[R] problem in WRS2

[William Dunlap]

You can get this error if one of the explanatory variables is not a
factor.  E.g.
> WRS2::t2way(y ~ x1 * x2, data =
expand.grid(y=11:12,x1=letters[11:13],x2=21:24))
Error in x[[grp[i]]] :
  attempt to select less than one element in get1index

The immediate cause is that t2way uses 1:p instead of seq_len(p) when p may
be zero, but I suspect that the code should be converting some things to
factors so p cannot be zero.  Take this up with the package's maintainer.

Bill Dunlap
TIBCO Software
wdunlap tibco.com


On Wed, Nov 6, 2019 at 1:58 PM greg holly <mak.hholly using gmail.com> wrote:

> I got the following error message after running  t2way(y ~ Grup*Time, data
> = cp)
>   Error in x[[grp[i]]] :
>   attempt to select less than one element in get1index
>
> a part of the data is given below. Your help is highly appreciated.
>
> Greg
>
> > head(cp)
>   Birey Grup Time         y
> 1     1    1  Cp1 0.7916386
> 2     1    1  Cp3 1.7463777
> 3     1    1  Cp7 1.2008390
> 4     1    1 Cp14 0.6311380
> 5     1    1 Cp21 2.1563557
> 6     1    1 Cp28 1.2008390
>
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>
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