diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 1e04210..8f5cea4 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -1,7 +1,11 @@
 <?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="$PROJECT_DIR$/compare.sh" beforeDir="false" afterPath="$PROJECT_DIR$/compare.sh" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/rf.py" beforeDir="false" afterPath="$PROJECT_DIR$/rf.py" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/serve.py" beforeDir="false" afterPath="$PROJECT_DIR$/serve.py" afterDir="false" />
+    </list>
     <ignored path="$PROJECT_DIR$/out/" />
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
     <option name="SHOW_DIALOG" value="false" />
@@ -22,26 +26,26 @@
       </usages-collector>
       <usages-collector id="statistics.file.extensions.open">
         <counts>
-          <entry key="Dockerfile" value="2" />
-          <entry key="csv" value="5" />
+          <entry key="Dockerfile" value="3" />
+          <entry key="csv" value="8" />
           <entry key="gitignore" value="1" />
           <entry key="iml" value="1" />
-          <entry key="md" value="2" />
+          <entry key="md" value="3" />
           <entry key="png" value="7" />
-          <entry key="py" value="13" />
-          <entry key="sh" value="4" />
-          <entry key="txt" value="2" />
+          <entry key="py" value="14" />
+          <entry key="sh" value="6" />
+          <entry key="txt" value="3" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.open">
         <counts>
-          <entry key="Bash" value="4" />
-          <entry key="Dockerfile" value="2" />
+          <entry key="Bash" value="6" />
+          <entry key="Dockerfile" value="3" />
           <entry key="IDEA_MODULE" value="1" />
           <entry key="Image" value="7" />
-          <entry key="Markdown" value="2" />
-          <entry key="PLAIN_TEXT" value="8" />
-          <entry key="Python" value="13" />
+          <entry key="Markdown" value="3" />
+          <entry key="PLAIN_TEXT" value="12" />
+          <entry key="Python" value="14" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.extensions.edit">
@@ -51,17 +55,17 @@
           <entry key="dummy" value="5" />
           <entry key="gitignore" value="12" />
           <entry key="md" value="234" />
-          <entry key="py" value="6069" />
-          <entry key="sh" value="339" />
+          <entry key="py" value="6106" />
+          <entry key="sh" value="546" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.edit">
         <counts>
-          <entry key="Bash" value="339" />
+          <entry key="Bash" value="546" />
           <entry key="Dockerfile" value="81" />
           <entry key="Markdown" value="234" />
           <entry key="PLAIN_TEXT" value="26" />
-          <entry key="Python" value="6069" />
+          <entry key="Python" value="6106" />
         </counts>
       </usages-collector>
     </session>
@@ -71,7 +75,7 @@
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/serve.py">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="1185">
+            <state relative-caret-position="108">
               <caret line="79" column="24" lean-forward="true" selection-start-line="79" selection-start-column="24" selection-end-line="79" selection-end-column="24" />
               <folding>
                 <element signature="e#18#46#0" expanded="true" />
@@ -80,36 +84,23 @@
           </provider>
         </entry>
       </file>
-      <file pinned="false" current-in-tab="true">
+      <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/compare.sh">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="195">
-              <caret line="13" column="37" lean-forward="true" selection-start-line="13" selection-start-column="37" selection-end-line="13" selection-end-column="37" />
+            <state relative-caret-position="255">
+              <caret line="17" column="31" selection-start-line="17" selection-start-column="31" selection-end-line="17" selection-end-column="31" />
             </state>
           </provider>
         </entry>
       </file>
-      <file pinned="false" current-in-tab="false">
+      <file pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/rf.py">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="408">
-              <caret line="242" column="25" lean-forward="true" selection-start-line="242" selection-start-column="25" selection-end-line="242" selection-end-column="25" />
+            <state relative-caret-position="3495">
+              <caret line="233" column="15" lean-forward="true" selection-start-line="233" selection-start-column="15" selection-end-line="233" selection-end-column="15" />
               <folding>
                 <element signature="e#21#39#0" expanded="true" />
-                <marker date="1593330072988" expanded="true" signature="1440:1442" ph="..." />
-              </folding>
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/serve_lstm.py">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="90">
-              <caret line="6" column="21" selection-start-line="6" selection-start-column="21" selection-end-line="6" selection-end-column="21" />
-              <folding>
-                <marker date="1588426314177" expanded="true" signature="1271:1274" ph="..." />
-                <marker date="1588426314177" expanded="true" signature="3519:3521" ph="..." />
+                <marker date="1593568816783" expanded="true" signature="1440:1442" ph="..." />
               </folding>
             </state>
           </provider>
@@ -169,8 +160,8 @@
         <option value="$PROJECT_DIR$/train.py" />
         <option value="$PROJECT_DIR$/README.md" />
         <option value="$PROJECT_DIR$/serve_rf.py" />
