csv without row index?
Hello all,
Probably my concepts about the data.frame and matrix and array in R
are not clear, I need some clarification to help me understand them
better.
>M <- read.table("test1.csv",sep=",",row.names=NULL,header=T)
gives me: M as
M1 M2 M3 M4 M5 M6 M7 M8 M9 M10
1 9 11 14 15 18 20 20 20 20 20
2 3 4 8 9 11 12 14 15 15 15
3 4 5 8 8 9 9 9 9 9 9
4 4
2008 Jun 17
0
[LLVMdev] [llvm-announce] llvm and simplescalar
Thank you for your answers and suggestions!
Well, I want to do some experiments about the compiler optimization in llvm under SPM and I need performance evaluation. As I know, alpha is a general-purpose CPU, so I consider that arm may be an alternative. Simplesim-arm is able to do performance simulation while m5-arm is still under development. Then, what should I do? Do the experiment under
2010 Aug 18
4
Fwd: R SOFTWARE
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Good Morning
Im busy doing an exercise on Foundation of Statistical Description and Analysis,Please check the attached exercise on page 3.In this exercise the first