Class
NumCosmoMathCatalog
Description [src]
class NumCosmoMath.Catalog : GObject.Object
{
/* No available fields */
}Lightweight named-column catalog.
A generic, lightweight container storing a NcmMatrix of double values together
with a name for each column. It provides column-name based access to the data and
is meant to be used as a derivable base class for catalog-like objects (for
example galaxy and halo catalogs), as well as on its own as a simple table that
converts cheaply to/from external table formats.
Each column also carries a logical type (NcmCatalogColType): all values are
physically stored as doubles, but a column may be tagged as integer or boolean
so the intended dtype can be restored when converting to/from external table
formats (integers are exact below 2^53, booleans are stored as 0.0/1.0). String
and other heterogeneous columns are intentionally not handled here and are left
to specialized subclasses or future additive extensions.
This is a pure data container with no cosmological content. It is unrelated to
NcmMSetCatalog, which stores Monte Carlo chains.
Constructors
ncm_catalog_new
Creates a new NcmCatalog with nrows rows and the columns named by
col_names, with all values initialized to zero.
ncm_catalog_new_full
Creates a new NcmCatalog with nrows rows and the columns named by
col_names, with all values initialized to zero. Each column carries the
logical type given in col_types (which must have one entry per column).
Functions
ncm_catalog_clear
If catalog is different from NULL, decreases its reference count and sets
catalog to NULL.
Instance methods
ncm_catalog_set_bool
Sets the boolean value at row i and column col, stored as 0.0/1.0 in the
double backing matrix.
ncm_catalog_set_int
Sets the integer value at row i and column col. The value is stored in the
double backing matrix (lossless for magnitudes below 2^53).
Properties
NumCosmoMath.Catalog:col-types
The per-column logical types (NcmCatalogColType values), as an array of
unsigned integers parallel to NcmCatalog:columns. When unset every column
defaults to NCM_CATALOG_COL_TYPE_DOUBLE.
Signals
Signals inherited from GObject (1)
GObject::notify
The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.