def _test(v):
assert v.nondectime in Number(), "Invalid non-decision time"
assert v.halfwidth in Positive0(), "Invalid halfwidth parameter"
def _test(v):
assert v.nondectime in Number(), "Invalid non-decision time"
assert v.shape in Positive0(), "Invalid shape parameter"
assert v.shape >= 1, "Shape parameter must be >= 1"
assert v.scale in Positive(), "Invalid scale parameter"
def _test(v):
assert v.nondectime in Number(), "Invalid non-decision time"