-        <option value="$PROJECT_DIR$/rf.py" />
         <option value="$PROJECT_DIR$/serve.py" />
+        <option value="$PROJECT_DIR$/rf.py" />
         <option value="$PROJECT_DIR$/compare.sh" />
       </list>
     </option>
@@ -214,7 +205,7 @@
   <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="1593520174616" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1593571328554" />
     <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" />
@@ -259,26 +250,25 @@
       <workItem from="1588319878551" duration="41219000" />
       <workItem from="1588426002721" duration="336000" />
       <workItem from="1588427782140" duration="326000" />
-      <workItem from="1592809729651" duration="22448000" />
+      <workItem from="1592809729651" duration="25279000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="81302000" />
+    <option name="totallyTimeSpent" value="84133000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="0" width="1280" height="800" extended-state="0" />
-    <editor active="true" />
     <layout>
       <window_info id="Designer" order="0" />
       <window_info id="UI Designer" order="1" />
       <window_info id="Capture Tool" order="2" />
       <window_info id="Favorites" order="3" side_tool="true" />
       <window_info id="Image Layers" order="4" />
-      <window_info content_ui="combo" id="Project" order="5" sideWeight="0.49898168" visible="true" weight="0.2657512" />
+      <window_info active="true" content_ui="combo" id="Project" order="5" sideWeight="0.49898168" visible="true" weight="0.2657512" />
       <window_info id="Structure" order="6" sideWeight="0.50101835" side_tool="true" weight="0.24959612" />
       <window_info anchor="bottom" id="Version Control" order="0" />
-      <window_info active="true" anchor="bottom" id="Terminal" order="1" visible="true" weight="0.32739726" />
+      <window_info anchor="bottom" id="Terminal" order="1" visible="true" weight="0.32739726" />
       <window_info anchor="bottom" id="Event Log" order="2" side_tool="true" />
       <window_info anchor="bottom" id="Database Changes" order="3" show_stripe_button="false" />
       <window_info anchor="bottom" id="Docker" order="4" show_stripe_button="false" />
@@ -319,34 +309,6 @@
     <entry file="file://$PROJECT_DIR$/figure/predict_low_with_keras.png" />
     <entry file="file://$PROJECT_DIR$/figure/predict_high_with_tensorflow.png" />
     <entry file="file://$PROJECT_DIR$/figure/predict_high_with_pytorch.png" />
-    <entry file="file://$PROJECT_DIR$/requirements.txt">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="120">
-          <caret line="8" selection-start-line="8" selection-end-line="8" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/data/stock_data.csv">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="349">
-          <caret line="6110" lean-forward="true" selection-start-line="6110" selection-end-line="6110" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/data/data3.csv">
-      <provider selected="true" editor-type-id="text-editor">
-        <state>
-          <caret column="20" selection-start-column="20" selection-end-column="20" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/data/data2.csv">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="30">
-          <caret line="2" column="21" selection-start-line="2" selection-start-column="21" selection-end-line="2" selection-end-column="21" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/main.py">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="30">
@@ -364,13 +326,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/Dockerfile">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="255">
-          <caret line="17" column="7" selection-start-line="17" selection-start-column="7" selection-end-line="17" selection-end-column="7" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/train.py">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="810">
@@ -381,13 +336,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/bootstrap.sh">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="30">
-          <caret line="2" column="22" selection-start-line="2" selection-start-column="22" selection-end-line="2" selection-end-column="22" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/model_tensorflow.py">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="465">
@@ -398,13 +346,17 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/README.md">
-      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
-        <state split_layout="SPLIT">
-          <first_editor relative-caret-position="480">
-            <caret line="32" selection-start-line="32" selection-end-line="32" />
-          </first_editor>
-          <second_editor />
+    <entry file="file://$PROJECT_DIR$/Dockerfile">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="255">
+          <caret line="17" column="7" selection-start-line="17" selection-start-column="7" selection-end-line="17" selection-end-column="7" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/bootstrap.sh">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="30">
+          <caret line="2" column="22" selection-start-line="2" selection-start-column="22" selection-end-line="2" selection-end-column="22" />
         </state>
       </provider>
     </entry>
@@ -419,20 +371,54 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/rf.py">
+    <entry file="file://$PROJECT_DIR$/requirements.txt">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="408">
-          <caret line="242" column="25" lean-forward="true" selection-start-line="242" selection-start-column="25" selection-end-line="242" selection-end-column="25" />
-          <folding>
