LSST Applications 27.0.0,g0265f82a02+469cd937ee,g02d81e74bb+21ad69e7e1,g1470d8bcf6+cbe83ee85a,g2079a07aa2+e67c6346a6,g212a7c68fe+04a9158687,g2305ad1205+94392ce272,g295015adf3+81dd352a9d,g2bbee38e9b+469cd937ee,g337abbeb29+469cd937ee,g3939d97d7f+72a9f7b576,g487adcacf7+71499e7cba,g50ff169b8f+5929b3527e,g52b1c1532d+a6fc98d2e7,g591dd9f2cf+df404f777f,g5a732f18d5+be83d3ecdb,g64a986408d+21ad69e7e1,g858d7b2824+21ad69e7e1,g8a8a8dda67+a6fc98d2e7,g99cad8db69+f62e5b0af5,g9ddcbc5298+d4bad12328,ga1e77700b3+9c366c4306,ga8c6da7877+71e4819109,gb0e22166c9+25ba2f69a1,gb6a65358fc+469cd937ee,gbb8dafda3b+69d3c0e320,gc07e1c2157+a98bf949bb,gc120e1dc64+615ec43309,gc28159a63d+469cd937ee,gcf0d15dbbd+72a9f7b576,gdaeeff99f8+a38ce5ea23,ge6526c86ff+3a7c1ac5f1,ge79ae78c31+469cd937ee,gee10cc3b42+a6fc98d2e7,gf1cff7945b+21ad69e7e1,gfbcc870c63+9a11dc8c8f
LSST Data Management Base Package
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Public Member Functions | |
getExecutionOrder (cls) | |
calculate (self, diaObjects, diaSources, filterDiaSources, band, **kwargs) | |
Static Public Attributes | |
ConfigClass = LinearFitDiaPsfFluxConfig | |
list | inputCols = ["psfFluxMean"] |
list | outputCols = ["psfFluxStetsonJ"] |
str | plugType = "multi" |
bool | needsFilter = True |
Protected Member Functions | |
_stetson_J (self, fluxes, errors, mean=None) | |
_stetson_mean (self, values, errors, mean=None, alpha=2., beta=2., n_iter=20, tol=1e-6) | |
Compute the StetsonJ statistic on the DIA point source fluxes.
Definition at line 851 of file diaCalculationPlugins.py.
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Compute the single band stetsonJ statistic. Parameters ---------- fluxes : `numpy.ndarray` (N,) Calibrated lightcurve flux values. errors : `numpy.ndarray` (N,) Errors on the calibrated lightcurve fluxes. mean : `float` Starting mean from previous plugin. Returns ------- stetsonJ : `float` stetsonJ statistic for the input fluxes and errors. References ---------- .. [1] Stetson, P. B., "On the Automatic Determination of Light-Curve Parameters for Cepheid Variables", PASP, 108, 851S, 1996
Definition at line 909 of file diaCalculationPlugins.py.
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protected |
Compute the stetson mean of the fluxes which down-weights outliers. Weighted biased on an error weighted difference scaled by a constant (1/``a``) and raised to the power beta. Higher betas more harshly penalize outliers and ``a`` sets the number of sigma where a weighted difference of 1 occurs. Parameters ---------- values : `numpy.dnarray`, (N,) Input values to compute the mean of. errors : `numpy.ndarray`, (N,) Errors on the input values. mean : `float` Starting mean value or None. alpha : `float` Scalar down-weighting of the fractional difference. lower->more clipping. (Default value is 2.) beta : `float` Power law slope of the used to down-weight outliers. higher->more clipping. (Default value is 2.) n_iter : `int` Number of iterations of clipping. tol : `float` Fractional and absolute tolerance goal on the change in the mean before exiting early. (Default value is 1e-6) Returns ------- mean : `float` Weighted stetson mean result. References ---------- .. [1] Stetson, P. B., "On the Automatic Determination of Light-Curve Parameters for Cepheid Variables", PASP, 108, 851S, 1996
Definition at line 939 of file diaCalculationPlugins.py.
lsst.meas.base.diaCalculationPlugins.StetsonJDiaPsfFlux.calculate | ( | self, | |
diaObjects, | |||
diaSources, | |||
filterDiaSources, | |||
band, | |||
** | kwargs ) |
Compute the StetsonJ statistic on the DIA point source fluxes. Parameters ---------- diaObject : `dict` Summary object to store values in. diaSources : `pandas.DataFrame` DataFrame representing all diaSources associated with this diaObject. filterDiaSources : `pandas.DataFrame` DataFrame representing diaSources associated with this diaObject that are observed in the band pass ``band``. band : `str` Simple, string name of the filter for the flux being calculated. **kwargs Any additional keyword arguments that may be passed to the plugin.
Reimplemented from lsst.meas.base.diaCalculation.DiaObjectCalculationPlugin.
Definition at line 868 of file diaCalculationPlugins.py.
lsst.meas.base.diaCalculationPlugins.StetsonJDiaPsfFlux.getExecutionOrder | ( | cls | ) |
Used to set the relative order of plugin execution. The values returned by `getExecutionOrder` are compared across all plugins, and smaller numbers run first. Notes ----- `CatalogCalculationPlugin`\s must run with `BasePlugin.DEFAULT_CATALOGCALCULATION` or higher. All plugins must implement this method with an appropriate run level
Reimplemented from lsst.meas.base.catalogCalculation.CatalogCalculationPlugin.
Definition at line 865 of file diaCalculationPlugins.py.
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static |
Definition at line 855 of file diaCalculationPlugins.py.
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Definition at line 858 of file diaCalculationPlugins.py.
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Definition at line 862 of file diaCalculationPlugins.py.
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static |
Definition at line 860 of file diaCalculationPlugins.py.
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Definition at line 861 of file diaCalculationPlugins.py.