'R:Warning message:longer object length is not a multiple of shorter object length using circular() & rvonmises()

I’m using library(circular) and library(lubridate) to do linear-circular regression.

When I construct my data, It turn out Warning message:

y <- circular(2*atan(c(x%*%c(0.1,0.2)))) + rvonmises(100,my=circular(0),kappa=100)

# Warning message:In circular(2 * atan(c(x %*% c(0.1, 0.2)))) + rvonmises(100, mu = circular(0),  :longer object length is not a multiple of shorter object length

Is there any suggestion? Many thanks!

r


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