
Returns TRUE
if and only if all elements of a vector are identical.
minmax(x, tol=1e-6)
Vector to be tested
Relative tolerance allowed
Robin K. S. Hankin
If x
is an integer, exact equality is required. If real or
complex, a relative tolerance of tol
is required. Note that
functions such as is.magic()
and is.semimagichypercube()
use the default value for tol
. To change this,
define a new Boolean function that tests the sum to the required
tolerance, and set boolean
to TRUE
is.magic()
data(Ollerenshaw)
minmax(subsums(Ollerenshaw,2)) #should be TRUE, as per is.2x2.correct()
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