2. Syntax

IMPR_ACCE_SEISME (
    ◆ TABLE = table,
    ◆ TITRE = text,
    ◇ NOCI_REFE = _F (
         ◆ | AMAX = float,
           | VMAX = float,
           | DMAX = float,
           | INTE_ARIAS = float,
           | DURATION_PHASE_STRONG = float,
           | VITE_ABSO_CUMU = float,
           | ACCE_SUR_FAST = float,
      ),
    ◇ DUREE = float,
    ◆ SPEC_OSCI = function,
    ◇ SPEC_1_SIGMA = function,
    ◇ LIST_FREQ = listr8,
    ◇ & FREQ_MIN = float,
      & FREQ_MAX = float,
    ◇ RATIO_HV = float,
)

◆: mandatory
◇: optional
: present by default
&: together
/: only one among
|: several possible choices