The basic algorithm to perform the folding test of unimodality.
Given a dataset X (d dimensional, n samples), the test checks whether the
distribution of the data are rather unimodal or rather multimodal. This
package stems from the following research publication:
Siffer Alban, Pierre-Alain Fouque, Alexandre Termier, and Christine Largouët.
"Are your data gathered?" In Proceedings of the 24th ACM SIGKDD International
Conference on Knowledge Discovery Data Mining, pp. 2210-2218. ACM, 2018.