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NRAO Home > CASA > CASA Toolkit Reference Manual |
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imagepol.totpolint - Function
1.1.4 Total polarized intensity
Description
This function returns the total polarized intensity; . If your
image contains only Q and U, or only V, then just those components
contribute to the total polarized intensity.
You may optionally debias the polarized intensity. This requires the standard deviation of the thermal noise. You can either supply it if you know it, or it will be worked out for you with outliers from the mean clipped at the specified level.
Arguments
Inputs |
| ||
debias |
| Debias the total polarized intensity ?
| |
| allowed: | bool | |
| Default: | false |
|
clip |
| Clip level for auto-sigma determination
| |
| allowed: | double | |
| Default: | 10.0 |
|
sigma |
| Standard deviation of thermal noised. Default is auto
determined.
| |
| allowed: | double |
|
| Default: | -1 |
|
outfile |
| Output image file name. Default is unset.
| |
| allowed: | string |
|
| Default: |
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image
Example
"""
#
print "\t----\t totpolint Ex 1 \t----"
po.open(’stokes.image’)
tpi = po.totpolint()
tpi.statistics()
tpi.done()
#
"""
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Copyright © 2016 Associated Universities Inc., Washington, D.C.
This code is available under the terms of the GNU General Public Lincense
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