[R] error message in "sem"

John Fox jfox at mcmaster.ca
Tue Aug 12 03:34:02 CEST 2003

Dear Remko,

Can you supply the input that produced this error message?


At 04:50 PM 8/11/2003 -0700, Remko Duursma wrote:
>Dear R-helpers,
>i get a mysterious error message when using sem,  it reads:
>"Error in tapply(grad.P[arrows.2.free], ram[ram[, 1] == 2 & ram[, 4] !=  :
>         arguments must have same length"
>what does this mean?

John Fox
Department of Sociology
McMaster University
Hamilton, Ontario, Canada L8S 4M4
email: jfox at mcmaster.ca
phone: 905-525-9140x23604
web: www.socsci.mcmaster.ca/jfox

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