The AnalInit() routine is used for checking the Run Steering Parameters contained in the AnalRecord. After that, the desired histograms are booked. Depending on e.g. the readout mode ( Hits&Cluster or Raw) or on the selected RIO board (s. Sec. 3) different histogram sets can be used.
Most of the times one wants to have the same type of histogram for different areas of the detectors (e.g. for all RIO boards, for all FADCs of one RIO board etc.). Some programming utilities for booking these sets exist, see Sec.4.1.