Merge pull request #221 from flatironinstitute/tests/rhat-ess

Add tests for ess and R-hat based on Stan's

gui/test/app/util/stan_stats/data.ts

@@ -0,0 +1,17 @@
+import stanCSV1 from "./data/stan1.csv?raw";
+import stanCSV2 from "./data/stan2.csv?raw";
+
+const parseCSV = (csv: string): number[][] => {
+  let lines = csv.split("\n");
+  lines = lines.filter((l) => l.trim() && !l.trimStart().startsWith("#"));
+  lines.shift(); // remove header
+  const data = lines.map((line) => {
+    return line.split(",").map((value) => parseFloat(value));
+  });
+  // transpose
+  const dataT = data[0].map((_, i) => data.map((row) => row[i]));
+  return dataT;
+};
+
+export const data1 = parseCSV(stanCSV1);
+export const data2 = parseCSV(stanCSV2);