Dear all r-users,

I am getting a big problem with matrix multiplication

suppose I have,

> weight
  Weight
1       1067640
2       8871500
3      42948778
4     127583735
5      22000000
6      44000000
7      56850000
8      23805662

and,
> s
            a          b          c          d          e
f          g          h
a   402493.18 -133931.62   461483.3  -94042.86   674493.8 -1493713.2  -
714081.5 -1320551.6
b  -133931.62  192766.63  -414674.4  -36700.74  -276595.3   798034.6
382661.6   883478.4
c   461483.25 -414674.43  1618660.4  660949.18   988526.5 -2795048.7 -
1483334.1 -1761234.9
d   -94042.86  -36700.74   660949.2 1053310.43  -300291.4   -98814.9  -
263716.7  1130451.3
e   674493.80 -276595.33   988526.5 -300291.35  3090869.8 -3017747.3 -
1766040.6 -2295605.0
f -1493713.19  798034.60 -2795048.7  -98814.90 -3017747.3 10558734.1
4415620.8  6200897.7
g  -714081.51  382661.62 -1483334.1 -263716.67 -1766040.6  4415620.8
2593947.5  2341455.0
h -1320551.58  883478.39 -1761234.9 1130451.26 -2295605.0  6200897.7
2341455.0  7756557.3


But when I want to get [transpose(weight)][s][weight] using following
syntax,

t(weight)%*%s%*%weight


I got error:

Error in t(weight) %*% s %*% weight : requires numeric matrix/vector
arguments

Can anyone please tell me that where my error is?

Thanks and regards,

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