Add pivot hitrate console logs

src/interpolation/interpolationPivots.js

@@ -30,6 +30,7 @@ export default function(sampleSet, remainderSet, numPivots, distanceFn, endingIt
   let sets = takeSampleFrom(sampleSet, numPivots);
   let pivots = sets.sample;
   let nonPivotSamples = sets.remainder;
+  let correct = 0, wrong = 0, percentsOff = [];
 
   let pivotsBuckets = []; // [ For each Pivot:[For each bucket:[each point in bucket]] ]
   for (let i = 0; i < numPivots; i++) {
@@ -130,6 +131,45 @@ export default function(sampleSet, remainderSet, numPivots, distanceFn, endingIt
       if (sampleSubsetDistanceCache[k] === undefined)
         sampleSubsetDistanceCache[k] = distanceFn(node, sampleSubset[k]);
     }
+
+    let nearestSample, nearestMinDist, sample, dist;
+    for (let j = sampleSet.length-1; j>=0; j--) {
+      sample = sampleSet[j];
+      dist = distanceFn(node, sample);
+      if (nearestSample === undefined || dist < nearestMinDist) {
+        nearestMinDist = dist;
+        nearestSample = sample;
+      }
+    }
+
+    if(minDist-nearestMinDist == 0) correct++;
+    else {
+      wrong++;
+      if(nearestMinDist!=0)percentsOff.push(minDist/nearestMinDist)
+    }
+
     placeNearToNearestNeighbour(node, nearSample, minDist, sampleSubset, sampleSubsetDistanceCache, endingIts);
   }
+  console.log("Correct", correct);
+  console.log("Wrong", wrong);
+  console.log("Correct percent", 100*correct/(correct+wrong));
+  StandardDeviation(percentsOff)
+}
+
+function StandardDeviation(numbersArr) {
+    //--CALCULATE AVAREGE--
+    var total = 0;
+    for(var key in numbersArr)
+       total += numbersArr[key];
+    var meanVal = total / numbersArr.length;
+    console.log("Average percent off", meanVal);
+    //--CALCULATE AVAREGE--
+
+    //--CALCULATE STANDARD DEVIATION--
+    var SDprep = 0;
+    for(var key in numbersArr)
+       SDprep += Math.pow((parseFloat(numbersArr[key]) - meanVal),2);
+    var SDresult = Math.sqrt(SDprep/numbersArr.length);
+    //--CALCULATE STANDARD DEVIATION--
+    console.log("SD percent off", SDresult);
 }