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Check Numeric Trend
assert_constant(x, ...)assert_decreasing(x, ...)assert_increasing(x, ...)
assert_decreasing(x, ...)
assert_increasing(x, ...)
Throws an error, if any, and returns x invisibly otherwise.
x
A numeric object to be checked.
numeric
Extra parameters to be passed to internal methods.
N. Frerebeau
Other checking methods: assert_dim(), assert_empty(), assert_infinite(), assert_length(), assert_lower(), assert_missing(), assert_names(), assert_numeric, assert_package(), assert_square(), assert_type(), assert_unique()
assert_dim()
assert_empty()
assert_infinite()
assert_length()
assert_lower()
assert_missing()
assert_names()
assert_numeric
assert_package()
assert_square()
assert_type()
assert_unique()