similar to: PANEL DATA SIMULATION(sorry for my previous email with no subject)

Displaying 20 results from an estimated 400 matches similar to: "PANEL DATA SIMULATION(sorry for my previous email with no subject)"

2011 Jan 17
0
(no subject)
Dear R community,and especially Giovanni Millo, For my master's thesis i need to simulate a panel data with the fixed effects correlated with the predicor, so i run the the following code: set.seed(1970) #######################Panel data simulation with alphai correlated with xi##################################### n <- 5 t <- 4 nt <- n*t pData <- data.frame(id =
2011 Jan 18
0
Need help in a simulation study
Dear R community,and especially Giovanni Millo, For my master's thesis i need to simulate a panel data with the fixed effects correlated with the predicor, so i run the the following code: set.seed(1970) #######################Panel data simulation with alphai correlated with xi##################################### n <- 5 t <- 4 nt <- n*t pData <- data.frame(id =
2011 Jan 17
0
PANEL DATA SIMULATION
Dear R community,and especially Giovanni Millo, For my master's thesis i need to simulate a panel data with the fixed effects correlated with the predicor, so i run the the following code: set.seed(1970) #######################Panel data simulation with alphai correlated with xi##################################### n <- 5 t <- 4 nt <- n*t pData <- data.frame(id =
2011 Jan 25
0
How to simulate a variable Xt=Wit+0.5Wit-1 with
Dear Carlos, please refrain from posting the same question umpteen times. Please consider that code is hard to read and people might not have the time to run your simulation etc. etc.. As I told you privately in response to your message on 18/1, > Re: generating correlated effects, I tried this only once, but I > didn't get it right. Simulations using this are, e.g., Hansen (2007)
2011 Dec 08
1
optimize()
Hi! I have a difficulty in the use of function optimize(). Could you help me? I want to maximize this function: ##### Logaritmo da distribui??o condicional de alpha[i] lp_alphai <- function(alphai, i, beta, tau, N){ t1 <- (N[i+1] - N[i])*log(alphai) t2 <- - (N[i+1] - N[i])*alphai*log(beta[i]) t3 <- (alphai - 1)*sum(log(times[(N[i] + 1):N[i+1]])) t4 <- -
2011 Feb 09
2
Generate multivariate normal data with a random correlation matrix
Hi All. I'd like to generate a sample of n observations from a k dimensional multivariate normal distribution with a random correlation matrix. My solution: The lower (or upper) triangle of the correlation matrix has n.tri=(d/2)(d+1)-d entries. Take a uniform sample of n.tri possible correlations (runi(n.tr,-.99,.99) Populate a triangle of the matrix with the sampled correlations Mirror the
2015 Aug 05
0
[PATCH 2/8] Reorganize pitch_arm.h, so RTCD works for intrinsics functions as well.
--- celt/arm/arm_celt_map.c | 24 +++++++++++- celt/arm/pitch_arm.h | 97 +++++++++++++++++++++++++++++++++---------------- 2 files changed, 88 insertions(+), 33 deletions(-) diff --git a/celt/arm/arm_celt_map.c b/celt/arm/arm_celt_map.c index 0c9acff..cc6b706 100644 --- a/celt/arm/arm_celt_map.c +++ b/celt/arm/arm_celt_map.c @@ -94,9 +94,14 @@ void (*const
2002 Jan 15
1
acf conf intervals +speed
Hi, I'm trying to obtain confidence intervals for auto and cross correlation estimates. I've adapted code made available by Stock and Watson that uses the Bartlett Kernel and the delta method. In R it runs really, really slow because of the loops it uses and I have 9 series that I'd like to examine (81 total combinations). It was easy enough to replace one of the while loops with a
2010 Dec 02
2
Hmisc label function applied to data frame
Hello, I'm attempting to create a data frame with correlations between every pair of variables in a data frame, so that I can then sort by the value of the correlation coefficient and see which pairs of variables are most strongly correlated. The sm2vec function in the corpcor library works very nicely as shown here: library(Hmisc) library(corpcor) # Create example data x1 = runif(50) x2 =
2014 Dec 01
0
[RFC PATCHv1] armv7: celt_pitch_xcorr: Introduce ARM neon intrinsics
Hello Timothy, Appreciate the thorough review. Have a few questions before I re-spin the patch in-line. On 28 November 2014 at 15:52, Timothy B. Terriberry <tterribe at xiph.org> wrote: > Review comments inline. > >> +if OPUS_ARM_NEON_INTR >> +noinst_LTLIBRARIES = libarmneon.la >> +libarmneon_la_SOURCES = $(CELT_SOURCES_ARM_NEON_INTR) >>
