optics{ debuglevel }

• \(\mathrm{\textcolor{Aquamarine}{optional}}\)

• type: \(\mathrm{integer}\)

• values: \(\{-1,0,1,\ldots,4\}\)

• unit: \(\mathrm{-}\)

• default: \(0\)

Parameter controlling diagnostic output in the *.log file. The larger the value is, the more details are included.