Assume that 4 data sets have been read in, the first 2 with 100 channels and the last 2 with 50 channels.
| XSPEC> ignore 1-4:1-10 | | 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. |
| XSPEC> ign 2:1.-5. | | Ignore all channels between 1 and 5 keV in the second dataset. |