人工产生swissroll数据集，方便一些降维方法的效果验证

局部线性嵌入法，用于数据降维 .lle.m -- A simple matlab routine to perform LLE. .scurve.m -- Code to run the \"s-curve\" example. .swissroll.m -- Code to run the \"swiss roll\" example.

基于LLE（局部线性嵌入）算法的瑞士卷降维程序，程序自动生成瑞士卷，然后降维输出图像。-Based on LLE (locally linear embedding) dimensionality reduction algorithm Swiss roll program, the program automatically generates Swiss roll, then drop-dimensional output image.

此文件包含生成swissroll数据集,并用LLE算法进行降维处理,很实用,应该对现在学习流形学习的同学有帮助。-This file contains data sets generated swissroll and dimensionality reduction algorithm with the LLE process, it is useful, it should now learning manifold learning for students help.