Dear All:
If y~Ga(a,b)
What's about the (n-1)y~Ga(a, (n-1)b), is this right?
Many Thanks
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Then the iter 20 vlaue suddelnly changes to a negative value and in the end the
error mesage is
non finite finite different [13]
Has any one have this experience of what the wrong is?
Thanks!
Xin
My function is:
function (parameters,y,x1,x3)
{
alpha-parameters[1:10];
beta
letter in the row. Actually, I don't
need that.
Anyone can help on this?
Thanks
Xin
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in Excel is in one column. How to let the data list as matrix.
Even I used
mcomb3-matrix(comb3,nrow,ncol=)
and use
cat(mcomb3,file=c:\comb3.xls,fill=FALSE,sep=\n).
But nothing changed.
Thanks in advance!
Xin
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can help? Please!
Thanks!
Xin Shi
My Estimation function for way two is :
function (parameters, y, x1,x2)
{
nx1 - length(x1);
nx2 - length(x2);
ny - length(y);
x1 - matrix(x1,nrow=nx1,ncol=1);
x2 - matrix(x2,nrow=nx2,ncol=1);
y - matrix(y,nrow=ny,ncol=1);
##Likelihood
(mu)-log(mu+p))-lfactorial(y)-lgamma(p)
)
else
if(y0 x10 x2==3,
L-lgamma(y+p)+p*(log(p)-log(mu+p))+y*(log(mu)-log(mu+p))-lfactorial(y)-lgamma(p)
)
else
L
}
Thanks a lot!
Xin Shi
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.
Anyone can help? Please!
Thanks!
Xin Shi
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Hi, All:
I used optim() to minimise likelihood function for fitting the data to a
partiuclar distribution. The function is converged and the value of
log-likelihood is different when I change the intial value.
Whether it means the program does not work well?
Thanks!
Xin
a lot!
Xin Shi
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phenoData object. Created a new one.
in: read.affybatch(filenames = files)
Which information I should provide furthur or the latest version of R has some
bugs?
Thanks a lot!
Xin LIU
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Dear all,
Can I get the leave-one-out cross validation error of randomForest in
R? I only found tune(), which got the 10-fold cross validation error.
Thanks for any information.
Xin LIU
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=control.errorest(k=3), mtry=2)$err
[1] 0.0533
errorest(Species ~ ., data=iris, model=randomForest, estimator = cv,
est.para=control.errorest(k=3), mtry=2)$err
[1] 0.04
Xin LIU
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Hi, Dear all R users:
Does someone know whether R can calculate the Receiver Operating
Characteristic (ROC) Curves? I didn't find it from the packages.
Thanks a lot.
--- Xin
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Dear all R users and helpers:
I wonder whether there is a library call trees ( classification trees) in
R? If there is, where can download it?
Thank you very much.
Xin Qi
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2.0.0 version now.
What should I do?
Thank you very much.
Xin
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hello:
I am trying to use biplot show relationship between PC1 and PC3 of princomp.
There is example showing how to do it with PC1 and PC2. But I am totally out
of idea for PC1 and PC3. Thanks very much for your kind help.
Best Wishes,
yours,
xin
is hot.
Thanks in adavance,
Xin Gong
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Hi All,
I plotted several distribution curves in one graph but
I do not know how to add legends say which is what
distribution. Could someone help me? Thanks,
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