我有一个包含 m 行的文本文件，如下所示:
0.4698537878,0.1361006627,0.2400000000,0.7209302326,0.0054816275,0.0116666667,1 0.5146649986,0.0449680289,0.4696969697,0.5596330275,0.0017155500,0.0033333333,0 0.4830107706,0.0684999306,0.3437500000,0.5600000000,0.0056351257,0.0116666667,0 0.4458490073,0.1175445834,0.2307692308,0.6212121212,0.0089169801,0.0200000000,0
我尝试读取文件并将其复制到矩阵中，如下面的代码所示:
import string
file = open("datasets/train.txt",encoding='utf8')
for line in file.readlines():
tmp = line.strip()
tmp = tmp.split(",")
idx = np.vstack(tmp)
idy = np.hstack(tmp[12])
matrix = idx
我想将文件读入矩阵，在我的示例数据中，矩阵大小应为:(4,6) and idy: (4,1) # 最后一行，标签
但它垂直堆叠了文件的最后一行!？ 像那样:
0.4458490073,
0.1175445834,
0.2307692308,
0.6212121212,
0.0089169801,
0.0200000000,
0
有什么帮助吗？
最佳答案
由于您使用的是 numpy，因此此功能已经可用:
arr = np.genfromtxt('file.csv', delimiter=',')
然后您可以按如下方式分隔标题:
data = arr[:, :-1]
header = arr[:, -1:]
关于python - 将文本文件读入矩阵 - python，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/48727336/