data loading done

src/propeller/problems/stocks/stock_regression.cljc

@@ -1,24 +1,22 @@
 (ns propeller.problems.stocks.stock-regression
   (:require
    [clojure.core :refer [read-string]]
+   [propeller.tools.math :as math]
    [propeller.genome :as genome]
    [propeller.gp :as gp]
    [propeller.push.interpreter :as interpreter]
    [propeller.push.state :as state]
-   [propeller.tools.math :as math]))
-
-(defn- target-function
-  "Target function: f(x) = x^3 + 2*x^2 + x + 3"
-  [x]
-  (+ (* x x x) (* 2 x x) x 3))
+   [propeller.tools.loading :as loading]))
 
 (def train-and-test-data
   "Training data: Inputs and outputs with -10 <= x < 11
   Test data: Inputs and outputs of -20 <= x < -10 and 11 <= x < 21"
-  (let [train-inputs (range -10 11)
-        test-inputs (concat (range -20 -10) (range 11 21))]
-    {:train (map (fn [x] {:input1 (vector x) :output1 (vector (target-function x))}) train-inputs)
-     :test (map (fn [x] {:input1 (vector x) :output1 (vector (target-function x))}) test-inputs)}))
+  (let [data (loading/basic-load-data-csv "src/propeller/problems/stocks/data/GLD.csv")
+        train-len (math/round (* (count data) 0.8))
+        test-len (- (count data) train-len)
+        ]
+    {:train (map (fn [x] {:input1 (first (map read-string x)) :output1 (fnext (map read-string x))}) (doall (take train-len data)))
+     :test (map (fn [x] {:input1 (first (map read-string x)) :output1 (fnext (map read-string x))}) (doall (take-last test-len data)))}))
 
 (def instructions
   "stack-specific instructions, input instructions, close, and constants"
@@ -38,6 +36,7 @@
         :hold
         ))
 
+(comment 
 (defn error-function
   "Finds the behaviors and errors of an individual. The error is the absolute
   deviation between the target output value and the program's selected behavior,
@@ -66,10 +65,11 @@
        :errors errors
        :total-error #?(:clj  (apply +' errors)
                        :cljs (apply + errors))))))
+)
 
 (def integer-argmap
   {:instructions             instructions
-   :error-function           error-function
+   ;:error-function           error-function
    :training-data            (:train train-and-test-data)
    :testing-data             (:test train-and-test-data)
    :max-generations          300

src/propeller/tools/loading.cljc

@@ -5,7 +5,7 @@
    [clojure.java.io :as io]
    [clojure.data.csv :as csv]))
 
-(defn load-data-csv
+(defn basic-load-data-csv
   [path]
   (with-open [reader (io/reader path)]
     (->> (csv/read-csv reader)