Displaying 20 results from an estimated 100 matches similar to: "Referring on the value of a counter in a loop"
2011 Sep 22
1
Error in as.vector(data) optim() / fkf()
Dear R users,
When running the program below I receive the following error message:
fit <- optim(parm, objective, yt = tyield, hessian = TRUE)
Error in as.vector(data) :
no method for coercing this S4 class to a vector
I can't figure out what the problem is exactly. I imagine that it has
something to do with "tyield" being a matrix. Any help on explaining what's
going on
2011 Nov 12
1
State space model
Hi,
I'm trying to estimate the parameters of a state space model of the
following form
measurement eq:
z_t = a + b*y_t + eps_t
transition eq
y_t+h = (I -exp(-hL))theta + exp(-hL)y_t+ eta_{t+h}.
The problem is that the distribution of the innovations of the transition
equation depend on the previous value of the state variable.
To be exact: y_t|y_{t-1} ~N(mu, Q_t) where Q is a diagonal
2000 May 03
0
Combinatorics for nonparametric tests
For some small sample sizes I would like to exemplify the combinatorics
underlying certain nonparametric tests like Mann-Whitney-Wilcoxon,
Kruskal-Wallis and Spearman's rank correlation. I have written a
function all.perm which delivers all permutations of 1,2,...,n and
which works reasonably well. This can be used to generate P(R=r) of
Spearman's rank correlation:
2011 Jul 26
1
Optimal Code for subset of Integer Sets
Hi,
I wanted to know if there existed an good implementation in R of the
following classical subset Integers :
$P_{n,m} = {k_1, \ldots, k_m \in \mathbb{N} : k_1 + \ldots + k_m = n }$
for any integers $m < n$. There is an obvious not optimal code which would
be to run through $m$ sums and put a boolean condition to report if the
integers respect these condition but it would take $m^n$
2008 Feb 28
1
Kaiser-Meyer-Olkin
I am a beginner when it comes to using R, though fortunately I already know something about statistics. I think factor analysis should be used sparingly, but I occasionally use it. It doesn't seem to me that factanal() provides Kaiser's Measure of Sampling Adequacy, which should be computed for factor problems based on a small number of subjects, though perhaps it is elsewhere. Does anyone
2016 Oct 12
2
samba4 with external OpenLDAP
Hello all,
at the moment we are using samba 3.6.6 as pure fileserver on Debian
Wheezy with external company-wide OpenLDAP as "passdb backend"
(ldapsam). We want to use Debian Jessie, which have samba4 in stock,
unfortunately out setup doesn't work with Samba4 anymore
(NT_STATUS_UNSUCCESSFUL)
I've read somewhere that Samba4 only works with internal LDAP server,
is it correct?
2010 Oct 24
1
Optimize parameters of ODE Problem which is solved numeric
Hi,
I have a data-matrix:
> PID
sato hrs fim health
214 3 4.376430 6.582958 5
193 6 4.361825 3.138525 6
8441 6 4.205771 3.835886 7
7525 6 4.284489 3.245139 6
6806 7 4.168926 2.821833 7
5682 7 1.788707 1.212653 7
5225 6 1.651463 1.436980 7
4845 6 1.692710 1.267359 4
4552 5 1.686448 1.220539 6
2004 Jul 12
6
proportions confidence intervals
Dear R users
this may be a simple question - but i would appreciate any thoughts
does anyone know how you would get one lower and one upper confidence
interval for a set of data that consists of proportions. i.e. taking a
usual confidence interval for normal data would result in the lower
confidence interval being negative - which is not possible given the data
(which is constrained between
1997 Jul 15
3
How to write a printcap entry for remote printer
I am sharing some printers attached to Win95 boxes, and would like to be
able to do more than connect from Linux with smbclient and print via
translate. I would like to be able to specify a printcap entry for these
so as to be able to print from pine or lynx or Netscape (when I get X
running here at work).
