GetPQDistanceTableSdc
API Definition
int GetPQDistanceTableSdc(const PQParams *params, float *pqDistanceTable, size_t pqDistanceTable_size);
Function
Calculates the PQ SDC distance table, that is, calculates the distance between the cluster centroids in each subspace.
Parameters
Parameter |
Data Type |
Description |
Value Range |
|---|---|---|---|
pqDistanceTable |
float* |
SDC distance table. It can also be used as an output value. |
The value cannot be null. The value is specified by pqDistanceTable_size, the length of the SDC distance table array. |
pqDistanceTable_size |
size_t |
Length of the SDC distance table array. |
The value is specified by pqM × pqKsub × pqKsub, where pqM and pqKsub are fields in the PQParams structure, respectively indicating the number of subspaces and the number of cluster centroids in these subspaces. |
params |
PQParams |
For details, see the description of PQParams in Structure Description. |
|
Return Value
Data Type |
Description |
|---|---|
int |
The value 0 is returned when the system runs properly, and the value -1 is returned when the system exits abnormally. |