@playcanvas/splat-transform
Version:
Library and CLI tool for 3D Gaussian splat format conversion and transformation
53 lines (52 loc) • 1.53 kB
TypeScript
import { DataTable } from './data-table';
/**
* Statistical summary for a single column.
*/
type ColumnStats = {
/** Minimum value (excluding NaN/Inf). */
min: number;
/** Maximum value (excluding NaN/Inf). */
max: number;
/** Median value. */
median: number;
/** Arithmetic mean. */
mean: number;
/** Standard deviation. */
stdDev: number;
/** Count of NaN values. */
nanCount: number;
/** Count of Infinity values. */
infCount: number;
/** ASCII histogram of value distribution. */
histogram: string;
};
/**
* Statistical summary for an entire DataTable.
*/
type SummaryData = {
/** Summary format version. */
version: number;
/** Total number of rows. */
rowCount: number;
/** Per-column statistics keyed by column name. */
columns: Record<string, ColumnStats>;
};
/**
* Computes statistical summary for all columns in a DataTable.
*
* For each column, calculates min, max, median, mean, standard deviation,
* and counts of NaN/Infinity values. Useful for data validation and analysis.
*
* @param dataTable - The DataTable to analyze.
* @returns Summary data with per-column statistics.
*
* @example
* ```ts
* const summary = computeSummary(dataTable);
* console.log(summary.rowCount);
* console.log(summary.columns['x'].mean);
* console.log(summary.columns['opacity'].nanCount);
* ```
*/
declare const computeSummary: (dataTable: DataTable) => SummaryData;
export { computeSummary, type ColumnStats, type SummaryData };