[R] Contrasts with an interaction. How does one specify the dummy variables for the interaction

[Mark Difford]

John,

There is a good example of one way of doing this in "multcomp-examples.pdf"
of package multcomp. See pages 8 to 10.

Regards, Mark.

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Mark Difford (Ph.D.)
Research Associate
Botany Department
Nelson Mandela Metropolitan University
Port Elizabeth, South Africa
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