无监督学习，进行线性拟合梯度下降，选择thet-This first exercise will give you practice with linear regression. These exercises have been extensively tested with Matlab, but they should also work in Octave, which has been called a free version of Matlab. If you are usi

MATLAB中按钮的输出,其中包括警告、出错、帮助以及“是否确定”按钮。-MATLAB output of a button, including warning, error, help, and Are you sure button.