1 
x.center 

y.center 

radius 

... 
1 2 3 4 5 6 7 8 9 10 11 12 13  ## Should be DIRECTLY executable !! 
## ==> Define data, use random,
## or do help(data=index) for the standard data sets.
## The function is currently defined as
function (x.center, y.center, radius = r, ...)
{
nseg = 360
xx < x.center + radius * cos(seq(0, 2 * pi, length.out = nseg))
yy < y.center + radius * sin(seq(0, 2 * pi, length.out = nseg))
print(x.center)
return(cbind(xx, yy))
}

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