How to use the d3-array.median function in d3-array

strOrUndefinedExtent = d3Array.extent(mixedObjectArray, accessorMixedObjectToStrOrUndefined);

// mean() ----------------------------------------------------------------------

numOrUndefined = d3Array.mean(numbersArray);
numOrUndefined = d3Array.mean(numericArray);
numOrUndefined = d3Array.mean(numbersOrUndefinedArray);

numOrUndefined = d3Array.mean(mixedObjectArray, accessorMixedObjectToNum);
numOrUndefined = d3Array.mean(mixedObjectOrUndefinedArray, accessorMixedObjectToNumOrUndefined);

// median() --------------------------------------------------------------------

numOrUndefined = d3Array.median(numbersArray);
numOrUndefined = d3Array.median(numericArray);
numOrUndefined = d3Array.median(numbersOrUndefinedArray);

numOrUndefined = d3Array.median(mixedObjectArray, accessorMixedObjectToNum);
numOrUndefined = d3Array.median(mixedObjectOrUndefinedArray, accessorMixedObjectToNumOrUndefined);

// quantile() ------------------------------------------------------------------

numOrUndefined = d3Array.quantile(numbersArray, 0.5);
numOrUndefined = d3Array.quantile(numericArray, 0.5);
numOrUndefined = d3Array.quantile(numbersOrUndefinedArray, 0.5);

numOrUndefined = d3Array.quantile(mixedObjectArray, 0.5, accessorMixedObjectToNum);
numOrUndefined = d3Array.quantile(mixedObjectOrUndefinedArray, 0.5, accessorMixedObjectToNumOrUndefined);

// sum() -----------------------------------------------------------------------

numOrUndefined = d3Array.sum(numbersArray);

// mean() ----------------------------------------------------------------------

numOrUndefined = d3Array.mean(numbersArray);
numOrUndefined = d3Array.mean(numericArray);
numOrUndefined = d3Array.mean(numbersOrUndefinedArray);

numOrUndefined = d3Array.mean(mixedObjectArray, accessorMixedObjectToNum);
numOrUndefined = d3Array.mean(mixedObjectOrUndefinedArray, accessorMixedObjectToNumOrUndefined);

// median() --------------------------------------------------------------------

numOrUndefined = d3Array.median(numbersArray);
numOrUndefined = d3Array.median(numericArray);
numOrUndefined = d3Array.median(numbersOrUndefinedArray);

numOrUndefined = d3Array.median(mixedObjectArray, accessorMixedObjectToNum);
numOrUndefined = d3Array.median(mixedObjectOrUndefinedArray, accessorMixedObjectToNumOrUndefined);

// quantile() ------------------------------------------------------------------

numOrUndefined = d3Array.quantile(numbersArray, 0.5);
numOrUndefined = d3Array.quantile(numericArray, 0.5);
numOrUndefined = d3Array.quantile(numbersOrUndefinedArray, 0.5);

numOrUndefined = d3Array.quantile(mixedObjectArray, 0.5, accessorMixedObjectToNum);
numOrUndefined = d3Array.quantile(mixedObjectOrUndefinedArray, 0.5, accessorMixedObjectToNumOrUndefined);

// sum() -----------------------------------------------------------------------

numOrUndefined = d3Array.sum(numbersArray);
numOrUndefined = d3Array.sum(numericArray);
numOrUndefined = d3Array.sum(numbersOrUndefinedArray);

dateMixedOrUndefined = d3Array.extent(mixedObjectArray, accessorMixedObjectToDate);
numOrUndefinedExtent = d3Array.extent(mixedObjectArray, accessorMixedObjectToNumOrUndefined);
strOrUndefinedExtent = d3Array.extent(mixedObjectArray, accessorMixedObjectToStrOrUndefined);

// mean() ----------------------------------------------------------------------

numOrUndefined = d3Array.mean(numbersArray);
numOrUndefined = d3Array.mean(numericArray);
numOrUndefined = d3Array.mean(numbersOrUndefinedArray);

numOrUndefined = d3Array.mean(mixedObjectArray, accessorMixedObjectToNum);
numOrUndefined = d3Array.mean(mixedObjectOrUndefinedArray, accessorMixedObjectToNumOrUndefined);

// median() --------------------------------------------------------------------

numOrUndefined = d3Array.median(numbersArray);
numOrUndefined = d3Array.median(numericArray);
numOrUndefined = d3Array.median(numbersOrUndefinedArray);

numOrUndefined = d3Array.median(mixedObjectArray, accessorMixedObjectToNum);
numOrUndefined = d3Array.median(mixedObjectOrUndefinedArray, accessorMixedObjectToNumOrUndefined);

