DB’s modeling code Tools¶

Input/Output¶

moana.dbc.tools.custom_floor(a, precision=0)[source]¶

Truncate a number at a given digit.

Parameters:

a (float) – number to be truncated.
precision (int) – precision.

Returns:

Truncated float of a.

Return type:

float

moana.dbc.tools.from_parfile(filename, path='./')[source]¶

Load instrument properties from a ‘par’ file.

Parameters:

filename (str) – name of the parfile.
path (str) – path to the parfile

Returns:

A moana.dbc.Dataset object.

Return type:

Dataset

moana.dbc.tools.mass_fration_to_mass_ratio(x)[source]¶

Compute the planet mass ratio from planet mass ratio.

Parameters:: x (float) – mass fraction. For a two-body problem with masses M1 and M2, the mass fraction is x = M2 / (M1 + M2), with M2 < M1.
Returns:: The corresponding mass ratio, i.e., M2/M1, with M2 < M1.
Return type:: float

Dataset¶

class moana.dbc.instruments.Dataset(dataset, path='.')[source]¶

Bases: object

Load and store information about instruments, telescopes and filters.

Parameters:

dataset (str) – name of the dataset.
path (str) – path to the dataset.

Examples:

If dataset=’OB151670’, then the class loads the file ‘parOB151670’, and the instruments properties are stored in the attribute DBDataset.instruments. The observations files are, for example, OB151670.ogle.

>>> from moana.dataset import Dataset
>>> parfile = Dataset('OB151670')

Output files¶

class moana.dbc.io.Output(run, path='./', **kwargs)[source]¶

Bases: object

Class that load a model, the corresponding data and residuals.

Parameters:

run (str) – name of the run for which the files should be loaded.
path (str) – path to the output files.

idx_data¶: line number (int) of the first data in resid file.

param¶: pandas.Series with model parameters, including flux.

resid¶: pandas.DataFrame of the data.

compare(model)[source]¶

load(resid=True, model=True)[source]¶: Method that load the output files.