Python numpy中np_r和np_c

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np.r_是按行连接两个矩阵，就是把两矩阵上下相加，要求行数相等，类似于pandas中的concat()

np.c_是按列连接两个矩阵，就是把两矩阵左右相加，要求列数相等，类似于pandas中的merge()

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import numpy as np
 
def test():
    '''
    numpy函数np.c_和np.r_学习使用
    '''
    data_list1=[4,6,12,6,0,3,7]
    data_list2=[1,5,2,65,6,7,3]
    data_list3=[1,5,2,65,6,6,8]
    print u'np.r_  data_list1和data_list2合并'
    print np.r_[data_list1,data_list2]
    print u'np.r_  data_list1和data_list3合并'
    print np.r_[data_list1,data_list3]
 
 
    print u'np.c_ data_list1和data_list2合并'
    print np.c_[data_list1,data_list2]
    print u'np.c_ data_list1和data_list3合并'
    print np.c_[data_list1,data_list3]
 
 
if __name__=='__main__':
	test()