// quantile() ------------------------------------------------------------------

numOrUndefined = d3Array.quantile(numbersArray, 0.5);
numOrUndefined = d3Array.quantile(numericArray, 0.5);
numOrUndefined = d3Array.quantile(numbersOrUndefinedArray, 0.5);

numOrUndefined = d3Array.quantile(mixedObjectArray, 0.5, accessorMixedObjectToNum);
numOrUndefined = d3Array.quantile(mixedObjectOrUndefinedArray, 0.5, accessorMixedObjectToNumOrUndefined);

// sum() -----------------------------------------------------------------------

data.forEach((d)=>{
        d.values = useLog?d.data.map((dd)=>{return Math.log10(+dd+1)}):d.data;
        d.values.sort(ascending);
        // median needed for sorting
        d.median = median(d.values);
    });
}

X2 += xk * xkw;
      }

      // linear regression fit
      const [a, b] = ols(X / W, Y / W, XY / W, X2 / W);
      yhat[i] = a + b * dx;
      residuals[i] = Math.abs(yv[i] - yhat[i]);

      updateInterval(xv, i + 1, interval);
    }

    if (iter === maxiters) {
      break;
    }

    const medianResidual = median(residuals);
    if (Math.abs(medianResidual) < epsilon) break;

    for (let i = 0, arg, w; i < n; ++i){
      arg = residuals[i] / (6 * medianResidual);
      // default to epsilon (rather than zero) for large deviations
      // keeping weights tiny but non-zero prevents singularites
      robustWeights[i] = (arg >= 1) ? epsilon : ((w = 1 - arg * arg) * w);
    }
  }

  return output(xv, yhat, ux, uy);
}

origNodes = {};

        graph.childNodes(way).forEach(function(node) {
            if (!origNodes[node.id]) origNodes[node.id] = node;
        });

        if (!way.isConvex(graph)) {
            graph = action.makeConvex(graph);
        }

        var nodes = _uniq(graph.childNodes(way)),
            keyNodes = nodes.filter(function(n) { return graph.parentWays(n).length !== 1; }),
            points = nodes.map(function(n) { return projection(n.loc); }),
            keyPoints = keyNodes.map(function(n) { return projection(n.loc); }),
            centroid = (points.length === 2) ? geoVecInterp(points[0], points[1], 0.5) : d3_polygonCentroid(points),
            radius = d3_median(points, function(p) { return geoVecLength(centroid, p); }),
            sign = d3_polygonArea(points) > 0 ? 1 : -1,
            ids;

        // we need atleast two key nodes for the algorithm to work
        if (!keyNodes.length) {
            keyNodes = [nodes[0]];
            keyPoints = [points[0]];
        }

        if (keyNodes.length === 1) {
            var index = nodes.indexOf(keyNodes[0]),
                oppositeIndex = Math.floor((index + nodes.length / 2) % nodes.length);

            keyNodes.push(nodes[oppositeIndex]);
            keyPoints.push(points[oppositeIndex]);
        }

.y((d) => this.scale.y(d[0])));

            // rerender the box plot
             // interquartile range
            const q1 = quantile(entry.values, 0.25);
            const q3 = quantile(entry.values, 0.75);
            const z = 0.1;
            g.select(".violin-ir")
                .transition(t)
                .attr("x", this.scale.z(-z))
                .attr("y", this.scale.y(q3))
                .attr("width", Math.abs(this.scale.z(-z)-this.scale.z(z)))
                .attr("height", Math.abs(this.scale.y(q3) - this.scale.y(q1)));

            // the median line
            const med = median(entry.values);
            g.select(".violin-median")
                .transition(t)
                .attr("x1", this.scale.z(-z))
                .attr("x2", this.scale.z(z))
                .attr("y1", this.scale.y(med))
                .attr("y2", this.scale.y(med))
            });

get median() {
    return this.map(median(this.sorted));
  }

const transcriptsWithMeanAndMedianExpresion = transcripts.map(transcript => {
    const expressionValues = Object.values(transcript.gtex_tissue_expression)
    return {
      ...transcript,
      gtex_tissue_expression: {
        ...transcript.gtex_tissue_expression,
        mean: mean(expressionValues),
        median: median(expressionValues),
      },
    }
  })