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33 lines
951 B
33 lines
951 B
const Matrices = {
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// A x A array of nulls; null-null relationships are omitted in chord diagram.
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createEmptyMatrix: (len) => {
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const empty = Array.apply(null, Array(len));
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return empty.map(() => empty.map(() => null));
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},
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// Scalar data points (sum of goals scored).
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buildMatrix: (json, eventKey) => {
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const teams = json.tourneys[eventKey].teams;
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const matrix = Matrices.createEmptyMatrix(teams.length);
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json.tourneys[eventKey].games.forEach(g => {
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const i1 = teams.findIndex(v => v.tId === g.t1);
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const i2 = teams.findIndex(v => v.tId === g.t2);
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matrix[i1][i2] = g.s1 + g.se1 + g.sp1;
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matrix[i2][i1] = g.s2 + g.se2 + g.sp2;
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}, []);
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return matrix;
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},
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swapIndices: (arr, i, j) => {
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const tmp = arr[i];
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arr[i] = arr[j];
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arr[j] = tmp;
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return arr;
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},
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};
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export default Matrices;
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