Numerical data for Probing quasi-integrability of the Gross-Pitaevskii equation in a harmonic-oscillator potential T Bland N Parker N Proukakis B Malomed 10.17634/137139-5 https://data.ncl.ac.uk/articles/dataset/Numerical_data_for_Probing_quasi-integrability_of_the_Gross-Pitaevskii_equation_in_a_harmonic-oscillator_potential/10281365 The data set corresponds to the figures in the associated publication. Data for each of the figures are clearly labelled. Full details of how the data was generated are given in the associated publication. 2018-01-01 00:00:00 Dark soliton Integrability Gross-Pitaevskii equation Sound waves Phonons Galerkin approximation Bose-Einstein condensate