Displaying 8 results from an estimated 8 matches for "yit".
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2005 Jun 24
2
Gini with frequencies
Hi there,
I am trying to compute Gini coefficients for vectors containing income classes. The data I possess look loke this:
yit <- c(135, 164, 234, 369)
piit <- c(367, 884, 341, 74 )
where yit is the vector of income classes, and fit is the vector of associated frequencies.(This data is from Rustichini, Ichino and Checci (Journal of Public Economics, 1999) ). In ineq pacakge, Gini( ) doesn't seem to handle frequ...
2007 Nov 04
1
hierarchical mixed model
I would like to fit a 2-level mixed model:
yit=a+a[i]+a[it] +(b+b[i]+b[it])*xit+eps[it]
However, the variance of the second level components should depend on the group, i.e. sigma for a[it] and b[it] should be [i] specific.
I do not know whether this is conceptually right in the mixed model context...
In case it stands, how should the formul...
2002 Jun 18
3
Executing an windows application installer that check for wi ndow s version?
Hi All
Andrily, Thanks for the information. I've tried setting the config file. YIt doesn't work. I've checked with the application support. According to them, the OS check is done by InstallShield product functionality. Anyone has any idea how Installshiled detects the version of os ( can't find such info on their website!) and how we can workaround it.
Thanks again...
2006 Oct 30
1
Random intercept-slope correlation (nlme)
Dear list members,
I am working with a multilevel growth curve, that in its simplest form goes
like follows:
Yit = Ai + Bi t + eit (the error term is assumed to follow an AR(1)
autorregressive process)
One major topic in my research is the convergence in the values of Y over
time. Thus, I am interested in the relationship between the random effects
for the intercept and the slope, and I have a couple of...
2008 Sep 07
1
an error to call 'gee' function in R
...e count responses. I generated the data like this:
Set ?0 = ?1 = 1, ?0 = 3, and n = 50.
For each 1 ? i ? n,
Simulate xi from N (1, 1).
Simulate zi0 and zit from
zi0 follows i.d. Poisson (?0) ,
zit | xi follows i.d. Poisson (?it) , 1 ? t ? 3,
log (?it) = log(E (zit | xi)) = ?0t + xi?1t = 1+xi.
Let yit = zi0 + zit, 1 ? t ? 3.
So my data frame, let me call it 'simdata', the first 10 rows look like this:
id y.1 y.2 y.3 x
1 3 5 6 -0.06588626
2 6 7 6 -0.08265981
3 6 8 13 0.58307719
4 22 21 28 2.21099940
5 5 12 8 1.06299869
6 8 21...
2011 Jan 09
1
question about the chow test of poolability
Good day R-listers,
My question is more a statistical question than an R related question,
so please bear with me
i'm currently applying the chow test of poolability
in fact i'm working with panel N=17 T=5 , and my model looks like
this : Yit= a0+B1X1+B2X2+B3X3+B4X4+eit
My question is the following when i'm Testing for the equality of
the coefficients of the unpooled data (the last stage) many of my
constraints get dropped, this indeed impact the degree of freedom of
my F statistic , and would like to understand the reason?
is t...
2014 Jun 24
3
[PATCH 1/2] Drop dosutil/mdiskchk.com
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2008 Jun 30
4
Rebuild of kernel 2.6.9-67.0.20.EL failure
Hello list.
I'm trying to rebuild the 2.6.9.67.0.20.EL kernel, but it fails even without
modifications.
How did I try it?
Created a (non-root) build environment (not a mock )
Installed the kernel.scr.rpm and did a
rpmbuild -ba --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee
prep-out.log
The build failed at the end:
Processing files: kernel-xenU-devel-2.6.9-67.0.20.EL
Checking