Median

The aggregate forms a value that is the median of all the values of the input signal and produces an output signal that consists of a data point that has a timestamp corresponding to the end of the data group.

\[ \begin{align}\begin{aligned}x \text{ is sorted so that } x_i \le x_{i+1} \text{ for } i = 1 \dots n-1\\\begin{split}median(x) = \begin{cases} x_{(n+1)/2} & \text{if } n \text{ is odd }\\ \frac{x_{(n/2)} + x_{(n/2)+1}}{2} & \text{if } n \text{ is even } \end{cases}\end{split}\end{aligned}\end{align} \]

Configuration

Signal Name

The name of the signal at the ‘in’ port.

Operation

To use the average aggregate, the operation must be median.

Parameters

Use Only Good Quality

Only the datapoints with good Quality are used for calculation.

Default: enabled

Minimum Number Of Required Values

If set the calculation requires a minimum number of values for a good quality.

Default: unset

Output Signal Name

The name of the signal on the ‘out’ port. If empty, the Signal Name is the Output Signal Name.