在 Python 中创建交叉表时出错。 TypeError：列表索引必须是整数或切片，而不是元组

Question

I'm trying to do a Crosstab and I'm getting the error TypeError: list indices must be integers or slices, not tuple

I have already including parenthesis and brackets, but nothing works.

This is the code

y1 = np.array([df_train[df_train['dep_delayed_15min'] == 'Y']['UniqueCarrier'].value_counts().values])
y2 = np.array([df_train[df_train['dep_delayed_15min'] == 'N']['UniqueCarrier'].value_counts().values])
y3 = y1+y2
y4 = y1/y3
y5 = y2/y3
y6 = set(df_train['UniqueCarrier'])

d = {'UniqueCarrier': [y6], 'Perc_Y': [y4], 'Perc_N': [y5]}
df = pd.DataFrame([d])

df.head()

pd.crosstab[df['UniqueCarrier'], df['Perc_Y'], df['Perc_N']]

This is what I get form df.head() that is not what I need for the next step, that is creating the crosstab with the numbers.

    UniqueCarrier   Perc_Y  Perc_N
0   [{CO, FL, UA, DH, NW, B6, AS, DL, HP, EV, AA, ...   [[[0.21343323166688768, 0.1879379910809089, 0....   [[[0.7865667683331123, 0.8120620089190911, 0.8...

Answer 1

Unless I'm very confused pd.crosstab is a function so should be invoked with parentheses

pd.crosstab(df['UniqueCarrier'], df['Perc_Y'], df['Perc_N'])