Filter out unwanted data by removing specific data points and/or ranges of data values. The filter operation utilizes the real-time expression comparison operators (!=, ==, <, <=, >, >=). Comparison operations can be chained together to apply multiple filters.
A Single Filter
=[data stream] <operator> <value>
=[data stream] <operator1> <value1> <operator2> <value2> <operator3><value3>
In the example above, the signal, pitch, has several spikes of greater than 100 that are dominating its view range. Those spikes can be filtered out to set the spark-line y-axis range to show the signal minus the large spikes by using the following expression:
=[pitch] < 100