Which of the following is considered a data preparation node?

The Sort node is classified as a data preparation node because its primary function is to reorder data according to specified criteria, which is a vital step in preparing data for analysis. Sorting can help streamline the analysis process by organizing data and making it easier to identify trends, patterns, or anomalies. Efficient data preparation ensures that subsequent analytical steps are based on an appropriately structured dataset.

In contrast, while the Excel Node can be used to import and export data, its role is not exclusively tied to preparing data for predictive modeling. The Statistics node provides descriptive statistics, which, while useful, does not perform any data transformation or cleaning tasks. The Table node is used primarily for displaying data in a tabular format rather than preparing it for analysis. Each of these non-correct options serves different purposes, but the Sort node specifically aligns with the function of preparing data by organizing it effectively for further analysis.