Displaying 19 results from an estimated 19 matches for "i_n".
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2010 Aug 25
3
What does this warning message (from optim function) mean?
...?
Thanks a lot for your help.
Maomao
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> p<-optim(c(0,0,0), f, method ="BFGS", hessian =T, y=y,X=X,W=W)
There were 31 warnings (use warnings() to see them)
> warnings()
Warning messages:
1: In log(det(I_N - pd * wd - po * wo - pw * ww)) : NaNs produced
2: In log(det(I_N - pd * wd - po * wo - pw * ww)) : NaNs produced
3: In log(det(I_N - pd * wd - po * wo - pw * ww)) : NaNs produced
4: In log(det(I_N - pd * wd - po * wo - pw * ww)) : NaNs produced
5: In log(det(I_N - pd * wd - po * wo - pw * ww))...
2010 Feb 09
1
"1 observation deleted due to missingness" from summary() on the result of aov()
...---
Signif. codes: 0 ?***? 0.001 ?**? 0.01 ?*? 0.05 ?.? 0.1 ? ? 1
1 observation deleted due to missingness
#######################
a=3
b=4
c=5
A=1:a
B=1:b
C=1:c
n=3
X=matrix(nr=a*b*c*n,nc=n)
colnames(X)=LETTERS[1:n]
for(i_a in 1:a-1) {
for(i_b in 1:b-1) {
for(i_c in 1:c-1) {
for(i_n in 1:n-1) {
X[((i_a * b + i_b) * c + i_c) * n + i_n + 1, ] = c(i_a+1, i_b+1, i_c+1)
}
}
}
}
set.seed(0)
Y=matrix(nr=a*b*c*n,nc=1)
for(i in 1:(a*b*c)) {
for(i_n in 1:n-1) {
fa=X[i,'A']
fb=X[i,'B']
fc=X[i,'C']
#Y[(i-1)*n+i_n,1]= fa +fb +...
2010 Mar 09
1
error in a function
Hallo!
I have the following function:
cLL_beta <- function(beta){
sumterm=0
a=1
b=0
S=I_n-lambda*w
R=I_n-rho*w
det_R=det(S)
det_S=det(R)
for (i in 1:t){
b=i*n
y_ausgew=y_tilde[a:b]#y_ausgew ist numeric
y_aus=matrix(y_ausgew)#Typen anpassen
X_ausgew=X[a:b,]#X_ausgew ist eine Matrix
x_tilde=X_ausgew-1/t*x_t #x_tilde ist auch eine Matrix
####X_aus=matrix(X_ausgew)
V1=R%*%(S%*%y_aus-x_til...
2013 Jan 11
0
Manual two-way demeaning of unbalanced panel data (Wansbeek/Kapteyn transformation)
...er
##########################
library(MASS)
getQ<-function(object,t.index,i.index){
t.ind<-object[,t.index]
i.ind<-object[,i.index]
nam<-unique(i.ind)
tim<-unique(t.ind)
n<-nrow(object)
N<-length(nam)
T<-length(tim)
I<-matrix(0,n,n)
I[row(I)==col(I)] <- 1
I_N<-matrix(0,N,N)
I_N[row(I_N)==col(I_N)] <- 1
I_T<-matrix(0,T,T)
I_T[row(I_T)==col(I_T)] <- 1
D1<-data.frame()
for(t in tim){
D1<-rbind(D1,I_N)
}
D1<-data.matrix(D1[as.vector(table(i.ind,t.ind))==1,])
D2<-data.frame()
for(i in nam){
D2<-rbind(D2,I_T)
}
D2&l...
2011 Apr 20
4
[LLVMdev] GEP vs IntToPtr/PtrToInt
...int value 'i' is computed by a lot of int variables that
are converted from ptr (p1,p2...pn) by ptrtoint, then if we inttoptr i
to a point p, how should I decide which pointer value the 'p' forms?
If those p_j are ptrtoint to a i_j, and the computation for i is i =
i_0 + i_1 + ... i_n, does it mean
we can take either p_j as a base pointer, and other int variables
its offset, say we take p_2 as the base pointer, and the p from i
points to
p_2 + (i_0 + i_1 + i_3 + .. i_n)
?
So in the transformation example, the result is different when we take
%196 or %193 as a base po...
