diff --git a/testing.php b/test-stockMarket.php
similarity index 53%
rename from testing.php
rename to test-stockMarket.php
index 8938183..8d8345e 100644
--- a/testing.php
+++ b/test-stockMarket.php
@@ -8,7 +8,6 @@ hammering Poloniex half to death.
 
 */
 
-
 ini_set('display_errors', 1);
 //include 'buffer.php';
 
@@ -20,12 +19,15 @@ spl_autoload_register(function ($class_name) {
 
 $chartData = [];
 
-$start = 0.01;// * rand()/getRandMax();
-$volatility = 0.002;
+$offset = 100 * (rand()/getRandMax())**4;
+$scale = 100 * (rand()/getRandMax())**4;
+$volatility = 0.5 * (rand()/getRandMax())**3;
 
-for ($n = 0, $current = $start; $n < 50; $n++) {
-  $current += $volatility * (rand()/getRandMax() - 0.5)**3;
+for ($n = 0, $current = $offset + 0.5 * $scale; $n < 96; $n++) {
+  $current -= $offset;
+  $current *= 1 + $volatility * (rand()/getRandMax() - 0.5);
+  $current += $offset;
   $chartData[$n] = $current;
 }
 
-print SVGChartBuilder::renderStockChart($chartData);
+print SVGChartBuilder::renderStockChart($chartData, 1000, "#708", "#777", false);
diff --git a/test-temperature.php b/test-temperature.php
new file mode 100644
index 0000000..723955f
--- /dev/null
+++ b/test-temperature.php
@@ -0,0 +1,34 @@
+<?php
+/*
+
+This file is intended to be a testing ground in case
+you want to adjust the parameters of these charts.
+That way you can make lots of changes without
+hammering Poloniex half to death.
+
+*/
+
+ini_set('display_errors', 1);
+//include 'buffer.php';
+
+Header('Content-type: image/svg+xml; charset=utf-8');
+
+spl_autoload_register(function ($class_name) {
+    include $class_name . '.php';
+});
+
+$chartData = [];
+
+$start = 100 * (rand()/getRandMax())**3;
+$volatility = rand()/getRandMax();
+$velocity = (rand()/getRandMax() - 0.5);
+$acceleration = 0.1 * (rand()/getRandMax())**2;
+
+for ($n = 0, $current = $start; $n < 24; $n++) {
+  $velocity *= 0.5;
+  $velocity += $acceleration * 2 * (rand()/getRandMax() - 0.5);
+  $current += $velocity;
+  $chartData[$n] = $current;
+}
+
+print SVGChartBuilder::renderStockChart($chartData, 1000, "#708", "#777", true);