PPRERUN.SHC

! file PPRERUN.SHC
!      =============
! This procedure is mainly used to test the optimum span of ro3c.
! PRF pre-run will align the raw data, cut it, and if it is sorted in E,N,Z, the display_zne_hp will be called to make it sort in Z,N,E order.
! Date: 2016-6-17 Authored by Ping He

default 1 -5 The beginning time to computer maximal polarisation for ro3c
default 2 12 The end time of ro3c
default 3 Duration The duration around P-onset is (in seconds)

! PRF Pre-Run
al all p-onset
cut all -20 120
display_zne_hp

! Direct the echo channel to a FILE
echo_ch #3

! Incorporated RO3C
ro3c #1 #2

! Direct the echo channel back to terminal
echo_ch

! Delete hid traces from memory
del h:all 

! Return to the upper command level
return

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!Conclusion is that by comparison between Real angle and Theoretical angle, SomeErroneous traces would be spotted. Due to the great disparity between them (>30 degrees)
!Another finding is that usually the duration from 10-15 after P-onset is good enough