Undefined function or variable "scale".

Error in <a href="matlab:matlab.internal.language.introspective.errorDocCallback('load_CL31_BigSur_2018', 'D:\DATA\BigSur_2018\Scientific_analysis\programs\ceilo\load_CL31_BigSur_2018.m', 157)" style="font-weight:bold">load_CL31_BigSur_2018</a> (<a href="matlab: opentoline('D:\DATA\BigSur_2018\Scientific_analysis\programs\ceilo\load_CL31_BigSur_2018.m',157,0)">line 157</a>)
if scale==1

Error in <a href="matlab:matlab.internal.language.introspective.errorDocCallback('read_daily_rawceilo_CL31_BigSur_2018', 'D:\DATA\BigSur_2018\Scientific_analysis\programs\ceilo\read_daily_rawceilo_CL31_BigSur_2018.m', 43)" style="font-weight:bold">read_daily_rawceilo_CL31_BigSur_2018</a> (<a href="matlab: opentoline('D:\DATA\BigSur_2018\Scientific_analysis\programs\ceilo\read_daily_rawceilo_CL31_BigSur_2018.m',43,0)">line 43</a>)
        [ceil_utc_cat,ceil_date,ceil_range,ceil_b_cat,cloudcode,cloud1,cloud2,cloud3,ceilo_data]=load_CL31_BigSur_2018(date,ceil_filename);

Error in <a href="matlab:matlab.internal.language.introspective.errorDocCallback('Auto_CL31_daily_process_BigSur_2018', 'D:\DATA\BigSur_2018\Scientific_analysis\programs\ceilo\Auto_CL31_daily_process_BigSur_2018.m', 42)" style="font-weight:bold">Auto_CL31_daily_process_BigSur_2018</a> (<a href="matlab: opentoline('D:\DATA\BigSur_2018\Scientific_analysis\programs\ceilo\Auto_CL31_daily_process_BigSur_2018.m',42,0)">line 42</a>)
    eval([ 'read_daily_rawceilo_CL31_', cruise])