photoz_stack

class txpipe.photoz_stack.TXLensTrueNumberDensity(*args: Any, **kwargs: Any)

Bases: ceci.

get_metadata()

Load the z column and the number of bins

Returns

• z (array) – Redshift column for photo-z PDFs

• nbin – Number of different redshift bins to split into.

class txpipe.photoz_stack.TXPhotozLensStack(*args: Any, **kwargs: Any)

Bases: ceci.

Naively stack photo-z PDFs in bins according to previous selections.

This parent class does only the source bins.

get_metadata()

Load the z column and the number of bins

Returns

• z (array) – Redshift column for photo-z PDFs

• nbin – Number of different redshift bins to split into.

run()

Run the analysis for this stage.

• Get metadata and allocate space for output

• Set up iterators to loop through tomography and PDF input files

• Accumulate the PDFs for each object in each bin

• Divide by the counts to get the stacked PDF

class txpipe.photoz_stack.TXPhotozPlots(*args: Any, **kwargs: Any)

Bases: ceci.

Make n(z) plots

class txpipe.photoz_stack.TXPhotozSourceStack(*args: Any, **kwargs: Any)

Bases: ceci.

Naively stack photo-z PDFs in bins according to previous selections.

This parent class does only the source bins.

get_metadata()

Load the z column and the number of bins

Returns

• z (array) – Redshift column for photo-z PDFs

• nbin – Number of different redshift bins to split into.

run()

Run the analysis for this stage.

• Get metadata and allocate space for output

• Set up iterators to loop through tomography and PDF input files

• Accumulate the PDFs for each object in each bin

• Divide by the counts to get the stacked PDF

class txpipe.photoz_stack.TXSourceTrueNumberDensity(*args: Any, **kwargs: Any)

Bases: ceci.

Fake an n(z) by histogramming the true redshift values for each object. Uses the same method as its parent but loads the data differently and uses the truth redshift as a delta function PDF

get_metadata()

Load the z column and the number of bins

Returns

• z (array) – Redshift column for photo-z PDFs

• nbin – Number of different redshift bins to split into.