对UCI数据集之一进行PCA特征抽取实验,给出在二维PCA特征空间的数据散点图。,UCI data sets on one of PCA feature extraction experiments are given in the two-dimensional PCA feature space of the data scatter.

uci机器学习数据库关于字符识别的源数据。是字符识别的研究的关键数据来源。包括手写字体和印刷体两类，手写的数字和印刷体的字母。-uci machine learning database on the source character recognition data. Character recognition research is the key source of data. Including two types of handwriting fonts, and print, han

UCI数据集可以进行数据分类，数据格式为matlab可以直接使用的.mat格式-UCI data sets for data classification, data format for the matlab can be used directly. Mat format