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Python 列表索引超出范围-卡方检验_Python_Python 3.x_Random_Jupyter Notebook - Fatal编程技术网

Python 列表索引超出范围-卡方检验

Python 列表索引超出范围-卡方检验,python,python-3.x,random,jupyter-notebook,Python,Python 3.x,Random,Jupyter Notebook,在此处输入代码我创建了LCG生成器,并尝试对unimormity进行卡方检验 从生成器中,我选择100个随机数: np.seterr(over='ignore') a = np.uint32(1664525) c = np.uint32(1013904223) seed = np.uint32(1) rng = LCG(seed, a, c) q = [rng.next() for _ in range(0, 100)] print(q) data_set = q 接下来,我尝试用这种方

在此处输入代码
我创建了LCG生成器,并尝试对unimormity进行卡方检验

从生成器中,我选择100个随机数:

np.seterr(over='ignore')

a = np.uint32(1664525)
c = np.uint32(1013904223)
seed = np.uint32(1)

rng = LCG(seed, a, c)
q = [rng.next() for _ in range(0, 100)]
print(q)
data_set = q 
接下来,我尝试用这种方法进行卡方检验:

def chi_square_uniformity_test():

chi_sq_value = 0.0
num_samples = 10000
degrees_of_freedom = num_samples - 1
data_set
observed_val = 1 

expected_val = num_samples/10

for observed_val in data_set:

    chi_sq_value += ( pow((expected_val - data_set[observed_val]), 2)/expected_val )

return chi_sq_value
它给出了以下错误-

IndexError                                Traceback (most recent call last)
<ipython-input-43-675902c0a85e> in <module>
----> 1 chi_square_uniformity_test()

<ipython-input-42-3960c5593af3> in chi_square_uniformity_test()
     30     for observed_val in data_set:
     31         #print "Observed value is: " + observed_val
---> 32         chi_sq_value += ( pow((expected_val - data_set[observed_val]), 2)/expected_val )
     33 
     34     # Coming out of this loop, we'll have a chi-squared test statistic

IndexError: list index out of range
索引器错误回溯(最近一次调用)
在里面
---->1卡方均匀性试验()
卡方均匀性检验()
30对于数据集中的观测值:
31#打印“观察值为:“+观察值”
--->32 chi_sq_值+=(pow((预期值-数据集[观察值]),2)/预期值)
33
34#从这个循环中,我们将得到卡方检验统计数据
索引器:列表索引超出范围

对于数据集中的观察值:
迭代
数据集
的各个元素,而不是它们的索引,因此
数据集[观察值]
尝试使用
数据集
的一个元素对
数据集
进行索引,而该索引可能不存在

例如:

>>> for x in [1000]:
...  print(x)  # x == 1000
...  print([1000][x])  # index 1000 clearly doesn't exist
... 
1000
Traceback (most recent call last):
  File "<stdin>", line 3, in <module>
IndexError: list index out of range
chi_sq_value += ( pow((expected_val - observed_val), 2)/expected_val )