Example in "Applied Spatial Analysis with R" giving error

Example from page 29, Chapter 2.3 from "Applied Spatial Analysis with R"

I am new to R...just trying to replicate the example from the book.

m <- matrix(c(0,0,1,1), ncol = 2, dimnames = list(NULL, + c ("min",
"max")))

Error in +c("min", "max") : invalid argument to unary operator

Thoughts?

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