show parameters

def cmd_param(args):
    '''show parameters'''
    if len(args) > 0:
        wildcard = args[0]
    else:
        wildcard = '*'
    k = sorted(mestate.mlog.params.keys())
    for p in k:
        if fnmatch.fnmatch(str(p).upper(), wildcard.upper()):
            print("%-16.16s %f" % (str(p), mestate.mlog.params[p]))