360 lines
12 KiB
TypeScript
360 lines
12 KiB
TypeScript
import { AxisLeft, AxisBottom } from "@visx/axis";
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import { GridRows, GridColumns } from "@visx/grid";
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import { Group } from "@visx/group";
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import { Stats } from "@visx/mock-data/lib/generators/genStats";
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import { Point } from "@visx/point";
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import { scaleBand, scaleLinear } from "@visx/scale";
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import { Line } from "@visx/shape";
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import { BoxPlot as VisxBoxPlot } from "@visx/stats";
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import { withTooltip } from "@visx/tooltip";
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import { WithTooltipProvidedProps } from "@visx/tooltip/lib/enhancers/withTooltip";
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import React from "react";
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import { Color } from "utils/Color";
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import { TooltipWrapper } from "./TooltipWrapper";
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import styles from "./Boxplot.module.css";
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const DEFAULT_LABEL_SIZE = 16;
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const TICK_LABEL_FONT_WEIGHT = 800;
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interface BoxPlotData {
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category: string;
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min: number;
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median: number;
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max: number;
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firstQuartile: number;
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thirdQuartile: number;
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outliers?: number[];
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}
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type TooltipData = Omit<BoxPlotData, "outliers">;
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export type StatsPlotProps = {
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data: BoxPlotData[];
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/** Width of the entire graph, in pixels, greater than 10. */
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width: number;
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/** Height of the entire graph, in pixels. */
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height: number;
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/** Distance between the edge of the graph and the area where the bars are drawn, in pixels. */
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margin: {
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top: number;
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left: number;
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};
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/** Width of the lines in the graph, in px. */
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strokeWidth?: number;
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/** Length of the dashes and the gaps in the graph, in px. */
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strokeDashArray?: string;
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/** Number of ticks for the value (y-)axis */
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numTicksLeftAxis?: number;
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/** Distance between the boxplot and the top of the grid, in px. */
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plotTopOffset?: number;
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/** Distance between the left axis labels and the start of the lines of the graph, in px. */
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valueAxisLeftOffset?: number;
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/** Distance between the top and the first label of the y axis, in px. */
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valueAxisLabelTopOffset?: number;
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/** Distance between the left and the labels of the y axis, in px. */
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valueAxisLabelLeftOffset?: number;
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/** Distance between the left and the start of the first label of the x axis, in px. */
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categoryAxisLabelLeftOffset?: number;
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/** Distance between the top and the column lines of the grid of the graph, in px. */
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gridColumnTopOffset?: number;
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/** Distance between the top of the point in the boxplot and the start of the tooltip box, in px. */
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toolTipTopOffset?: number;
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/** Distance between the left of the point in the boxplot and the start of the tooltip box, in px. */
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toolTipLeftOffset?: number;
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/** Font size of the category (x-)axis labels */
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categoryAxisLabelSize?: number;
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/** Font size of the value (y-)axis labels */
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valueAxisLabelSize?: number;
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/** Font size of the text in the tool tip box */
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toolTipFontSize?: number;
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/** Factor multiplied with the compressed width to determine the box width, in px. */
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boxPlotWidthFactor?: number;
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/** Factor multiplied with the compressed width to determine the distance between boxes, in px. */
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boxPlotLeftOffset?: number;
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};
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export const BoxPlot = withTooltip<StatsPlotProps, TooltipData>(
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({
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width,
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height,
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data,
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margin,
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tooltipOpen,
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tooltipLeft,
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tooltipTop,
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tooltipData,
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showTooltip,
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hideTooltip,
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strokeWidth = 2.5,
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strokeDashArray = "10,4",
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numTicksLeftAxis = 6,
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plotTopOffset = 10,
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valueAxisLeftOffset = 40,
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gridColumnTopOffset = -20,
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valueAxisLabelTopOffset = 5,
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valueAxisLabelLeftOffset = 10,
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categoryAxisLabelLeftOffset = 30,
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toolTipTopOffset = 20,
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toolTipLeftOffset = 5,
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categoryAxisLabelSize = DEFAULT_LABEL_SIZE,
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valueAxisLabelSize = DEFAULT_LABEL_SIZE,
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boxPlotWidthFactor = 0.4,
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boxPlotLeftOffset = 0.3,
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}: StatsPlotProps & WithTooltipProvidedProps<TooltipData>) => {
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// bounds
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const xMax = width;
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const yMax = height - 120;
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// formatting data
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const plotData: Stats[] = data.map((d) => {
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return {
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boxPlot: {
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...d,
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x: d.category,
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outliers: [],
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},
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binData: [],
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};
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});
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// accessors
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const getX = (d: Stats) => d.boxPlot.x;
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const getMin = (d: Stats) => d.boxPlot.min;
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const getMax = (d: Stats) => d.boxPlot.max;
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const getMedian = (d: Stats) => d.boxPlot.median;
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const getFirstQuartile = (d: Stats) => d.boxPlot.firstQuartile;
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const getThirdQuartile = (d: Stats) => d.boxPlot.thirdQuartile;
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// scales
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const xScale = scaleBand<string>({
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range: [18, xMax - 80], // scaling is needed due to the left offset
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round: true,
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domain: plotData.map(getX),
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padding: 0.3,
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});
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const values = plotData.reduce((allValues, { boxPlot }) => {
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allValues.push(boxPlot.min, boxPlot.max);
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return allValues;
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}, [] as number[]);
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const minYValue = Math.min(...values);
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const maxYValue = Math.max(...values);
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const yScale = scaleLinear<number>({
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range: [yMax, 0],
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round: true,
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domain: [minYValue, maxYValue],
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});
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const constrainedWidth = Math.min(200, xScale.bandwidth());
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return width < 10 ? null : (
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<div>
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<svg width={width} height={height}>
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<Group top={margin.top} left={margin.left}>
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<GridRows
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top={plotTopOffset}
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left={valueAxisLeftOffset}
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scale={yScale}
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width={xMax}
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numTicks={numTicksLeftAxis}
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stroke={Color.tertiaryBackground}
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strokeWidth={strokeWidth}
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strokeDasharray={strokeDashArray}
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/>
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<GridColumns
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scale={xScale}
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height={yMax + plotTopOffset - gridColumnTopOffset}
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top={gridColumnTopOffset}
