This program package is for the studies of frequency-dependent P-wave anisotropy due to wave-induced fluid flow and elastic scattering in a fluid-saturated porous medium with aligned fractures. The correspondences of the codes with the figures in the paper are as follows: Frequency_dependent_anisotropy_P_different_angles.m corresponds to Figure 4. Frequency_dependent_anisotropy_P_different_frequencies.m corresponds to Figure 5. Anisotropic_parameters_per_vis.m corresponds to Figure 6. Anisotropic_parameters_fra_radius.m corresponds to Figure 7. Anisotropic_parameters_fra_thickness.m corresponds to Figure 8. Anisotropic_parameters_fluid_modulus.m corresponds to Figure 9. Comparison_Krenk_model.m corresponds to Figure 10. Comparison_Rathore_data.m corresponds to Figures 11a and 11c. Frequency_dependent_vel_Rathore.m corresponds to Figures 11b and 11d. Comparison_Tillotson_data.m corresponds to Figure 12. The other programs in the package are sub-programs that will be used in the main programs introduced above.