Assume that 4 data sets have been read in, the first 2 with 100 channels and the
last 2 with 50 channels.
XSPEC> ignore **:1-10 ! The first 10 channels of all 4 data sets are
ignored.
XSPEC> ignore 80-** ! An attempt will be made to ignore channels
>80 in all four data sets (as that was
the last data set range specified).
As a result,only channels 80-100
will be ignored for data sets 1 and 2.
No change will occur for data sets 3 and 4, as
they have no channels greater than 50.
XSPEC> ign 4:1-20 3:30-40 45-** ! Channels 11-20 for data set 4 are ignored
(1-10 were ignored already) while channels
30-40 and 45-50 of data set 3 are ignored.
XSPEC> ignore 1:1-5 ! No channels are ignored, as these were
ignored at the beginning.