Displaying 9 results from an estimated 9 matches for "calef".
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caleb
2007 Nov 14
1
Help with K-means Clustering
...ome data I have,
however each time I use that instruction with the same data my cluster
means, clustering vector and within cluster sum of square change and I don't
understand why because I use the same parameters and the same data.
Can anybody explain me why does it happen?
Thank you
Act. Calef Alejandro Rodr?guez Cuevas
Analista de mercado
Laboratorios Farmasa S.A. de C.V.
Schwabe Mexico, S.A. de C.V.
Bufalo Nr. 27
Col. del Valle 03100
Mexico, D.F.
Mexico
Tel. 52 00 26 80
email: rodrigueza at schwabe.com.mx
www.schwabe.com.mx
www.umckaloabo.com.mx
2010 Dec 29
2
Trying to extract an algorithm from a function
Hi, I'm using package "vars" and I'm trying to extract the algorithm that
function "predict" contained in that package in order to understand how does
it work.
When I type function "VAR" then all its algorithm appears in R, however if I
try to do the same with "predict" nothing happens...Is there any possible
way to extract the algorithm?
Thanks a
2007 Nov 30
1
Help with tables
...I I .2
+--------+--------+--------+--------+
Column 153 116 104 107 480
Total 31.9 24.2 21.7 22.3 100.0
Percents and totals based on respondents
480 valid cases; 0 missing cases
Act. Calef Alejandro Rodr?guez Cuevas
Analista de mercado
Laboratorios Farmasa S.A. de C.V.
Schwabe Mexico, S.A. de C.V.
Bufalo Nr. 27
Col. del Valle 03100
Mexico, D.F.
Mexico
Tel. 52 00 26 80
email: rodrigueza at schwabe.com.mx
www.schwabe.com.mx
www.umckaloabo.com.mx
2010 Dec 01
1
Wiener-Granger Causality Test in R
Hello dudes.
I'm developing VAR analysis based on suggestions made by Horváth in its
paper Canonical Correlation Analysis and Wiener-Granger Causality Tests.
That's the reason I'm looking for if there's any R package to develop Wiener
- Granger Causality Test.
Thanks a lot for your unvaluable help.
Regards from Mexico
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2011 Jan 04
1
uroot Package and R 2.12.1
Hello friends.
I'm wondering what happened to package uroot. I worked quite well with
older versions of R, however with 2.12.1 version it simply doesn't work.
The worst thing is that I look for it in the contributed packages and it
simply doesn't appear.
I want to develop ADF test with seasonal (centered) dummies, is there any
other possible package that contains this test?
Thanks
2010 Oct 13
1
Program BFAST
Hi everybody.
I'm using BFAST program and I have some data to be analized (named
"META.csv" for example). When I call BFAST in the following way:
meta <- read.csv("C:/META.csv")
meta.ts<-ts(meta, frequency=12, start = c(2005,9))
dis<-frequency(meta.ts) / length(meta.ts)
meta.sc<-bfast(meta.ts, h=dis, max.iter=1)
meta.sc$output
The last statement has the
2012 Nov 06
1
Mixed Data Sampling Regression Models
Hi everybody.
I was wondering if there's any package available that can handle Mixed Data
Sampling Regression Models.
Thanks a lot for your help.
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2012 Sep 27
1
How does "apply.monthly" function works (xts package)
Hi everybody.
I use to work with monthly data, however this is my first time working with
weekly data.
I have 4 data bases with monthly data and 1 with weekly data, so I want to
convert my weekly to monthly data in order to have the same periodicity in
all of them.
I've read that package xts can help me with this issue, so I have done the
following script:
2010 Oct 12
1
Help with STL function to decompose
Hi everyone.
I'm having some troubles with STL function to decompose some data.
My issue is that I have monthly data from September 2005 up to August 2010
i. e. 60 observations.
I define it in the following way:
*u<-read.csv("C:/CELEBREX.csv",header = TRUE)
u.ts<-ts(u, start=c(2005,9), frequency=12)
*
The issue is that when I try to use
stl(u.ts, 'per')
Then the