lodash#meanBy TypeScript Examples

The following examples show how to use lodash#meanBy. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: helpers.ts    From aqualink-app with MIT License 6 votes vote down vote up 
calculateCardMetrics = (
  from: string,
  to: string,
  data?: ValueWithTimestamp[],
  keyPrefix?: string
): CardColumn["rows"] => {
  const filteredData = filterSofarData(from, to)(data);

  return [
    {
      key: `${keyPrefix}-max`,
      value: filteredData?.[0]
        ? maxBy(filteredData, "value")?.value
        : undefined,
    },
    {
      key: `${keyPrefix}-mean`,
      value: filteredData?.[0] ? meanBy(filteredData, "value") : undefined,
    },
    {
      key: `${keyPrefix}-min`,
      value: filteredData?.[0]
        ? minBy(filteredData, "value")?.value
        : undefined,
    },
  ];
}
Example #2
Source File: utils.ts    From aqualink-app with MIT License 6 votes vote down vote up 
calculateSondeDataMeanValues = (
  metrics: SondeMetricsKeys[],
  timeSeriesData?: TimeSeriesData
) =>
  mapValues(pick(timeSeriesData, map(metrics, camelCase)), (data) =>
    meanBy(data?.sonde?.data, "value")
  )
Example #3
Source File: map.ts    From aqualink-app with MIT License 6 votes vote down vote up 
getCollectionCenterAndBounds = (
  collection?: CollectionDetails
): [LatLng | undefined, LatLngBounds | undefined] => {
  if (!collection) {
    return [undefined, undefined];
  }

  const coordinates = collection.sites.map((item) =>
    getMiddlePoint(item.polygon)
  );

  const center = new LatLng(
    meanBy(coordinates, (item) => item[1]),
    meanBy(coordinates, (item) => item[0])
  );

  const bounds =
    coordinates.length > 1
      ? new LeafletPolygon(
          coordinates.map((item) => new LatLng(item[1], item[0]))
        ).getBounds()
      : undefined;

  return [center, bounds];
}
Example #4
Source File: siteUtils.ts    From aqualink-app with MIT License 6 votes vote down vote up 
findInitialSitePosition = (
  sites: Site[],
  initialSiteId?: string
): LatLng | null => {
  const initialSite =
    (initialSiteId && findSiteById(sites, initialSiteId)) ||
    maxBy(
      sites,
      (site) =>
        `${site.collectionData?.tempWeeklyAlert || 0},${longDHW(
          site.collectionData?.dhw || null
        )}`
    );

  // If the polygon type is a Point, return its coordinates
  if (initialSite?.polygon.type === "Point") {
    return new LatLng(
      initialSite.polygon.coordinates[1],
      initialSite.polygon.coordinates[0]
    );
  }

  // If the polygon type is a Polygon, return the coordinates of its centroid
  if (initialSite?.polygon.type === "Polygon") {
    const centroidLat = meanBy(
      initialSite.polygon.coordinates[0],
      (coords) => coords[1]
    );
    const centroidLng = meanBy(
      initialSite.polygon.coordinates[0],
      (coords) => coords[0]
    );

    return new LatLng(centroidLat, centroidLng);
  }

  return null;
}