2010 Sep 04
3
How can I fixe convergence=1 in optim
Hi R users,
I am using the optim funciton to maximize a log likelihood function. My
code is as follows:
p<-optim(c(-0.2392925,0.4653128,-0.8332286, 0.0657, -0.0031, -0.00245,
3.366, 0.5885, -0.00008,
0.0786,-0.00292,-0.00081, 3.266, -0.3632, -0.000049, 0.1856,
0.00394, -0.00193, -0.889, 0.5379, -0.000063,
0.213, 0.00338, -0.00026, -0.8912, -0.3023, -0.000056), f,
2011 Apr 20
0
[LLVMdev] GEP vs IntToPtr/PtrToInt
...s computed by a lot of int variables that
> are converted from ptr (p1,p2...pn) by ptrtoint, then if we inttoptr i
> to a point p, how should I decide which pointer value the 'p' forms?
>
> If those p_j are ptrtoint to a i_j, and the computation for i is i =
> i_0 + i_1 + ... i_n, does it mean
> we can take either p_j as a base pointer, and other int variables
> its offset, say we take p_2 as the base pointer, and the p from i
> points to
> p_2 + (i_0 + i_1 + i_3 + .. i_n)
> ?
>
> So in the transformation example, the result is different when we...
2011 Apr 20
0
[LLVMdev] GEP vs IntToPtr/PtrToInt
...s computed by a lot of int variables that
> are converted from ptr (p1,p2...pn) by ptrtoint, then if we inttoptr i
> to a point p, how should I decide which pointer value the 'p' forms?
>
> If those p_j are ptrtoint to a i_j, and the computation for i is i =
> i_0 + i_1 + ... i_n, does it mean
> we can take either p_j as a base pointer, and other int variables
> its offset, say we take p_2 as the base pointer, and the p from i
> points to
> p_2 + (i_0 + i_1 + i_3 + .. i_n)
> ?
So, in your example, if you do:
i1 = ptrtoint p1;
i2 = ptrtoint p2;...
2011 Apr 20
2
[LLVMdev] GEP vs IntToPtr/PtrToInt
...of int variables that
>> are converted from ptr (p1,p2...pn) by ptrtoint, then if we inttoptr i
>> to a point p, how should I decide which pointer value the 'p' forms?
>>
>> If those p_j are ptrtoint to a i_j, and the computation for i is i =
>> i_0 + i_1 + ... i_n, does it mean
>> we can take either p_j as a base pointer, and other int variables
>> its offset, say we take p_2 as the base pointer, and the p from i
>> points to
>> p_2 + (i_0 + i_1 + i_3 + .. i_n)
>> ?
>>
>> So in the transformation example, the...
2008 Aug 24
0
[LLVMdev] Dependence Analysis [was: Flow-Sensitive AA]
...xpressions used as GEP indices.
I assume, GEP indices (except indexing into struct) are interpreted as
signed integers. It isn't explicitly stated in the LangRef, but the code
seems to treat them this way. Am I correct?
If the result of an affine expression:
a_1*i_1 + a_2*i_2 + ... + a_n*i_n
is interpreted as signed value during the program run, it should be safe
to assume during the program analysis that all operations (coefficients)
are signed - signed evaluation of such an expression will bring the same
result as evaluation of the expression using original signedness and
interpr...
2011 Apr 20
0
[LLVMdev] GEP vs IntToPtr/PtrToInt
...t
>>> are converted from ptr (p1,p2...pn) by ptrtoint, then if we inttoptr i
>>> to a point p, how should I decide which pointer value the 'p' forms?
>>>
>>> If those p_j are ptrtoint to a i_j, and the computation for i is i =
>>> i_0 + i_1 + ... i_n, does it mean
>>> we can take either p_j as a base pointer, and other int variables
>>> its offset, say we take p_2 as the base pointer, and the p from i
>>> points to
>>> p_2 + (i_0 + i_1 + i_3 + .. i_n)
>>> ?
>>>
>>> So in the...
