To be able to see the results and work with them, the results from a project needs to be stored. There are different ways of storing data in BellaDati ML Studio - permanently and temporarily. For storing the data permanently, they need to be stored in data set. Temporary storage is available only for current session. Tables and various charts can be used as temporary storage (temporary output). These tables and charts are deleted after end of each session. 

Storing data Permanently in Data Set

To be able to store data in data set, the data set with correct structure (attribute and indicators) needs to be already created. See Creating Data Set for more information.

Function storeDataset is used for storing the data. The function is defined like this:

storeDataset(Integer datasetId, InputStream is, Map<Object, Object> params)

Parameters

All parameters are mandatory.

• datasetID - defines the id of the data set. It can be set by the Code builder or it can be found in the URL of the data set.
• is - defines the source of data which should be stored. It needs to be in a form of an input stream - see Reading as a stream for more information.
• params - a Map of parameters which defines mapping and method of storing. 
  • mapping - list of String where each String is a code of a column from target data set. This means, that first column from the source input stream is mapped to first column in the list, second columns from the source input stream is mapped to second column in the list etc.
  • method - defines method of import which will be used for storing. If not defined, the data will be appended to the data already stored in the target data set. If defined as delete_all, all existing data in the target data set will be deleted and data from the input stream will be stored in the data set.

Sample usage

table('temptable', [ [ 1, 2 ], [ 2, 3], [ 3, 4] , [ 4, 5] ], 'Column 1','Column 2')
storeDataset(16, streamTable('temptable'), ["mapping": "M_COLUMN_1,M_COLUMN_2","method" : "delete_all"])

This code will first create a temporary table 'temptable' and then store in data set with ID 16. First column of the table is mapped to indicator with code M_COLUMN_1, second column is mapped to indicator with code M_COLUMN_2. Method delete_all is used and therefore all existing data in the target data set will be deleted before storing data from the table.

Storing Data Temporarily

Data can temporarily stored (displayed) as:

• Table 
• Bar Chart
• Box Plot Chart.

Storing data in table

Temporary table can be used for displaying results in a form of rows and columns. List of tables is displayed in control sidebar on left side of the screen in section Tables. The table itself is displayed in the right sidebar. It is also available to download it as a CSV file.

Function table is used for storing the data in table. The function is defined like this:

table(String id, Object data, String... columns)