DiVoMiner® provides a fast and convenient method for data sampling. A proportion of data is sampled from the overall data to form a Sample Database, which is independent from the “Coding Pool”. Data in the Sample Database can perform functions such as machine coding, manual coding, statistical analysis, and visualization independently. Multiple coding databases can operate in parallel.

There are two ways to create a sample database. The first is to sample from the [Data Management] section on the [Overview] page. The second is to sample from the [Coding Pool]. The specific steps are shown as below:

Method 1: Sampling from the [Overview] page

Go to [Data Management]-[Overview], select a database, such as [News Database], and click [Sampling].

Name the sample database to create a new sample database, or select an existing sample database (this way will add samples to the existing sample database). Click [Next].

The sampling method can be set as:  random sampling, or according to certain criteria (e.g. coding time), and arrange samples in ascending or descending order.

Fill in the sampling size. The sampling size can be set as a specific number or a percentage of the overall data.

Set the sampling range, that is, sampling within a specific data range. With certain sampling criteria, the sampling range is further specified.

Sampling criteria:

• [All criteria] refers to the screening conditions that requires all to be met at the same time, and the relationship between the set conditions is “AND”;
• [Any criteria] refers to the “OR” relationship between the set conditions; and any one of them is met for screening.

Click [OK] to complete the sampling range setting.

The sampled database is displayed in the database list under [Data Management]-[Overview] section, and independent operations can be performed directly in the sample database.

Note: The data in the sampled database is independent from other databases. After sampling, the data capacity and file capacity will be counted, therefore the total counts of the Coding Pool will increase accordingly.

Method 2: [Coding Pool] Sampling

In the [Coding Pool], select a database such as [News Database], and click [Sampling]. The sampling method setting is the same as in the [Overview] page: go to the sampling setting; name the sample database; select the sampling method, and set the sampling range to complete the sampling.