PubChemR-classes {PubChemR}

PubChemInstanceList and PubChemInstance Classes

Description

The PubChemInstanceList object is a superclass returned by a request for compound(s) from the PubChem Database, such as the output from get_compounds, get_assays, etc.

The PubChemInstance object is another superclass for a PubChem instance, such as an assay, compound, substance, etc. These instances are nested within the results slot of a PubChemInstanceList object. Similar to PubChemInstanceList, the PubChemInstance also contains the same slots as described below. For more details, see instance.

Slots

results:

A list containing elements of each of the requested compounds, assays, substances, etc.

request_args:

A list containing the input arguments of a PubChem request.

success:

A logical value indicating whether the request was successfully completed (TRUE) or not (FALSE).

error:

A list detailing any errors encountered during the request, if applicable.

Note

There is no constructor function for the PubChemInstanceList or PubChemInstance classes. These objects are constructed within related functions and returned as the output of PubChem requests.

There are several subclasses defined under the PubChemInstanceList and PubChemInstance superclasses. The PubChem API returns request results in a list; however, each request may have a different list structure and/or items within the returned list. Therefore, we have defined subclasses to make generic functions compatible with any PubChem request, such as assays, instances, substances, etc. These subclasses may include PC_Compounds, PC_Substance, PC_Properties, PubChemInstance_AIDs, PubChemInstance_SIDs, PubChemInstance_CIDs, PubChemInstance_Synonyms, and PubChemInstance_Substances.

Most of the defined subclasses have similar slots as described above. However, some classes may have additional slots not described here. Please refer to the contents of the returned object for more details.