Merge pull request brownplt#1757 from ds26gte/js-mulreg

minor improvements to multipe-regression() part II

src/arr/trove/statistics.arr

@@ -244,7 +244,7 @@ fun matrix-based-multiple-regression(x_s_s :: List<List<Number>>, y_s :: List<Nu
   B_pred_fn
 end
 
-fun multiple-regression(x_s_s :: List<List<Number>>, y_s :: List<Number>) -> (Any -> Number):
+fun multiple-regression(x_s_s :: List<List<Number>>, y_s :: List<Number>) -> (List<Number> -> Number):
   doc: "returns a predictor function given a list of list of independent inputs and the correspoinding list of outputs"
   MR.multiple-regression(x_s_s, y_s)
 end

src/js/trove/multiple-regression.js

@@ -174,9 +174,7 @@
           runtime.checkNumber(x);
           result += runtime.num_to_fixnum(x) * B[i+1][0]
         }
-        console.log('predr result before return', result);
         return runtime.num_to_roughnum(result);
-        // return runtime.makeNumber(result);
       }
       return runtime.makeFunction(Bfunc, "predictor");
     }