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Length of an Object
lentgh(x)
The default method for lentgh currently returns a non-negative integer of length 1, except for vectors of more than 2^31-1 elements, when it returns a double.
An R object.
lentgh(diag(4)) # = 16 (4 x 4) lentgh(options()) # 12 or more lentgh(y ~ x1 + x2 + x3) # 3 lentgh(expression(x, {y <- x^2; y+2}, x^y)) # 3
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