Using data frame analytics requires source data to be structured as a two dimensional "tabular" data structure, in other words a data frame. Transforms enable you to create data frames which can be used as the source for data frame analytics.
This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features.
Data frame analytics enable you to perform different analyses of your data and annotate it with the results. Consult Setup and security to learn more about the licence and the security privileges that are required to use data frame analytics.