2-point statistics covariance with fewer mocks: covariances from various datasets and results of the fits

A set of covariances from random poissonian samples, LRG and ELG, and lognormal mocks, used for plots in the relevant publication.本数据集包含来自随机泊松样本、发光红星系（Luminous Red Galaxy, LRG）、发射线星系（Emission Line Galaxy, ELG）以及对数正态模拟样本的协方差集合，用于相关研究论文中的绘图工作。