Block that outputs the total number of stages to be enabled.
The block compares the input u with the threshold
of each stage. If the input is greater than a stage threshold, the
output is set to that stage. The block outputs the total number of
stages to be enabled.
The parameter n specifies the maximum number of
stages. The stage thresholds are evenly distributed, i.e. the
thresholds for stages [1, 2, 3, ... , n] are [0,
1/n, 2/n, ... , (n-1)/n], plus a hysteresis which is by
default h=0.02/n. Once the output changes, it cannot
change for at least holdDuration seconds.