search for: wadud

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2020 Oct 15
2
package(moments) issue
...ere these errors > occur. E.g., use > > tryCatch(anscombe.test(x), error=function(e) list(p.value=NA)) > > instead of ascombe.test (this assumes you will only look at p.value later > - add other entries as needed.). > > -Bill > > On Thu, Oct 15, 2020 at 12:09 PM Sania Wadud <sania.wadud at gmail.com> > wrote: > >> Hi all, >> >> While running the anscombe.test in R, I'm getting an error of *Error in if >> (pval > 1) pval <- 2 - pval : missing value where TRUE/FALSE needed* for a >> few time series columns whereas for...
2020 Oct 15
0
package(moments) issue
...ine a cube_root function for reals cube_root <- function (x) sign(x) * abs(x)^(1/3) and change the z<-... line to use cube_root() instead of ^(1/3). z <- (1 - 2/(9 * a) - cube_root(((1 - 2/a)/(1 + xx * sqrt(2/(a - 4))))))/sqrt(2/(9 * a)) -Bill On Thu, Oct 15, 2020 at 3:15 PM Sania Wadud <sania.wadud at gmail.com> wrote: > Hi Bill, > > Thanks for prompt reply and letting me know a way around it. > > I have more than 1200 observations and not all the values are the same. > However, my data points are quite similar, for example, > 0.079275, 0.078867, 0.070...
2020 Oct 15
0
package(moments) issue
...use tryCatch() to return some special value where these errors occur. E.g., use tryCatch(anscombe.test(x), error=function(e) list(p.value=NA)) instead of ascombe.test (this assumes you will only look at p.value later - add other entries as needed.). -Bill On Thu, Oct 15, 2020 at 12:09 PM Sania Wadud <sania.wadud at gmail.com> wrote: > Hi all, > > While running the anscombe.test in R, I'm getting an error of *Error in if > (pval > 1) pval <- 2 - pval : missing value where TRUE/FALSE needed* for a > few time series columns whereas for most of the series the functi...
2007 Mar 02
2
sampling random groups with all observations in the group
...easier way to do this? checked the package 'sampling' or command 'sample', but they cant do exactly the same thing. I was wondering if someone on this list will be able to share his/her knowldege? Thanks in advance, Zia ********************************************************** Zia Wadud PhD Student Centre for Transport Studies Department of Civil and Environmental Engineering Imperial College London London SW7 2AZ Tel +44 (0) 207 594 6055 [[alternative HTML version deleted]]
2020 Oct 15
2
package(moments) issue
Hi all, While running the anscombe.test in R, I'm getting an error of *Error in if (pval > 1) pval <- 2 - pval : missing value where TRUE/FALSE needed* for a few time series columns whereas for most of the series the function is working fine. I have checked for those specific columns for missing values. However, there is no NA/NAN value in the dataset. I have also run kurtosis for
2006 Dec 04
1
package mgcv, command gamm
...with 10000 observations) I am running against memory all the time (it says cannot allocate a vector of size 'some number). I used it on a 3GB RAM machine and I am suspicious if it is something else. Many thanks in advance, Zia ********************************************************** Zia Wadud PhD Student Centre for Transport Studies Department of Civil and Environmental Engineering Imperial College London London SW7 2AZ Tel +44 (0) 207 594 6055 [[alternative HTML version deleted]]