Use excel for data mining (4) ---- highlight abnormal values and excel Data Mining

Use excel for data mining (4) ---- highlight abnormal values and excel Data Mining

Use excel for data mining (4) ---- highlight Abnormal Values

After configuring the environment, you can use excel for data mining.

For environment configuration problems, see:

Http://blog.csdn.net/xinxing__8185/article/details/46445435

Example DMAddins_SampleData.xlsx

File: http://download.csdn.net/detail/xinxing__8185/8780481

 

In the data table, select the table analysis tools sample table, which displays user information statistics, including marital status, gender, income, children, education level, occupation, and house ownership, number of vehicles, area of residence, age, and whether bicycles have been purchased.

 

Hover the mouse over the data in the table, and an additional tab is displayed.

 

In the analysis data obtained from a group of parallel measurements, some values may be far different from other data, which are called the Group value or escape value (Qutlier ). there are many statistical methods for analyzing the group value.

On the surface, the deviation values are very large and very small values. These values may be caused by errors, or they may not be errors. However, these values are small and not representative, delete it to avoid affecting subsequent data mining.

The following is an example of how to use the highlight Abnormal Value Function to analyze the data:

Click to highlight abnormal values. The following dialog box is displayed:

 

 

Select the columns to be analyzed to generate the following reports:

 

 

 

 

From the results, the detection of abnormal values is not isolated, but comprehensive data factors between columns.

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