Data import system for data analysis system

摘要

A data import system enables access to data of multiple types from multiple data sources of different formats and provides an interface for importing data into a data analysis system. The interface enables a user to customize the formatting of the data as the data is being imported into a data analysis system. A user may select first user defined options for operating on a first data set received during a data importation process. An intermediate representation of the data set is generated based on the user first defined options. A user may specify second user defined options based on the intermediate representation during the data importation process. The second user defined options are processed to produce a final data representation of the data set to be used for analysis of the data. The intermediate representation may be a data table. The processing of a data set may include merging a first and second data set to produce the final data representation. The second user defined options may enable a user to select a basic operation for merging the data sets or to select a non-basic operation for merging the data sets. The basic operation may combine data sets in response to a user's selection of a first graphical interface control, and the non-basic operation may combine the data sets based on user selection of at least two graphical interface controls from a group of graphical interface controls.