I have an array of dimensions 4x8x15, eg,
, , WA
1997 1998 1999 2000 2001 2002 2003 2004
actual 19 23 NA 40 62 65 64 100
minus1 NA 20 23 NA 42 57 79 84
minus2 NA NA 21 27 NA 52 62 83
minus3 NA NA NA 24 30 NA 55 65
How do I call lm to evaluate 'minus1:minus3' against 'actual' such that
the results are tabulated by the third dimension?
John Charles Considine