[/map {"- map/map "}) [/map/topicref {"- map/topicref "}) [/map/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicmeta/navtitle {"- topic/navtitle "}) Overview (navtitle][/map/topicref/topicmeta/linktext {"- map/linktext "}) Overview (linktext][/map/topicref/topicmeta/shortdesc {"- map/shortdesc "}) This section describes transformations and the custom transform functions available in Big Data Discovery. (shortdesc] (topicmeta][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) About transformations and transformation scripts (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) About transformations and transformation scripts (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) Transformations are changes you can make to your project data set, after the source data has been processed and loaded into Studio. Transformations can be thought of as a substitute for an ETL process of cleaning your data. Transformations can overwrite an existing attribute, modify attributes, or create new attributes. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) About Groovy (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) About Groovy (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) Groovy is a dynamically-typed scripting language. Code written in the Java language is valid in Groovy, so users not familiar with Groovy may resort to the Java syntax. All custom transform functions available for you in Big Data Discovery are written in Groovy. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) About transform functions (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) About transform functions (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) Transform functions are customized Groovy functions available in Big Data Discovery that you can include in your transformation scripts. Each transform function performs a specific operation on your data, from simple ones, such as converting an attribute to a different data type, to more complex ones, such as determining the overall sentiment of a document or a string of text. (shortdesc] (topicmeta] (topicref] (topicref] (map]