numpy array2string应用于巨大的数组，跳过中心值，(...在中间) [英] numpy array2string applied on huge array, skips central values, ( ... in the middle )

问题描述

我有一个大小为(3、3、19、19)的数组，我应用了flatten来得到大小为3249的数组.

I have array of size (3, 3, 19, 19), which I applied flatten to get array of size 3249.

我不得不将这些值与其他一些数据一起写入文件，因此我做了以下操作以将数组转换为字符串.

I had to write these values to file along with some other data, so I did following to get the array in string.

np.array2string(arr.flatten(), separator=', ', suppress_small=False)

但是，当我写完文件后检查文件的内容时， 我注意到我在数组中间有,... ,，如下所示:

However when I checked the content of the files after write, I noticed that I have ,... , in the middle of the array as following

[ 0.09720755, -0.1221265 , 0.08671697, ..., 0.01460444, 0.02018792, 0.11455765]

[ 0.09720755, -0.1221265 , 0.08671697, ..., 0.01460444, 0.02018792, 0.11455765]

如何获取包含所有元素的数组字符串，以便潜在地将所有数据保存到文件中?

How can I get string of array with all the elements, so I can potentially get all data to a file?

推荐答案

据我了解array2string，它只是用于返回数组的"nice"字符串表示形式.

As far as I understand array2string, it's just for returning a "nice" string representation of the array.

numpy.ndarray.tofile对于您的目的可能是更好的选择-

numpy.ndarray.tofile might be a better option for your purposes - https://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.tofile.html. It should write the full contents of the array to the given file.

with open("test.bin", "wb") as f:
    arr.flatten().tofile(f)

您当然可以使用numpy.fromfile读回它-

And you can of course read it back with numpy.fromfile - https://docs.scipy.org/doc/numpy/reference/generated/numpy.fromfile.html.

with open("test.bin", "rb") as f:
    arr = numpy.fromfile(f)

这篇关于numpy array2string应用于巨大的数组，跳过中心值，(...在中间)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！