tabelu 条形图及技巧

我就是我 2022-12-20 11:08 192阅读 0赞

Use bar charts to compare data across categories. You create a bar chart by placing a dimension on the Rows shelf and a measure on the Columns shelf, or vice versa.

A bar chart uses the Bar mark type. Tableau selects this mark type when the data view matches one of the two field arrangements shown below. You can add additional fields to these shelves.

For more information about the Bar mark type, see [Bar mark][].

**Note**: At the end of the procedure is an extra step you can take to display totals at the tops of the bars.

<table> 
 <tbody> 
  <tr> 
   <td><strong>Creates Vertical Bars</strong></td> 
   <td><strong>Creates Horizontal Bars</strong></td> 
  </tr> 
  <tr> 
   <td><img alt="" src="https://img-blog.csdnimg.cn/img_convert/f716763449c4c54261579e0d739ebe12.png"></td> 
   <td><img alt="" src="https://img-blog.csdnimg.cn/img_convert/8d881b2626975365d90258c7008ee549.png"></td> 
  </tr> 
 </tbody> 
</table>

To create a bar chart that displays total sales over a four-year period, follow these steps:

## How to Build a Bar Chart ##

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Step 1:

Connect to the Sample - Superstore data source.

![1ba7bf80ff13571472083d2ae5ecb215.png][]

Note: In Tableau 2020.2 and later, the Data pane no longer shows Dimensions and Measures as labels. Fields are listed by table or folder.

## Check your work! Watch steps 1-10 below. ##

![38fb2a2df297469f63a4e3f6ad786698.gif][]

Note: In Tableau 2020.2 and later, the Data pane no longer shows Dimensions and Measures as labels. Fields are listed by table or folder.

## One Step Further: Add Totals To Stacked Bars ##

Adding totals to the tops of bars in a chart is sometimes as simple as clicking the Show Mark Labels icon in the toolbar. But when the bars are broken down by color or size, each individual segment would labeled, rather than the total for the bar. With a few steps, you can add a total label at the top of every bar even when the bars are subdivided as in the view you just created. In the following procedure you will technically be adding a reference line. But by configuring that "line" in a certain way, you end up with the labels you want.

Your view now has currency totals at the top of each bar:

![b9d9d9e8010794426c71ce692bc878aa.png][]

You may need to adjust the view to make it look just right. If the bars are too narrow, the numbers are truncated; to fix this, press Ctrl + Right on the keyboard to make the bars wider. Or if you want to center the totals over the bars—by default, they are left-aligned. Do the following:

1.  1.  From the Analytics pane, drag a Reference Line into the view and drop it on Cell.
        
        ![3ee100fe5a72b1e067a49a932f42e488.png][]
    2.  In the Edit Line, Band, or Box dialog box, set the aggregation for SUM(Sales) to Sum, set Label to Value, and set Line under Formatting to None:
        
        ![a0e2dc64cf1269b0e8121c9bdc9c1468.png][]
        
        Then click OK to close the Edit Reference Line, Band, or Box dialog box.
    
    1.  Right-click any of the totals on the bar chart and select Format.
    2.  In the Format window, in the Reference Line Label area, open the Alignment control and select the Center option for Horizontal alignment:
        
        ![7173735cd3994cbbbb1805e3cc3aea84.png][]

[Bar mark]: https://help.tableau.com/current/pro/desktop/en-us/viewparts_marks_marktypes.htm#BarMark
[1ba7bf80ff13571472083d2ae5ecb215.png]: /images/20221120/a2e8f46af44f44588e662733dddd8df4.png
[38fb2a2df297469f63a4e3f6ad786698.gif]: /images/20221120/01cc9ec5ddcb44a4bce1a5f2c9559016.png
[b9d9d9e8010794426c71ce692bc878aa.png]: https://img-blog.csdnimg.cn/img_convert/b9d9d9e8010794426c71ce692bc878aa.png
[3ee100fe5a72b1e067a49a932f42e488.png]: https://img-blog.csdnimg.cn/img_convert/3ee100fe5a72b1e067a49a932f42e488.png
[a0e2dc64cf1269b0e8121c9bdc9c1468.png]: https://img-blog.csdnimg.cn/img_convert/a0e2dc64cf1269b0e8121c9bdc9c1468.png
[7173735cd3994cbbbb1805e3cc3aea84.png]: https://img-blog.csdnimg.cn/img_convert/7173735cd3994cbbbb1805e3cc3aea84.png