Name: Tableauで円グラフを作る円グラフで比率を表示する (Build a pie chart in Tableau: Show a proportion with a pie chart)
Uploaded: 2021-01-14T08:56:39.000Z
Duration: 3 min 8 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

In this video, we’ll create the second chart, which will be part of our dashboard – a

pie chart showing the percentage of the total reviews that each audiobook obtained.

The number of reviews is quite important in the marketplace we are studying, and this

is the reason why we are interested in finding out which audiobooks collected more reviews.

An alternative visualization would be a pie chart showing us the percentage of people

Given that we know what we would like to accomplish, things should be easier, right?

I’ll add the Rating field to the workspace area.

The number we obtained is the sum of all ratings.

Let’s use “Count” for this measure.

The total number of reviews is 10,798, and we know for a fact that this is true.

Let’s go ahead and add the audiobook names dimension above the ratings field, shall we?

Now, I can simply select the pie chart icon within the “Show me” functionality and

A really tiny one, but still a pie chart  To increase the chart’s size, I can simply

click anywhere in the workspace area, hold the Control key and then use the arrow keys.

If I press Control and Up, the chart grows vertically, while Control and Right arrow

increase the chart’s size horizontally.

The opposite is true as well, we can decrease the chart’s size by pressing Ctrl and Down

Otherwise it is difficult to gain an idea what portion of overall reviews a specific

I’ll drag the “Rating” field in “Label” and the number of reviews appears right next

to each audiobook (again we need the Count of ratings, and not the Sum).

But how do we display these as a percentage?

All I have to do is go to “Analysis”, select “Percentage of”, and then click

These are the percentages each audiobook accounted for among the total number of reviews.

The pie chart and the labels we added show us that Audiobooks 1 and 2, account for more

that 50% of the total number of reviews the company received.

The business relies greatly on these best-sellers.

In our next lesson, we’ll create the third and final chart that would allow us to complete

our initial plan and obtain the dashboard we intended from the very beginning.

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Tableauで円グラフを作る円グラフで比率を表示する (Build a pie chart in Tableau: Show a proportion with a pie chart)

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