iracer的博客

This articles contains topics about forward propagation of Neural Networks, features of Neural Network and other network architectures.

This article is about the model representation of Neuron Network. It contains the topics about nonlinear hypotheses, neurons and the brain, model representation.

This articles contains topics about Neural Networks examples and intuitions.

This series of articles are the study notes of " Machine Learning ", by Prof. Andrew Ng., Stanford University. This article is the notes of week 4. It contains topics about for Neural Networks Multi-class Classification.

Matlab的VideoWrite函数，配合open,writeVideo和close方法可以从图像(figure)中创建视频文件、静态图像或Matlab视频。VideoWrite函数使用预先定义的属性来设置视频属性，例如'Uncompressed AVI' or 'MPEG-4'等，但没有自定义视频像素尺寸（长×宽）的方法。本文结合上一篇博文《Matlab动态绘图——半径渐变的圆形与绕圆心旋转的直线》的例子与VideoWrite()函数，通过每读一帧就改变该帧尺寸的方法实现了自定义保存视频尺寸。

本文通过一个具体例子介绍了如何在Matlab中动态绘图。包括绘制一个半径逐渐变化的圆形以及一个绕圆心旋转的直线段。如果项目中有很多参数需要协调，那么设置一个统一的时统就非常必要。