I haven't found anything in Samba docs or LDP docs yet to tell me how to
write such
2008 Jun 03
3
How to solve a non-linear system of equations using R
Dear R-list members,
I've had a hard time trying to solve a non-linear system (nls) of equations
which structure for the equation i, i=1,...,4, is as follows:
f_i(d_1,d_2,d_3,d_4)-k_i(l,m,s) = 0 (1)
In the expression above, both f_i and k_i are known functions and l, m and s
are known constants. I would like to estimate the vector d=(d_1,d_2,d_3,d_4)
which is solution
2003 Oct 31
1
constrained nonlinear optimisation in R?
Hello. I have searched the archives but have not found anything. I
need to solve a constrained optimisation problem for a nonlinear
function (“maximum entropy formalism”). Specifically,
Optimise: -1*SUM(p_ilog(p_i)) for a vector p_i of probabilities,
conditional on a series of constraints of the form:
SUM(T_i*p_i)=k_i for given values of T_i and k_i (these are
constraints on
2011 Nov 15
10
Adding a parameter to a custom Puppet type/provider
Hi All,
I''ve downloaded a Puppet module and I''m trying to add a parameter to it by
editing lib/puppet/type/<resource>.rb. I simply added:
newproperty(:pcfree) do
desc "My description here"
end
In the corresponding file in lib/puppet/provider, I do something with
:pcfree.
Whenever I call the resource from Puppet with my new parameter, it keeps
2018 May 10
0
Using Tobit and SUR in Systemfit in R
Dear Community,
does anybody have an idea on how to estimate a system of three seemingly
unrelated regressions, two of which being TOBIT and one OLS?
Background: I am currently estimating a translog cost function and two
corresponding cost share equations using systemfit and the seemingly
unrelated regression ("SUR") specification.
However, I consider it more appropriate to estimate
2010 Mar 04
19
Mailing list's prefix
Do you think I'd break a lot of people's filters if I removed the
prefix? :) Anyone strongly for/against removing it? It seems kind of
annoying to me whenever I happen to think about it.
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2001 Sep 14
0
Samba over SSH tunnel
I am trying to see if this is even possible.
We have a network in my office of mostly Windows machines, all connected to
the internet via a firewall.
We have a co-located Linux server in another state.
I want to centralize my authentication setup, so that there is but a single
username/password combincation used accross all systems.
I have configured SSHD on the co-located Linux server to
1997 Jul 15
0
resetting printer after job removal
Does anyone know how can I reset my printers when a job is
removed? The problem is that when Win95 users remove a job from their
print queue viewer, the print job gets successfully removed from the
server, but the printer is leaved in a waiting state for more input. The
only way is to turn off the printer, then turn it on again.
Here goes my print command from smb.conf (the -h switch
in the lpr
2007 Nov 01
0
useR! 2008 - last call for tutorial proposals
As most of you already know from a previous announcement, the R user
conference
useR! 2008
is scheduled for August 12-14, 2008, and will take place at the
University of Dortmund.
PRE-CONFERENCE TUTORIALS
Before the official program, half-day tutorials will be offered
on Monday, August 11th. We invite R users to submit proposals for three
hour tutorials on special topics on R. The
2007 Nov 01
0
useR! 2008 - last call for tutorial proposals
As most of you already know from a previous announcement, the R user
conference
useR! 2008
is scheduled for August 12-14, 2008, and will take place at the
University of Dortmund.
PRE-CONFERENCE TUTORIALS
Before the official program, half-day tutorials will be offered
on Monday, August 11th. We invite R users to submit proposals for three
hour tutorials on special topics on R. The
2008 Jan 30
0
useR! 2008: submission & registration started!
We are happy to inform you that the online abstract submission and
registration for `useR! 2008' is now available online from
http://www.R-project.org/useR-2008/
This meeting of the R user community will take place at the Technische
Universit?t Dortmund, Dortmund, Germany, August 12 to 14, 2008.
The conference schedule comprises invited lectures and user-contributed
sessions as well as
2008 Jan 30
0
useR! 2008: submission & registration started!
We are happy to inform you that the online abstract submission and
registration for `useR! 2008' is now available online from
http://www.R-project.org/useR-2008/
This meeting of the R user community will take place at the Technische
Universit?t Dortmund, Dortmund, Germany, August 12 to 14, 2008.
The conference schedule comprises invited lectures and user-contributed
sessions as well as