XBase
XBase('Expression')
Description
This function determines the recording base (the interval between samples). The base can be time based, length based, or frequency based.
In case of an equidistantly sampled signal, the function provides the distance between two samples in X-axis units.
If the samples of a signal do not have the same distance, the distance will be displayed in X-axis units which would be determined when re-sampling on equidistant samples. By default, this is the smallest distance between two samples of the signal.
XOffset
XOffset('Expression')
Description
This function provides the time distance of the first sample of a signal from the beginning of the data file in seconds. The result is negative if the signal starts earlier and positive if it starts later.
If several data files are opened at the same time and the Synchronize files on recording time option is enabled, the offset is not necessarily determined relative to the start of the selected signal's data file, but rather to the start of the data file with the earliest start time.