search for: hydinghua

Displaying 6 results from an estimated 6 matches for "hydinghua".

2006 May 12
3
Maximum likelihood estimate of bivariate vonmises-weibulldistribution
...our plot for a particular copula and on what is computed the > Kendall's tau? > > Thanks, > > Aziz > > -----Original Message----- > From: Dimitris Rizopoulos > [mailto:dimitris.rizopoulos at med.kuleuven.be] > Sent: May 12, 2006 9:57 AM > To: Chaouch, Aziz; hydinghua at gmail.com > Cc: r-help at stat.math.ethz.ch > Subject: Re: [R] Maximum likelihood estimate of bivariate > vonmises-weibulldistribution > > the choice of the copula is, in fact, a model selection problem. > First, you could have a look at the contour plots of different > co...
2007 Aug 02
2
y axix number into horizontal direction
Dear R users, I used plot() and mtext() functions to draw a plot. The numbers: 0,20,35, 40,60,80,100 were in the vertical direction. I'd like to transfer them into the horizontal direction. plot(0,0,xaxt="n",type="n", ylim=c(0,100)) mtext("35",side=2,at=35) Any suggestion? Thanks. Rebecca [[alternative HTML version deleted]]
2006 Oct 02
2
R function to compute kappa statistics for two vector
Dear R-user, Did anybody know how to calculate the kappa statistics of two vectors for the agreement? for example: a<-c(0,1,0,0,1,0) b<-c(0,1,1,0,0,1) I know the percent of agreement is 3/6, but how to get the kappa? [[alternative HTML version deleted]]
2006 Jun 30
5
median of gamma distribution
Doese anyone know a R function to find the median of a gamma distribution? [[alternative HTML version deleted]]
2006 Sep 10
1
R number output format
I'd like to save the number 0.0000012 to a file just as it appears, but when I dput(0.0000012, "t.txt"), I got 1.2e-06, NOT 0.0000012. Anybody knows how I can do this? > 0.0000012 [1] 1.2e-06 > as.character(0.0000012) [1] "1.2e-06" > dput(0.0000012, "t.txt") Thanks. [[alternative HTML version deleted]]
2006 May 11
2
Maximum likelihood estimate of bivariate vonmises-weibull distribution
Hi, I'm dealing with wind data and I'd like to model their distribution in order to simulate data to fill-in missing values. Wind direction are typically following a vonmises distribution and wind speeds follow a weibull distribution. I'd like to build a joint distribution of directions and speeds as a VonMises-Weibull bivariate distribution. First is this a stupid question? I'm