diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 0b97fd3..a17d642 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -1,7 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ChangeListManager">
-    <list default="true" id="0aedafd8-e57e-462a-beda-65af0b91f3df" name="Default Changelist" comment="" />
+    <list default="true" id="0aedafd8-e57e-462a-beda-65af0b91f3df" name="Default Changelist" comment="">
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/train.py" beforeDir="false" afterPath="$PROJECT_DIR$/train.py" afterDir="false" />
+    </list>
     <ignored path="$PROJECT_DIR$/out/" />
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
     <option name="SHOW_DIALOG" value="false" />
@@ -48,7 +51,7 @@
           <entry key="csv" value="9" />
           <entry key="gitignore" value="12" />
           <entry key="md" value="104" />
-          <entry key="py" value="2919" />
+          <entry key="py" value="2940" />
           <entry key="sh" value="5" />
         </counts>
       </usages-collector>
@@ -58,7 +61,7 @@
           <entry key="Dockerfile" value="81" />
           <entry key="Markdown" value="104" />
           <entry key="PLAIN_TEXT" value="21" />
-          <entry key="Python" value="2919" />
+          <entry key="Python" value="2940" />
         </counts>
       </usages-collector>
     </session>
@@ -102,8 +105,8 @@
       <file pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/train.py">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="235">
-              <caret line="98" column="14" selection-start-line="98" selection-start-column="10" selection-end-line="98" selection-end-column="14" />
+            <state relative-caret-position="91">
+              <caret line="66" column="18" selection-start-line="66" selection-start-column="14" selection-end-line="66" selection-end-column="18" />
               <folding>
                 <element signature="e#0#28#0" expanded="true" />
               </folding>
@@ -241,7 +244,7 @@
   <component name="PropertiesComponent">
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="aspect.path.notification.shown" value="true" />
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1588403856046" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1588404661725" />
     <property name="go.gopath.indexing.explicitly.defined" value="true" />
     <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
     <property name="nodejs_npm_path_reset_for_default_project" value="true" />
@@ -282,12 +285,12 @@
       <option name="presentableId" value="Default" />
       <updated>1588152877746</updated>
       <workItem from="1588152880522" duration="16973000" />
-      <workItem from="1588319878551" duration="29929000" />
+      <workItem from="1588319878551" duration="30177000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="46902000" />
+    <option name="totallyTimeSpent" value="47150000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="0" width="1280" height="800" extended-state="0" />
@@ -434,8 +437,8 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/train.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="235">
-          <caret line="98" column="14" selection-start-line="98" selection-start-column="10" selection-end-line="98" selection-end-column="14" />
+        <state relative-caret-position="91">
+          <caret line="66" column="18" selection-start-line="66" selection-start-column="14" selection-end-line="66" selection-end-column="18" />
           <folding>
             <element signature="e#0#28#0" expanded="true" />
           </folding>
diff --git a/train.py b/train.py
index 0e25912..ea3a88f 100644
--- a/train.py
+++ b/train.py
@@ -86,7 +86,7 @@ def forecast_lstm(model, batch_size, X):
 def experiment(repeats, series, seed):
 	# transform data to be stationary
 	raw_values = series.values
-	diff_values = difference(raw_values, 3)
+	diff_values = difference(raw_values, 1)
 	# transform data to be supervised learning
 	lag2 = 4
 	supervised = timeseries_to_supervised(diff_values, lag2)