考试大纲解读
很多同学张嘴叭叭就要几天拿下的,结果连考试大纲都不看。不学,不练,不看,不会。上来就要裸考,同学,你要脱纲啊。
这本教科书的编写就是紧紧围绕着Tableua官方所给出的考点,请注意是紧紧的,你要是想学点超纲的的,那种一般人把握不住的知识的话,对不起 得交钱。
考试形式: 45道多选 看清楚了是多选 多选就意味着你必须有能力判断每个选项的对错
考试时间:60分钟
第一部分 连接和准备数据 (23%)
Domain 1: Connecting to and Preparing Data
1.1 Create live connections and extracts 创建live connection and extractslive connection就是数据从哪来的就搁那,我在Tableau里边也不碰它。 Extract就是抄作业,把数据从别人的作业复制到你的作业本上
- 1.1.1 Create a live connection to a data source
- 1.1.2 Explain the differences between using live connections versus extracts
- 1.1.3 Create an extract
- 1.1.4 Save metadata properties in a .TDS (这一条你不特殊学的话,你都不知道是啥意思)
- 1.1.5 Create a data source that uses multiple connections
1.2 Create and manage the data model创建数据模型。 数据模型就是把几个表整到一起,但是你不能硬整,大力出不了奇迹,你得按照一定的方法把它们拼到一起
这个部分的核心考点就是不同表格之间的关系‘说! 你们之间到底是什么关系’
- 1.2.1 Add relationships to a data source
- 1.2.2 Add joins and unions
- 1.2.3 Explain when to use a join versus a relationship
1.3 Manage data properties Data Properties主要是给每个column改变出厂设置,比如以前这个column name叫刘英,现在你叫Lucy了
- 1.3.1 Rename a data field
- 1.3.2 Assign an alias to a data value
- 1.3.3 Assign a geographic role to a data field
- 1.3.4 Change data type for a data field (number, date, string, Boolean, etc.)
- 1.3.5 Change default properties for a data field (number format, aggregation, color, date format, etc.)
Domain 2: Exploring and Analyzing Data 探索和分析数据(37%)三分之一的分数在此
2.1 Create basic charts (你要是这章都不学你给我出去)
- 2.1.1 Create a bar chart
- 2.1.2 Create a line chart
- 2.1.3 Create a scatterplot 散点图
- 2.1.4 Create a map using geographic data 地图
- 2.1.5 Create a combined axis chart (好好学,考完证也经常用的到)
- 2.1.6 Create a dual axis chart
- 2.1.7 Create a stacked bar
- 2.1.8 Create a density map
- 2.1.9 Create a chart to show specific values (crosstab, highlight table)
2.2 Organize data and apply filters
- 2.2.1 Create groups by using marks, headers, and the data pane (这是一个充满了Tableau术语的考点)
- 2.2.2 Create sets by using marks and the data pane (创建Sets对下一个Level的考试也非常有用)
- 2.2.3 Organize dimensions into a hierarchy (hierarchy是Tableau的一个特殊功能,会单独讲)
- 2.2.4 Add a filter to a view
- 2.2.5 Add a date filter
2.3 Apply analytics to a worksheet
- 2.3.1 Add a manual or a computed sort (排序)
- 2.3.2 Add a reference line (添加辅助线,但是这个reference line是有很多种类型的)
- 2.3.3 Use a quick table calculation
- 2.3.4 Use bins and histograms
- 2.3.5 Create a calculated field (e.g. string, date, simple arithmetic)
- 2.3.6 Explain when to use a parameter (一般这种Explain的问题会以选择题的形式出现)
- 2.3.7 Display totals on a worksheet (这里说的不全面,totals包含subtotal和grand total)
Domain 3: Sharing Insights (分享洞见 - 让别人看看你做出来了个啥)
3.1 Format view for presentation (这个部分的知识基本上就是知道和不知道,没有太深的深度)
- 3.1.1 Use color from the marks card
- 3.1.2 Configure fonts
- 3.1.3 Format marks as shapes
- 3.1.4 Configure viz animations
- 3.1.5 Change size of marks
- 3.1.6 Show and hide legends
3.2 Create and modify a dashboard
Action,Layout 这些可都不是看起来那么简单的。 你可能觉得你会,但是一操作起来就蒙圈了。这里有个东西没说,但是一般Tableau Developer都犯怵的就是Container
- 3.2.1 Add worksheets to a dashboard
- 3.2.2 Add interactive elements for consumers (e.g. show filters, data highlighter, tooltips)
- 3.2.3 Add dashboard actions (e.g. filter action, highlight action, parameter control, URL action)
- 3.2.4 Configure a dashboard layout and create device-specific dashboards
- 3.2.5 Create a story and a story point
3.3 View and share workbook data
- 3.3.1 Share a workbook (e.g. twbx as a PDF or an image, publish to Tableau Server)
- 3.3.2 View and export underlying data
- 3.3.3 Export to Microsoft PowerPoint
Domain 4: Understanding Tableau Concepts (理解Tableau概念)
4.1 Understand dimensions and measures (为了这一考点,特意写了一篇文章。参见章节)
- 4.1.1 Explain what kind of information dimensions usually contain
- 4.1.2 Explain what kind of information measures usually contain
- 4.1.3 Explain the difference between dimensions and measures
4.2 Understand discrete and continuous fields (离散和连续)
- 4.2.1 Explain how discrete fields are displayed
- 4.2.2 Explain how continuous fields are displayed
- 4.2.3 Explain the difference between discrete date parts and continuous date values (请注意这里说的是date,别傻不拉几的以为这里就是让你解释,你心想老师我能解释明白啊,人家其实问的是如果用不同类型的date, 它会对Tableau里的作图有什么影响)
4.3 Understand aggregations
- 4.3.1 Explain the default aggregation for measures
- 4.3.2 Describe how an aggregated measure changes when dimensions are added to a view
(先认真阅读product hierarchy一课,然后配合一定的练习慢慢就有体会了)