2009 May 15
2
Using column length in plot gives error
Hi I'm trying to write a generic script for processing some data which finishes off with some plots. Given Im never sure how many columns will be in my dataframe I wanted to using the following plot(spectra.wavelength, cormat, type = "l", ylim=c(-1,1), xlab="Wavelength (nm)", ylab="Correlation") however even if I specify as type="l" it appears plot
2015 May 15
0
[RFC V3 5/8] aarch64: celt_pitch_xcorr: Fixed point intrinsics
Optimize celt_pitch_xcorr function (for fixed point). Even though same code in theory should work for ARMv7 as well, turning this on only for aarch64 at the moment since there is a fixed point asm implementation for ARMv7 neon. Signed-off-by: Viswanath Puttagunta <viswanath.puttagunta at linaro.org> --- celt/arm/celt_neon_intr.c | 268 ++++++++++++++++++++++++++++++++++++++++++++++
2015 May 08
0
[[RFC PATCH v2]: Ne10 fft fixed and previous 5/8] aarch64: celt_pitch_xcorr: Fixed point intrinsics
Optimize celt_pitch_xcorr function (for fixed point). Even though same code in theory should work for ARMv7 as well, turning this on only for aarch64 at the moment since there is a fixed point asm implementation for ARMv7 neon. Signed-off-by: Viswanath Puttagunta <viswanath.puttagunta at linaro.org> --- celt/arm/celt_neon_intr.c | 268 ++++++++++++++++++++++++++++++++++++++++++++++
2014 Nov 21
0
[RFC PATCHv1] armv7: celt_pitch_xcorr: Introduce ARM neon intrinsics
Optimize celt_pitch_xcorr function (for floating point) using ARM NEON intrinsics for SoCs that have NEON VFP unit. As initial step, targeting ARMv7 NEON (VFP3+) based SoCs. To enable this optimization, use --enable-arm-neon-intrinsics configure option. This flag is not enabled by default. Compile time and runtime checks are also supported to make sure this optimization is only enabled when the
2013 Feb 20
1
Problem with levelplot() in a loop
Dear R users, I am trying to print heatmaps in a loop (with a pause). Idea is to visualize changing correlations over time and for testing I wrote this simple (reproducible) code below. My problem is that levelplot() does not produce any output when I run the code (though heatmap does). Ideally I would like to use levelplot() as it produces a neat index on the side indicating the color and the
2015 Aug 05
0
[PATCH 1/8] Move ARM-specific macro overrides to arm-specific file.
--- celt/arm/pitch_arm.h | 19 +++++++++++++++++++ celt/pitch.h | 19 ------------------- 2 files changed, 19 insertions(+), 19 deletions(-) diff --git a/celt/arm/pitch_arm.h b/celt/arm/pitch_arm.h index d5c9408..fe76f8d 100644 --- a/celt/arm/pitch_arm.h +++ b/celt/arm/pitch_arm.h @@ -75,4 +75,23 @@ void celt_pitch_xcorr_float_neon(const opus_val16 *_x, const opus_val16 *_y, #endif
2014 Nov 28
2
[RFC PATCHv1] armv7: celt_pitch_xcorr: Introduce ARM neon intrinsics
Review comments inline. > +if OPUS_ARM_NEON_INTR > +noinst_LTLIBRARIES = libarmneon.la > +libarmneon_la_SOURCES = $(CELT_SOURCES_ARM_NEON_INTR) > +libarmneon_la_CPPFLAGS = $(OPUS_ARM_NEON_INTR_CPPFLAGS) -I$(top_srcdir)/include > +endif I don't think these should be in a separate library. It brings with it lots of complications (to name one: wouldn't the .pc files need to
2015 Dec 08
2
[Aarch64 v2 02/18] Reorganize ARM CPU #ifdefs.
Jonathan Lennox wrote: > -# if defined(FIXED_POINT) > +# if defined(FIXED_POINT) && \ > + ((defined(OPUS_ARM_MAY_HAVE_NEON) && !defined(OPUS_ARM_PRESUME_NEON)) || \ > + (defined(OPUS_ARM_MAY_HAVE_MEDIA) && !defined(OPUS_ARM_PRESUME_MEDIA)) || \ > + (defined(OPUS_ARM_MAY_HAVE_EDSP) && !defined(OPUS_ARM_PRESUME_EDSP))) > opus_val32 (*const
2015 Nov 21
0
[Aarch64 v2 02/18] Reorganize ARM CPU #ifdefs.
--- celt/arm/arm_celt_map.c | 5 ++++- celt/arm/pitch_arm.h | 19 ++++++++++++++----- 2 files changed, 18 insertions(+), 6 deletions(-) diff --git a/celt/arm/arm_celt_map.c b/celt/arm/arm_celt_map.c index ee6c244..f195315 100644 --- a/celt/arm/arm_celt_map.c +++ b/celt/arm/arm_celt_map.c @@ -35,7 +35,10 @@ #if defined(OPUS_HAVE_RTCD) -# if defined(FIXED_POINT) +# if defined(FIXED_POINT)
2015 Dec 10
0
[Aarch64 v2 02/18] Reorganize ARM CPU #ifdefs.
> On Dec 8, 2015, at 12:13 PM, Timothy B. Terriberry <tterribe at xiph.org> wrote: > > Jonathan Lennox wrote: >> -# if defined(FIXED_POINT) >> +# if defined(FIXED_POINT) && \ >> + ((defined(OPUS_ARM_MAY_HAVE_NEON) && !defined(OPUS_ARM_PRESUME_NEON)) || \ >> + (defined(OPUS_ARM_MAY_HAVE_MEDIA) && !defined(OPUS_ARM_PRESUME_MEDIA)) || \