Question

直到上周，我有一段代码可以计算出一系列事件发生的几率，但是从本周开始，该代码将不起作用。

代码如下：

import numpy as np
import pysal
import os

dbf = pysal.open('file.csv','r')

y = np.array([dbf.by_col('result')]).T

names_to_extract = ['dist', 'angle']
x = np.array([dbf.by_col(name) for name in names_to_extract]).T

id = np.array([dbf.by_col('incidenceId')]).T

model = pysal.spreg.probit.Probit(y, x, w=None, name_y='result', name_x=['dist','angle'], name_w=None, name_ds=None)

fin = np.column_stack((id, model.y, model.predy))

os.chdir("/destinyfolder")

np.savetxt('xg.csv', fin, delimiter=',', fmt='%d, %d, %f')

我收到此错误：

/usr/local/lib/python3.7/site-packages/pysal/__init__.py:65: VisibleDeprecationWarning: PySAL's API will be changed on 2018-12-31. The last release made with this API is version 1.14.4. A preview of the next API version is provided in the `pysalnext` package. The API changes and a guide on how to change imports is provided at https://migrating.pysal.org
  ), VisibleDeprecationWarning)
Traceback (most recent call last):
  File "xg.py", line 14, in <module>
    model = pysal.spreg.probit.Probit(y, x, w=None, name_y='result', name_x=['dist','angle'], name_w=None, name_ds=None)
  File "/usr/local/lib/python3.7/site-packages/pysal/spreg/probit.py", line 807, in __init__
    n = USER.check_arrays(y, x)
  File "/usr/local/lib/python3.7/site-packages/pysal/spreg/user_output.py", line 359, in check_arrays
    if not spu.spisfinite(i):
  File "/usr/local/lib/python3.7/site-packages/pysal/spreg/sputils.py", line 267, in spisfinite
    return np.isfinite(a.sum())
  File "/usr/local/lib/python3.7/site-packages/numpy/core/_methods.py", line 36, in _sum
    return umr_sum(a, axis, dtype, out, keepdims, initial)
TypeError: cannot perform reduce with flexible type

通常，我只得到DeprecationWarning，但是代码有效。从今天起，该代码将无法使用。考虑到我当前正在使用pysal 1.14.4，numpy 1.16.2和scipy 1.2.1。我尚未将代码更新为pysal 2.0，因为我不知道如何将代码移植到新版本（这就是为什么我首先获得DeprecationWarning的原因）。

这是文件：file.csv

您能帮助我完成这项工作吗？

Answer 1

x中的条目是字符串，请将其转换为float：

        else {  /* name fits, concatenate space and lastName */
            strcat (fullName, " ");
            strcat (fullName, buf);
            available -= length + 1;
            break;
        }

这首先会失败，因为file.csv中的值为“ NULL”，您需要过滤掉这些值或指定应将其转换为哪种浮点值。

在发布问题之前，请先尝试通过简单的Google搜索来立即获得答案。如果将这个错误与“ pysal 1.14.4”一起使用google搜索，您将立即找到此解决方案：

TypeError: cannot perform reduce with flexible type

突然，Probit无法在PySAL（1.14.4）上运行

1 个答案: