Hello,
In certain cases fligner.test() returns NaN statistic and NA p-value.
The issue happens when, after centering with the median, all absolute values
become constant, which ten leads to identical ranks.
Below are a few examples:
# 2 groups, 2 values each
# issue is caused by residual values
On Sat, 19 Dec 2020 17:04:59 +
"Koenker, Roger W" wrote:
> There are comments in various places, including R-extensions §5.4
> suggesting that .Fortran is (nearly) deprecated and hinting that use
> of .Call is more efficient and now preferred for packages.
My understanding of §5.4 and 5.5 is
To make C prototypes for routines defined in a *.f file you can use
gfortran's -fc-prototypes-external flag. You still have to convert 'name_'
to 'F77_NAME(name).
bill@Bill-T490:~/packages/quantreg/src$ gfortran -fc-prototypes-external
-fsyntax-only boot.f
... [elided defs of complex types] ...
/
There are comments in various places, including R-extensions §5.4 suggesting
that .Fortran is (nearly)
deprecated and hinting that use of .Call is more efficient and now preferred
for packages. I understand
and greatly appreciate its use with dyn.load() and R CMD SHLIB for development
workflow.