2011 Apr 05
0
[LLVMdev] GEP vs IntToPtr/PtrToInt
On Mon, Apr 4, 2011 at 7:10 AM, John Criswell <criswell at illinois.edu> wrote:
> On 4/4/2011 6:45 PM, Eli Friedman wrote:
>>
>> On Mon, Apr 4, 2011 at 5:02 PM, Arushi Aggarwal<arushi987 at gmail.com>
>> wrote:
>>>
>>>> Hi,
>>>> Is it correct to convert,
>>>> %196 = load i32* %195, align 8
2011 Apr 20
1
[LLVMdev] GEP vs IntToPtr/PtrToInt
...re converted from ptr (p1,p2...pn) by ptrtoint, then if we inttoptr i
>>>> to a point p, how should I decide which pointer value the 'p' forms?
>>>>
>>>> If those p_j are ptrtoint to a i_j, and the computation for i is i =
>>>> i_0 + i_1 + ... i_n, does it mean
>>>> we can take either p_j as a base pointer, and other int variables
>>>> its offset, say we take p_2 as the base pointer, and the p from i
>>>> points to
>>>> p_2 + (i_0 + i_1 + i_3 + .. i_n)
>>>> ?
>>>>...
2011 Apr 04
2
[LLVMdev] GEP vs IntToPtr/PtrToInt
On 4/4/2011 6:45 PM, Eli Friedman wrote:
> On Mon, Apr 4, 2011 at 5:02 PM, Arushi Aggarwal<arushi987 at gmail.com> wrote:
>>
>>> Hi,
>>> Is it correct to convert,
>>> %196 = load i32* %195, align 8 ;<i32> [#uses=1]
>>> %197 = zext i32 %196 to i64 ;<i64> [#uses=1]
>>> %198 =
2008 Aug 22
5
[LLVMdev] Dependence Analysis [was: Flow-Sensitive AA]
>However, there is one issue I have ignored - possibility of overflow in
>the index expression. Suppose, we have such a loop:
> for (i8 i = 0; i != 200; ++i) {
> A[2 * i + 5] = ...
> ... = A[2 * i + 3]
> }
>If both index expressions are evaluated in 8-bit arithmetic,
>then the dependence equation should be solved in modular arithmetic:
> 2 * i + 5 == 2 * (i +
2008 Apr 09
0
energy 1.1-0 with dcov
...g
independence of random vectors. It satisfies 0<=R<=1 and R=0 only if
independence holds. Distance covariance V determines a statistically
consistent test of independence.
The distance covariance test is theoretically related to, but different
from the original test based on coefficient I_n implemented in indep.etest.
The new dcov.test is faster by a factor O(n) than indep.etest.
With the introduction of a second and faster test, we provide a new
function indep.test with a choice of methods to obtain either test. The
original indep.etest is now deprecated.
Reprints of the article...
2008 Apr 09
0
energy 1.1-0 with dcov
...g
independence of random vectors. It satisfies 0<=R<=1 and R=0 only if
independence holds. Distance covariance V determines a statistically
consistent test of independence.
The distance covariance test is theoretically related to, but different
from the original test based on coefficient I_n implemented in indep.etest.
The new dcov.test is faster by a factor O(n) than indep.etest.
With the introduction of a second and faster test, we provide a new
function indep.test with a choice of methods to obtain either test. The
original indep.etest is now deprecated.
Reprints of the article...
2008 Apr 24
2
inverse F distribution in R?
Dear all,
I'm looking for a function that calls the inverse F-distribution.
Something equivalent to FINV in matlab or excel.
Does anyone know if such a function already exists for R? (I haven't
been able to find one.)
Thanks for any leads.
Best,
Jennifer
2009 Feb 12
1
problem when using xapian's static libs in windows
...D@std@@V?$allocator at D@2@@std@@@Z)
libbackend.lib(dbfactory_remote.obj) : error LNK2001: ????????? "public: virtual class Xapian::Document::Internal * __thiscall RemoteDatabase::open_document(unsigned int,bool)const " (?open_document at RemoteDatabase@@UBEPAVInternal at Document@Xapian@@I_N at Z)
libnet.lib(progclient.obj) : error LNK2001: ????????? "public: virtual class Xapian::Document::Internal * __thiscall RemoteDatabase::open_document(unsigned int,bool)const " (?open_document at RemoteDatabase@@UBEPAVInternal at Document@Xapian@@I_N at Z)
libnet.lib(tcpclient.obj) : er...