我是Python数据科学的初学者。我正在处理点击流数据并尝试计算给定会话中项目的连续点击次数。我在'Block'栏中得到了累计金额。之后我在Block上聚合以获得每个块的计数。最后我想通过Session和Item进行分组并聚合块计数，因为可能存在这样的情况（此处为Sid = 6），其中项目首先连续m次，并且在其他项目之后连续出现，连续n次。所以连续计数应该是'm + n'。
这是数据集 -
Sid Tstamp Itemid 0 1 2014-04-07T10:51:09.277Z 214536502 1 1 2014-04-07T10:54:09.868Z 214536500 2 1 2014-04-07T10:54:46.998Z 214536506 3 1 2014-04-07T10:57:00.306Z 214577561 4 2 2014-04-07T13:56:37.614Z 214662742 5 2 2014-04-07T13:57:19.373Z 214662742 6 2 2014-04-07T13:58:37.446Z 214825110 7 2 2014-04-07T13:59:50.710Z 214757390 8 2 2014-04-07T14:00:38.247Z 214757407 9 2 2014-04-07T14:02:36.889Z 214551617 10 3 2014-04-02T13:17:46.940Z 214716935 11 3 2014-04-02T13:26:02.515Z 214774687 12 3 2014-04-02T13:30:12.318Z 214832672 13 4 2014-04-07T12:09:10.948Z 214836765 14 4 2014-04-07T12:26:25.416Z 214706482 15 6 2014-04-03T10:44:35.672Z 214821275 16 6 2014-04-03T10:45:01.674Z 214821275 17 6 2014-04-03T10:45:29.873Z 214821371 18 6 2014-04-03T10:46:12.162Z 214821371 19 6 2014-04-03T10:46:57.355Z 214821371 20 6 2014-04-03T10:53:22.572Z 214717089 21 6 2014-04-03T10:53:49.875Z 214563337 22 6 2014-04-03T10:55:19.267Z 214706462 23 6 2014-04-03T10:55:47.327Z 214821371 24 6 2014-04-03T10:56:30.520Z 214821371 25 6 2014-04-03T10:57:19.331Z 214821371 26 6 2014-04-03T10:57:39.433Z 214819762
这是我的代码 -
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example.employees</groupId>
<artifactId>employees-app</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>employees-app Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<tomcat.version>8.0.32</tomcat.version>
<spring.version>4.2.5.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-core</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-logging-juli</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper-el</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jsp-api</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>org.eclipse.jdt.core.compiler</groupId>
<artifactId>ecj</artifactId>
<version>4.5.1</version>
</dependency>
</dependencies>
<build>
<finalName>employees-app</finalName>
<resources>
<resource>
<directory>src/main/webapp</directory>
<targetPath>META-INF/resources</targetPath>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<inherited>true</inherited>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<finalName>employees-app-${project.version}</finalName>
<archive>
<manifest>
<mainClass>com.example.employees.Main</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
答案 0 :(得分：1)
赢得了这项工作吗？
<table ng-table="vm.tableParams" class="table" show-filter="true">
<colgroup>
<col width="60%" />
<col width="20%" />
<col width="20%" />
</colgroup>
<tr class="ng-table-group" ng-repeat-start="group in $groups">
<td colspan="2">
<a href="" ng-click="group.$hideRows = !group.$hideRows">
<span class="glyphicon" ng-class="{ 'glyphicon-chevron-right': group.$hideRows, 'glyphicon-chevron-down': !group.$hideRows }"></span>
<strong>{{ group.value }}</strong>
</a>
</td>
</tr>
<tr ng-hide="group.$hideRows" ng-repeat="user in group.data" ng-repeat-end>
<td title="'Name'" filter="{ Name: 'text'}" sortable="'Name'">
{{user.name}}
</td>
<td title="'Age'" filter="{ Value: 'number'}" sortable="'Value'">
{{user.age}}
</td>
</tr>
</table>
答案 1 :(得分：1)
IIUC你可以：
k['Block'] =( k['Itemid'] != k['Itemid'].shift(1) ).astype(int).cumsum()
#print k
z=k.groupby(['Sid','Itemid', 'Block']).size().groupby(level=[0,1]).sum().reset_index(name='sum_counts')
print z
Sid Itemid sum_counts
0 1 214536500 1
1 1 214536502 1
2 1 214536506 1
3 1 214577561 1
4 2 214551617 1
5 2 214662742 2
6 2 214757390 1
7 2 214757407 1
8 2 214825110 1
9 3 214716935 1
10 3 214774687 1
11 3 214832672 1
12 4 214706482 1
13 4 214836765 1
14 6 214701242 1
15 6 214826623 1
16 7 214826715 1
17 7 214826835 1
18 8 214838855 2
19 9 214576500 3
20 11 214563337 1
21 11 214706462 1
22 11 214717089 1
23 11 214819762 1
24 11 214821275 2
25 11 214821371 6