AOFlagger
Automatic flagging in time/freq windows using Andre Offringa’s advanced aoflagger.
inputs
type
- type:
string- default:
aoflag- doc:
Case-insensitive step type; must be ‘aoflagger’ (or ‘aoflag’) .
autocorr
- type:
boolean- default:
True- doc:
Flag autocorrelations ?
count.path
- type:
string- default:
""- doc:
The directory where to create the flag percentages table. If empty, the path of the input MS is used .
count.save
- type:
boolean- default:
False- doc:
If true, the flag percentages per frequency are saved to a table with extension
.flagfreqand percentages per station to a table with extension.flagstat. The basename of the table is the MS name (without extension) followed by the stepname and extension.
keepstatistics
- type:
boolean- default:
True- doc:
Write the quality statistics ?
memorymax
- type:
float- doc:
Maximum amount of memory (in GB) to use. <=0 means no maximum. As stated above, this affects flagging accuracy .
- default:
0
memoryperc
- type:
int- default:
0- doc:
If >0, percentage of the machines memory to use. If memorymax nor memoryperc is given, all memory will be used (minus 2 GB (at most 50%) for other purposes). Accepts only integer values (LOFAR v2.16). Limiting the available memory too much affects flagging accuracy; in general try to use at least 10 GB of memory.
overlapmax
- type:
int- doc:
Maximum overlap value (0 is no maximum) .
- default:
0
overlapperc
- type:
float- default:
0- doc:
If >0, percentage of time window to be added to the left and right side for overlap purposes (to minimize boundary effects). If overlapmax is not given, it defaults to 1%.
pedantic
- type:
boolean- default:
False- doc:
Be more pedantic when flagging ?
pulsar
- type:
boolean- default:
False- doc:
Use flagging strategy optimized for pulsar observations ?
step_name
- type:
string- default:
aoflag- doc:
unique name for the step .
strategy
- type:
File?- doc:
The name of the strategy file to use. If no name is given, the default strategy is used which is fine for HBA. For LBA data the strategy LBAdefault should be used.
timewindow
- type:
int- default:
0- doc:
Number of time slots to be flagged jointly. The larger the time window, the better the flagging performs. 0 means that it will be deduced from the memory to use. Note that the time window can be extended with an overlap on the left and right side to minimize possible boundary effects .