Displaying 20 results from an estimated 600 matches similar to: ""R" and "S-plus""
2004 Mar 25
1
S+Finmetrics cointegration functions
Dear all,
S+Finmetrics has a number of very specilised functions. I am
particularly interested in the estimation of cointegrated VARs (chapter
12 of Zivot and Wang). In this context the functions coint() and
VECM() stand out. I looked at package "dse1", but found no comparable
functionality. Are there any other packages you could point me to? In
general, are there efforts for
2003 Mar 14
2
R "FinMetrics" Package Available?
Hello List,
I've done some cursory searching but (so far) have struck out. Does
anyone know if the R version of the S+ FinMetrics package is available?
Best,
Bill Vedder
2006 Jul 17
3
Correlation Mapping
On the cover of Zivot and Wang's Modeling Financial Time Series with S
Plus, there is a correlation plot that seems to indicate the strength
of correlation with color-coded squares, so that more highly
correlated stocks appear darker red. If anybody out there is familiar
with the book or understands what I am talking about, I am curious as
to whether or not there is a similar function in R
2008 Feb 07
2
where do I find stochastic volatilities models in R or Matlab?
Hi all,
Does anybody have the source code of stochastic volatility models in R
or Matlab, for example, the Bayesian based or the simulation based SV
estimations as described by Prof Eric Zivot in the following
discussion?
https://stat.ethz.ch/pipermail/r-sig-finance/2005q4/000501.html
--------------
I am wondering what is the current status of estimating stochastic vol
models and what's
2004 Feb 19
6
R for economists (was: Almost Ideal Demand System)
Hi,
I did not find any web page about using R in economics and econometrics so
far. However, this does not mean that there is none (searching with google
for "R" and "economics" gives many pages about economics and a name like
Firstname R. Lastname on it ;-)).
Does anybody in the list does know such a web page?
If not, I will be happy if you, Ajay, could build and
2004 Nov 24
2
seriesMerge
Is there a function in R that is equivalent to S-PLUS's
seriesMerge(x1, x2, pos="union")
where x1, and x2 are of class timeSeries
seriesMerge is in S-PLUS's finmetrics. I looked into R's mergeSeries
(in fSeries part of Rmetrics) but I could not make it behave quite the
same. In R it expected a timeSeries object and a matrix of the same
row count. In S-PLUS when using the
2004 Dec 09
1
Finmetrics positions
Finmetrics (in S-PLUS) has teh functions "positions" (return the
positions of an ordered data object). Is there an equivalent to it in
Remtrics?
I am applying it to teh data of a time series.
2009 Apr 17
1
S+FinMetrics
please !, what is the R equivalents for the S-plus package : S+FinMetrics
thanks
hassan
[[alternative HTML version deleted]]
2006 Jul 06
2
KPSS test
Hi,
Am I interpreting the results properly? Are my conclusions correct?
> KPSS.test(df)
---- ----
KPSS test
---- ----
Null hypotheses: Level stationarity and stationarity around a linear trend.
Alternative hypothesis: Unit root.
----
Statistic for the null hypothesis of
level stationarity: 1.089
Critical values:
0.10 0.05 0.025 0.01
0.347 0.463
2006 Sep 29
1
time-series packages
Greetings,
Are there R packages that perform time-series analyses - particularly
estimation of ARIMA models along with unit-root tests? I know that
FinMetrics in the S-Plus program will do it, but I'm looking for R
packages, as well any reference material for estimating time-series'
models in R.
Thanks in advance,
David
--
2008 May 07
1
dlm with constant terms
Hi,
I am trying to figure how to use dlm with constant terms
(possibly time-dependent) added to both equations
y_t = c_t + F_t\theta_t + v_t
\theta_t = d_t + G_t\theta_{t-1} + w_t,
in the way that S-PLUS Finmetrics does?
Is there any straightforward way to transform the above to
the default setup?
Thanks,
Tsvetan
--------------------------------------------------------
NOTICE: If received in
2005 Apr 11
1
TSeries GARCH Estimates accuracy
Hi,
I am trying to fit a GARCH(1,1) model to a financial timeseries using the 'garch' function in the tseries package. However the parameter estimates obtained sometimes match with those obtained using SAS or S-Plus (Finmetrics) and sometimes show a completely different result. I understand that this could be due to the way optimization of MLEs are done, however, I would appreciate any
2006 Apr 24
1
Modeling inverse relationship with copula
Dear r list,
I posted this on the S list last week since i'm using some of the
FinMetrics functions on copula. Knowing there is a copula package in R,
I figure this would be an appropriate forum to ask this question.
I want to model inverse relationship between two (non-normal,
non-symmetric) marginals with the gumbel copula, or with any copula.
Say, x is lognormal and y is norm. Since
2007 Oct 31
2
reversing perspective plot axis
Hi,
I am trying to create a perspective plot with Time on the x-axis,
Underlying Price on the y-axis, and Option Price on the z-axis. But
I don't like the way my x-axis is setup. Right now, Time is this
sequence.
Time = seq(from = 1/52, to = 1, by=1/52)
That results in the x-axis going from 0 at the back, to 1 near the
foreground corner.(If that makes any sense) I want to do the
2005 May 26
0
Prad or V5.2
Hello,
Does someone out there ever heard about PRAD or V5.2. Is there any link with
Digium's TE110P?
Thanks for any enlightments
Lamine
2007 Apr 10
1
Testing invertibility of an AR model
I've looked around but I can't find the method in R for testing whether
the resulting estimated coefficients
of an AR model imply that the model is invertible.
To quote from eric zivot's blue book :
" the AR(p) is invertible provided the rots of the characteristic
equation
Phi(z) = 1 - phi_1*z - phi_2*z^2 = phi_3*z^3 - ..... Phi_p*z^p = 0 lie
outside
the complex circle".
2013 Feb 28
0
R and S+ Courses: Brisbane, Melbourne & Sydney
Hi, (apologies for cross-posting)
SolutionMetrics is presenting Introductory & Intermediate R and S+ courses in Brisbane, Melbourne & Sydney - March & April 2013.
S+ FinMetrics course in Sydney - June 2013. More info below.
Course Schedule - Click Here<http://bit.ly/13lJ4ag>
To book, please email enquiries@solutionmetrics.com.au<mailto:enquiries@solutionmetrics.com.au>
2004 Sep 22
5
block statistics with POSIX classes
I have a monthly price index series x, the related return series y = diff(log(x)) and a POSIXlt date-time variable dp. I would like to apply annual blocks to compute for example annual block maxima and mean of y.
When studying the POSIX classes, in the first stage of the learning curve, I computed the maximum drawdown of x:
> mdd <- maxdrawdown(x)
> max.dd <- mdd$maxdrawdown
> from
2009 Feb 20
0
residuals from a fractional arima model and other questions
Dear list and Martin,
I'm testing different approaches to fit an electricity demand time series and come upon the fracdiff package (v 1.3-1) for fitting fractional ARIMA models. The following questions are motivated by this package.
1. Despite having a help page, the residuals and fitted functions don't seem to have implementation, or did i miss something obvious? Alternatively, having a
2007 Mar 15
0
Covariance matrix calc method question
I have been comparing the output of an R package to S+Finmetrics and I
notice that
the covariance matrix outputted by the two procedures is different. The
R package
computes the covariance matrix using Method 1 and I think ( but I'm not
sure ) that S+Finmetrics computes it
using Method 2.
I put in a correctionfactor (see below ) in to Method 2 in order to deal
with the fact that the var