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Allow small freqtol in concat for lines #244

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Allow small freqtol in concat for lines #244

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20 changes: 16 additions & 4 deletions phangsPipeline/casaVisRoutines.py
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Original file line number Diff line number Diff line change
Expand Up @@ -833,7 +833,9 @@ def batch_extract_line(
infile_list=[], outfile=None,
target_chan_kms=None, restfreq_ghz=None, line=None,
vsys_kms=None, vwidth_kms=None, vlow_kms=None, vhigh_kms=None,
method='regrid_then_rebin', exact=False, freqtol='',
method='regrid_then_rebin', exact=False,
freqtol='',
allow_freqtol_chanfrac=False, freqtol_chanfrac=0.2,
clear_pointing=True, require_full_line_coverage=False,
overwrite=False):
"""
Expand Down Expand Up @@ -885,6 +887,9 @@ def batch_extract_line(
for this_spw in schemes[this_infile].keys():
this_scheme = schemes[this_infile][this_spw]

# Record the channel width in freq for later
chan_width_ghz = this_scheme['chan_width_ghz']

# Specify output file and check for existence
this_outfile = this_infile+'.temp_spw'+str(this_spw).strip()

Expand Down Expand Up @@ -915,11 +920,18 @@ def batch_extract_line(
copy_pointing = False
#logger.debug('Warning! Failed to run au.clearPointingTable(%r)'%(this_outfile))

# Allow a small tolerance in the channel width
if allow_freqtol_chanfrac:
freqtol_val = freqtol_chanfrac * chan_width_ghz
freqtol = f"{freqtol_val}GHz"

# Concatenate and combine the output data sets

concat_ms(
infile_list=split_file_list, outfile=outfile, freqtol=freqtol,
overwrite=overwrite, copypointing=(not clear_pointing))
concat_ms(infile_list=split_file_list,
outfile=outfile,
freqtol=freqtol,
overwrite=overwrite,
copypointing=(not clear_pointing))

# Clean up, deleting intermediate files

Expand Down