"Smelting number into gold RapidMiner two" data import, preprocessing, export

(1) Link database

(2) Select relevant data

(3) Import data display

(4) The second option opens a CSV file directly

(5) Set storage location

Get the data table to insert the CSV file

(6) view datasets in the metadata view and in Data View. Note whether there are any attributes that have missing or inconsistent data.

(7) Replace missing value

Result the number of deletions under the buying attribute is 0

(7) Filter other missing data using filters

Data missing from metadata is deleted