-            <element signature="e#21#39#0" expanded="true" />
-            <marker date="1593330072988" expanded="true" signature="1440:1442" ph="..." />
-          </folding>
+        <state relative-caret-position="120">
+          <caret line="8" selection-start-line="8" selection-end-line="8" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/README.md">
+      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
+        <state split_layout="SPLIT">
+          <first_editor relative-caret-position="480">
+            <caret line="32" selection-start-line="32" selection-end-line="32" />
+          </first_editor>
+          <second_editor />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/data/data2.csv">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="30">
+          <caret line="2" column="21" selection-start-line="2" selection-start-column="21" selection-end-line="2" selection-end-column="21" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/data/data3.csv">
+      <provider selected="true" editor-type-id="text-editor">
+        <state>
+          <caret column="20" selection-start-column="20" selection-end-column="20" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/data/stock_data.csv">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="91650">
+          <caret line="6110" lean-forward="true" selection-start-line="6110" selection-end-line="6110" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file:///usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/os.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="155">
+          <caret line="768" column="4" selection-start-line="768" selection-start-column="4" selection-end-line="768" selection-end-column="4" />
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/serve.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="1185">
+        <state relative-caret-position="108">
           <caret line="79" column="24" lean-forward="true" selection-start-line="79" selection-start-column="24" selection-end-line="79" selection-end-column="24" />
           <folding>
             <element signature="e#18#46#0" expanded="true" />
@@ -442,8 +428,19 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/compare.sh">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="195">
-          <caret line="13" column="37" lean-forward="true" selection-start-line="13" selection-start-column="37" selection-end-line="13" selection-end-column="37" />
+        <state relative-caret-position="255">
+          <caret line="17" column="31" selection-start-line="17" selection-start-column="31" selection-end-line="17" selection-end-column="31" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/rf.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="3495">
+          <caret line="233" column="15" lean-forward="true" selection-start-line="233" selection-start-column="15" selection-end-line="233" selection-end-column="15" />
+          <folding>
+            <element signature="e#21#39#0" expanded="true" />
+            <marker date="1593568816783" expanded="true" signature="1440:1442" ph="..." />
+          </folding>
         </state>
       </provider>
     </entry>
diff --git a/compare.sh b/compare.sh
index 3cd65bd..52d9752 100755
--- a/compare.sh
+++ b/compare.sh
@@ -10,19 +10,33 @@ fi
 awk 'FNR>1' ${FILE} | shuf > ./data/train.csv
 head -n 1   ${FILE} > ./tmp.csv
 head -n 1   ${FILE} > ./data/test.csv
-cat  ./data/train.csv >> ./tmp.csv
-tail -n 50 tmp.csv >> ./data/test.csv
+head -n -50 ./data/train.csv >> ./tmp.csv
+tail -n 50  ./data/train.csv >> ./data/test.csv
 
+cnt=`wc ${FILE} | awk '{print $1}'`
+step=50
+maxn=$((cnt / step * step + 1))
 
-for step in {51..501..50}
-do
+step=51
+while [[ ${step} -le ${maxn} ]]; do
 	echo "step=${step}"
 	tail -n ${step} tmp.csv > ./data/train.csv
-	algorithm=lr   python3 rf.py
-	algorithm=rf   python3 rf.py
-	algorithm=tree python3 rf.py
-	algorithm=ada  python3 rf.py
-	algorithm=gbdt python3 rf.py
+	echo 'lr:'
+	display_diff=0 algorithm=lr   python3 rf.py
+
+	echo 'rf:'
+	display_diff=0 algorithm=rf   python3 rf.py
+
+	echo 'dt:'
+	display_diff=0 algorithm=dt   python3 rf.py
+
+	echo 'ada:'
+	display_diff=0 algorithm=ada  python3 rf.py
+
+	echo 'gbdt:'
+	display_diff=0 algorithm=gbdt python3 rf.py
+	echo -e "\n"
+	step=$(($step + 50))
 done
 
 rm ./data/train.csv
diff --git a/rf.py b/rf.py
index a61c63d..ead9666 100644
--- a/rf.py
+++ b/rf.py
@@ -246,7 +246,7 @@ if __name__ == '__main__':
 		y_pred = adaboost_train(feature_data, label_data, test_feature)
 	elif algorithm == 'gbdt':
 		y_pred = adaboost_train(feature_data, label_data, test_feature)
-	elif algorithm == 'tree':
+	elif algorithm == 'dt':
 		y_pred = decision_tree_train(feature_data, label_data, test_feature)
 	else:
 		y_pred = random_forest_train(feature_data, label_data, test_feature)
@@ -259,5 +259,7 @@ if __name__ == '__main__':
 	r2 = 1 - MSE / var
 	# print(abs(test_label - y_pred) / test_label)
 	print(RMSE, r2)
-	for i in range(20):
-		print("{},{},{}".format(test_label[i], y_pred[i], (y_pred[i] - test_label[i]) / test_label[i]))
+	display_diff = os.getenv('display_diff', '0')
+	if display_diff == '1':
+		for i in range(20):
+			print("{},{},{}".format(test_label[i], y_pred[i], (y_pred[i] - test_label[i]) / test_label[i]))
diff --git a/serve.py b/serve.py
index df8701f..54e8b72 100644
--- a/serve.py
+++ b/serve.py
@@ -185,8 +185,7 @@ class MyHandler(BaseHTTPRequestHandler):
 							csvfile, delimiter=',',
 							quotechar='|', quoting=csv.QUOTE_MINIMAL
 						)
-						for i in range(5):
-							spamwriter.writerow(values)
+						spamwriter.writerow(values)
 
 				models[job]['lock'].release()
 				msg = {'code': 0, 'error': ""}