'TypeError：不能在if子句中将序列乘以'float''类型的非int。在Python中 [英] 'TypeError: can't multiply sequence by non-int of type 'float'' within if clause. in Python

问题描述

这里，从一个大的数据文件拆分成具有相同第4列的不同行，我试图绘制一条线，只有第3列每行的最高10％的条目：

Here, from a large data file split into different rows with the same 4th column, I'm trying to plot a line, with only the highest 10% of entries from each row from the 3rd column:

我的代码如下：

M1 = max(str(int(row1[i][2]))) #maximum value from row1, 3rd column
M2 = max(str(int(row2[j][2])))

if row1[i][2] >= M1*(0.1):
   plt.plot....

这给了我错误：

    if row1[i][2] >= M1*float(0.1):
TypeError: can't multiply sequence by non-int of type 'float'

我的行看起来像这样（每行在不同的行上）：

my rows look like this (each row on separate line):

[[1, -1, 10, 0]]
[[2, 1, 20, 5]]
[[3, 2, 15, 10], [4, 2, 50, 10], [5, 2, 90, 10]]
[[6, 3, 15, 11]]
[[7, 4, 50, 11]]
[[8, 5, 90, 11]]
[[9, 6, 13, 14]]
[[10, 7, 50, 14]]
[[11, 8, 70, 14], [12, 8, 95, 14], [13, 8, 75, 14]].....

任何帮助都将不胜感激！提前致谢

Any help would be greatly appreciated!! Thanks in advance

推荐答案

从中删除 str（int（）） MAX（STR（INT（ROW1 [I] [2]）））。你不能用字符串来乘以任何东西你也不能将列表转换为 int 。

Just remove str(int()) from max(str(int(row1[i][2]))). You can't multipy anything by a string neither can you convert a list to int.

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