[R] 2^3 confounded factorial experiment

[Jyoti Bhogal]

The following R commands were written:
>help.search("factorial")
>data(npk)
>npk
>coef(npk.aov)

In the output of coef command, please explain me the interpretation of coefficients of block1 to block 6 in this 2^3 confounded factorial experiment.

Thanks.
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