create a new array which samples the old one every mult cycles. start: index of first cycle. count: number of samples. Determines whether a clock cycle is generated with a vertical bar at the beginning, denoting that a waveform changes value at the start of that clock cycle. NB this does not determine whether a waveform changes value at the end of that clock cycle. TODO: Remove this since it is unnecessary. Can use WaveValues instead. Determines whether a non-binary waveform changes value at the beginning of that clock cycle. Waveforms can be either binary or non-binary; these have different properties.