使用矩阵并将所有内容保存在一个 txt 文件中

Question

我是使用 python 3 的真正初学者

我需要在一系列 txt 文件中减去两个不同的矩阵，然后在一个 txt 文件中得到所有结果。代码一直有效，直到我要求打印（它确实做到了），但是当我想保存“ncol= X.shape[1] indecerror: tuple index out of range”时，我不断收到错误消息

这里是代码

import sys, os

import numpy as np
from PIL import Image

newpath = "C:/Users/.../PycharmProjects/.../output/differenza"

os.makedirs(newpath)

for txt in range(162, 167):

    #fn = "C:/Users/.../PycharmProjects/.../output" + str(txt).zfill(0) + ".txt"

    v1 = np.loadtxt("C:/Users/.../PycharmProjects/.../output/result_628.txt")

    v2 = np.loadtxt("C:/Users/.../PycharmProjects/.../output/result_" + str(txt).zfill(1) + ".txt")

    v3 = v1 - v2

    picture = np.sum(v3)

    print("picture", picture)

    outfn = newpath + "/result_" + str(txt) + ".txt"

    np.savetxt("outfn", picture, fmt='%1.3f')

Answer 1

您的 v3 可能只是一个标量值（由 numpy.sum() 返回）并且 numpy.savetxt() 需要一个类似数组的对象。

您可以执行 np.savetxt("outfn", [picture,], fmt='%1.3f') 或 zipa 建议的操作。但是您确定要使用一个标量值写入多个文件吗？

PS：我会将此放入评论中，但我还不允许:(

Answer 2

去：

import sys, os
import numpy as np
from PIL import Image

newpath = "C:/Users/.../PycharmProjects/.../output/differenza"

os.makedirs(newpath)

final = np.array()

for txt in range(162, 167):

    #fn = "C:/Users/.../PycharmProjects/.../output" + str(txt).zfill(0) + ".txt"

    v1 = np.loadtxt("C:/Users/.../PycharmProjects/.../output/result_628.txt")

    v2 = np.loadtxt("C:/Users/.../PycharmProjects/.../output/result_" + str(txt).zfill(1) + ".txt")

    v3 = v1 - v2

    picture = np.sum(v3)

    print("picture", picture)
    np.append(final, picture)


np.savetxt("outfn.txt", final, fmt='%1.3f')