print when leaving ISF unchanged

lib/autotune/index.js

@@ -428,7 +428,6 @@ function tuneAllTheThings (inputs) {
     var BGIs = [];
     var avgDeltas = [];
     var ratios = [];
-    var count = 0;
     for (var i=0; i < ISFGlucose.length; ++i) {
         deviation = parseFloat(ISFGlucose[i].deviation);
         deviations.push(deviation);
@@ -439,7 +438,6 @@ function tuneAllTheThings (inputs) {
         var ratio = 1 + deviation / BGI;
         //console.error("Deviation:",deviation,"BGI:",BGI,"avgDelta:",avgDelta,"ratio:",ratio);
         ratios.push(ratio);
-        count++;
     }
     avgDeltas.sort(function(a, b){return a-b});
     BGIs.sort(function(a, b){return a-b});
@@ -448,14 +446,16 @@ function tuneAllTheThings (inputs) {
     var p50deviation = percentile(deviations, 0.50);
     var p50BGI = percentile(BGIs, 0.50);
     var p50ratios = Math.round( percentile(ratios, 0.50) * 1000)/1000;
-    if (count < 10) {
+    var fullNewISF = ISF;
+    if (ISFGlucose.length < 10) {
         // leave ISF unchanged if fewer than 5 ISF data points
-        var fullNewISF = ISF;
+        console.error ("Only found",ISFGlucose.length,"ISF data points, leaving ISF unchanged at",ISF);
     } else {
         // calculate what adjustments to ISF would have been necessary to bring median deviation to zero
         fullNewISF = ISF * p50ratios;
     }
     fullNewISF = Math.round( fullNewISF * 1000 ) / 1000;
+    //console.error("p50ratios:",p50ratios,"fullNewISF:",fullNewISF,ratios[Math.floor(ratios.length/2)]);
     // adjust the target ISF to be a weighted average of fullNewISF and pumpISF
     var adjustmentFraction;