2. Syntax

matr_asse_gene_c = LIRE_IMPE_MISS (
    ◆ BASE = meca fashion,
    ◆ NUME_DDL_GENE = nume_ddl_gene,
    ◇ FREQ_EXTR = float,
    ◇ INST_EXTR = float,
    ◇ UNITE_RESU_IMPE = unit (default: 30),
    ◇ ISSF =/"NON" (by default),
             /"OUI ",
    ◇ TYPE =/"BINAIRE ",
             /"ASCII" (by default),
    ◇ SYME =/"NON" (by default),
             /"OUI ",
)

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