Sumspec()

Sum spectra in a given range from the specified file. (See also Focus/T)

SUMSPEC [spectra=Range or IntegerArray] [file=String] Sum spectra in Time-of-Flight

Note: Obsolete command, use Focus:T()

Sumspec

See the Focus() command for a description of the parameters, this command is functionally equivalent to Focus/T and is only kept for compatibility.