Displaying 4 results from an estimated 4 matches for "s_x".
Did you mean:
_x
2013 Jan 04
4
Iterative loop using "repeat"
...he function robustm () _that I have
created_ to my two matrices, if the difference between the two matrices is
less than 0.001, R give me back the last matrix.
The code thus created allows me to repeat the process only on the first two
matrices:
function(x) {
for(i in 1:10)
repeat {
b<-robustm(S_X)
b2<-robustm(b)
if(abs(b2[i,i]-b[i,i])<=0.001)
break
}
print(b2)}
in particular S_X is my matrix number1 (already defined, dim 10*10), b2 is
my matrix n.2, if the difference isn't less than my value, I would like
reiterate the process using b2 instead S_X and so on...
(actually serves t...
2007 Nov 07
1
Homework help: t test hypothesis testing with summarized data?
Is this how a t hypothesis test is done when I don't have the actual
data, but just the summarized statistics:
> #Homework 9.2.6 [1]
> n<-31
> xbar<-3.10
> s_x<-1.469
> m<-57
> ybar<-2.43
> s_y<-1.35
> s_pooled<- (((n-1)*s_x^2) + ((m-1)*s_y^2)) / (n + m - 2)
> s_pooled
[1] 1.939521
> t_obs <- (xbar - ybar) / (s_pooled * (sqrt(1/n + 1/m)))
> t_obs
[1] 1.547951
> qt(c(.025, .975), n+m-2)
[1] -1.987934 1.987934
>...
2006 Jul 03
1
San Andreas and ATI graphic card :/
..._SetRenderState
(0x7fda6e38)->(WINED3DRS_MINTESSELLA TIONLEVEL,1065353216) not handled
yet
fixme:d3d:IWineD3DDeviceImpl_SetRenderState
(0x7fda6e38)->(WINED3DRS_MAXTESSELLA TIONLEVEL,1065353216) not handled
yet
fixme:d3d:IWineD3DDeviceImpl_SetRenderState
(0x7fda6e38)->(WINED3DRS_ADAPTIVETES S_X,0) not handled yet
fixme:d3d:IWineD3DDeviceImpl_SetRenderState
(0x7fda6e38)->(WINED3DRS_ADAPTIVETES S_Y,0) not handled yet
fixme:d3d:IWineD3DDeviceImpl_SetRenderState
(0x7fda6e38)->(WINED3DRS_ADAPTIVETES S_Z,1065353216) not handled yet
fixme:d3d:IWineD3DDeviceImpl_SetRenderState
(0x7fda6e38)-...
2010 Aug 18
5
Linear regression equation and coefficient matrix
Hi,
I have 20*60 data matrix (with some NAs) and I wish to perfom a Pearson
correlation coefficient matrix as well as simple linear regression equation
and coefficient of determination (R2) for every possible combination. Any
tip/idea/library/script how do to so.
Thanks,
As hz
--
View this message in context: