diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 3ea3625..25c52fd 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -29,13 +29,13 @@
           <entry key="md" value="2" />
           <entry key="png" value="7" />
           <entry key="py" value="13" />
-          <entry key="sh" value="3" />
+          <entry key="sh" value="4" />
           <entry key="txt" value="2" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.open">
         <counts>
-          <entry key="Bash" value="3" />
+          <entry key="Bash" value="4" />
           <entry key="Dockerfile" value="2" />
           <entry key="IDEA_MODULE" value="1" />
           <entry key="Image" value="7" />
@@ -51,28 +51,28 @@
           <entry key="dummy" value="5" />
           <entry key="gitignore" value="12" />
           <entry key="md" value="234" />
-          <entry key="py" value="6046" />
-          <entry key="sh" value="5" />
+          <entry key="py" value="6069" />
+          <entry key="sh" value="323" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.edit">
         <counts>
-          <entry key="Bash" value="5" />
+          <entry key="Bash" value="323" />
           <entry key="Dockerfile" value="81" />
           <entry key="Markdown" value="234" />
           <entry key="PLAIN_TEXT" value="26" />
-          <entry key="Python" value="6046" />
+          <entry key="Python" value="6069" />
         </counts>
       </usages-collector>
     </session>
   </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file pinned="false" current-in-tab="true">
+      <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="33">
-              <caret line="71" column="12" selection-start-line="71" selection-start-column="12" selection-end-line="71" selection-end-column="12" />
+            <state relative-caret-position="1185">
+              <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" />
               </folding>
@@ -80,6 +80,15 @@
           </provider>
         </entry>
       </file>
+      <file pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/compare.sh">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="166">
+              <caret line="15" column="19" lean-forward="true" selection-start-line="15" selection-start-column="19" selection-end-line="15" selection-end-column="19" />
+            </state>
+          </provider>
+        </entry>
+      </file>
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/rf.py">
           <provider selected="true" editor-type-id="text-editor">
@@ -138,6 +147,7 @@
       <find>traceback</find>
       <find>models[job]</find>
       <find>range</find>
+      <find>exist</find>
     </findStrings>
   </component>
   <component name="Git.Settings">
@@ -161,6 +171,7 @@
         <option value="$PROJECT_DIR$/serve_rf.py" />
         <option value="$PROJECT_DIR$/rf.py" />
         <option value="$PROJECT_DIR$/serve.py" />
+        <option value="$PROJECT_DIR$/compare.sh" />
       </list>
     </option>
   </component>
@@ -203,7 +214,7 @@
   <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="1593507304004" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1593511522932" />
     <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" />
@@ -248,12 +259,12 @@
       <workItem from="1588319878551" duration="41219000" />
       <workItem from="1588426002721" duration="336000" />
       <workItem from="1588427782140" duration="326000" />
-      <workItem from="1592809729651" duration="20067000" />
+      <workItem from="1592809729651" duration="21784000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="78921000" />
+    <option name="totallyTimeSpent" value="80638000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="0" width="1280" height="800" extended-state="0" />
@@ -264,10 +275,10 @@
       <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 active="true" content_ui="combo" id="Project" order="5" sideWeight="0.49898168" visible="true" weight="0.2657512" />
+      <window_info 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 anchor="bottom" id="Terminal" order="1" visible="true" weight="0.32739726" />
+      <window_info active="true" 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" />
@@ -421,14 +432,21 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/serve.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="33">
-          <caret line="71" column="12" selection-start-line="71" selection-start-column="12" selection-end-line="71" selection-end-column="12" />
+        <state relative-caret-position="1185">
+          <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" />
           </folding>
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/compare.sh">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="166">
+          <caret line="15" column="19" lean-forward="true" selection-start-line="15" selection-start-column="19" selection-end-line="15" selection-end-column="19" />
+        </state>
+      </provider>
+    </entry>
   </component>
   <component name="masterDetails">
     <states>
diff --git a/compare.sh b/compare.sh
new file mode 100755
index 0000000..3cd65bd
--- /dev/null
+++ b/compare.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+FILE=./dataset.csv
+
+if ! [[ -f "$FILE" ]]; then
+    echo "$FILE not exist."
+    exit 1
+fi
+
+awk 'FNR>1' ${FILE} | shuf > ./data/train.csv
+head -n 1   ${FILE} > ./tmp.csv
+head -n 1   ${FILE} > ./data/test.csv
+cat  ./data/train.csv >> ./tmp.csv
+tail -n 50 tmp.csv >> ./data/test.csv
+
+
+for step in {51..501..50}
+do
+	echo "step=${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
+done
+
+rm ./data/train.csv
+rm ./data/test.csv
+rm tmp.csv
\ No newline at end of file