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left={valueAxisLeftOffset}
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stroke={Color.tertiaryBackground}
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strokeWidth={strokeWidth}
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strokeDasharray={strokeDashArray}
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/>
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<Line
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fill={Color.tertiaryBackground}
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to={new Point({ x: valueAxisLeftOffset, y: gridColumnTopOffset })}
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from={
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new Point({ x: valueAxisLeftOffset, y: yMax + plotTopOffset })
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}
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stroke={Color.tertiaryBackground}
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strokeWidth={strokeWidth}
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strokeDasharray={strokeDashArray}
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/>
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<Line
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fill={Color.tertiaryBackground}
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to={
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new Point({
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x: xMax - margin.left - strokeWidth,
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y: gridColumnTopOffset,
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})
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}
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from={
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new Point({
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x: xMax - margin.left - strokeWidth,
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y: yMax + plotTopOffset,
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})
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}
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stroke={Color.tertiaryBackground}
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strokeWidth={strokeWidth}
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strokeDasharray={strokeDashArray}
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/>
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<AxisBottom
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top={yMax + plotTopOffset - gridColumnTopOffset}
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left={categoryAxisLabelLeftOffset}
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scale={xScale}
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hideAxisLine
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hideTicks
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labelProps={{
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fontSize: `${categoryAxisLabelSize / 16}rem`,
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}}
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tickLabelProps={() => {
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return {
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fill: Color.label,
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fontWeight: TICK_LABEL_FONT_WEIGHT,
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};
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}}
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/>
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<AxisLeft
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scale={yScale}
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top={plotTopOffset + valueAxisLabelTopOffset}
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left={valueAxisLabelLeftOffset}
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numTicks={numTicksLeftAxis}
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hideAxisLine
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labelProps={{
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fontSize: `${valueAxisLabelSize / 16}rem`,
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}}
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tickLabelProps={() => {
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return {
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fill: Color.label,
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fontWeight: TICK_LABEL_FONT_WEIGHT,
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};
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}}
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/>
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<Group top={plotTopOffset}>
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{plotData.map((d: Stats, i) => (
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<Group key={i}>
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<VisxBoxPlot
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className={styles.boxplot}
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min={getMin(d)}
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max={getMax(d)}
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left={
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xScale(getX(d))! +
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boxPlotLeftOffset * constrainedWidth +
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valueAxisLeftOffset
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}
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firstQuartile={getFirstQuartile(d)}
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thirdQuartile={getThirdQuartile(d)}
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median={getMedian(d)}
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boxWidth={constrainedWidth * boxPlotWidthFactor}
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rx={0}
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ry={0}
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stroke={Color.label}
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strokeWidth={strokeWidth}
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valueScale={yScale}
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minProps={{
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onMouseOver: () => {
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showTooltip({
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tooltipTop:
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(yScale(getMin(d)) ?? 0) + toolTipTopOffset,
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tooltipLeft:
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xScale(getX(d))! +
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constrainedWidth +
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toolTipLeftOffset,
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tooltipData: {
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...d.boxPlot,
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category: getX(d),
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},
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});
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},
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onMouseLeave: () => {
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hideTooltip();
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},
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}}
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maxProps={{
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onMouseOver: () => {
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showTooltip({
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tooltipTop:
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(yScale(getMax(d)) ?? 0) + toolTipTopOffset,
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tooltipLeft:
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xScale(getX(d))! +
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constrainedWidth +
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toolTipLeftOffset,
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tooltipData: {
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...d.boxPlot,
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category: getX(d),
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},
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});
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},
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onMouseLeave: () => {
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hideTooltip();
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},
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}}
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boxProps={{
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onMouseOver: () => {
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showTooltip({
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tooltipTop:
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(yScale(getMedian(d)) ?? 0) + toolTipTopOffset,
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tooltipLeft:
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xScale(getX(d))! +
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constrainedWidth +
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toolTipLeftOffset,
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tooltipData: {
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...d.boxPlot,
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category: getX(d),
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},
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});
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},
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strokeWidth: 0,
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onMouseLeave: () => {
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hideTooltip();
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},
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}}
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medianProps={{
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style: {
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stroke: Color.label,
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},
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onMouseOver: () => {
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showTooltip({
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tooltipTop:
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(yScale(getMedian(d)) ?? 0) + toolTipTopOffset,
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tooltipLeft:
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xScale(getX(d))! +
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constrainedWidth +
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toolTipLeftOffset,
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tooltipData: {
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...d.boxPlot,
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category: getX(d),
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},
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});
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},
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onMouseLeave: () => {
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hideTooltip();
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},
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}}
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/>
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</Group>
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))}
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</Group>
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</Group>
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</svg>
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{tooltipOpen && tooltipData && (
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<TooltipWrapper
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left={tooltipLeft}
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top={tooltipTop}
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header={tooltipData.category}
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>
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<p>max: {tooltipData.max}</p>
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<p>third quartile: {tooltipData.thirdQuartile}</p>
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<p>median: {tooltipData.median}</p>
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<p>first quartile: {tooltipData.firstQuartile}</p>
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<p>min: {tooltipData.min}</p>
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</TooltipWrapper>
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)}
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</div>
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);
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}
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);
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