It looks like that jupyter read my file DataP4. However, once i start using codes, it says that name DataP4 is not defined. what is the issue? tried to solve it but failed.

import seaborn as sns import statsmodels.formula.api as smf import statsmodels.api as sm import matplotlib.pyplot as plt import numpy as np from statsmodels.graphics.gofplots import qqplot_2samples, qqplot import scipy.stats In [32]: import pandas as pd In [34]: df = pd.read_csv('Datap4.csv') In [35]: \# Descriptive statistics for the Eight variables \# After cleaning the period 4 variables, 608 entries were used for the subsequent analysis. The games won over the years ranged In [48]: import io DataP4=pd.read_csv(io.BytesIo(uploaded ['DataP4.csv'])) NameError Traceback (most recent call last) Cell In[40], line 2 1 import io ----> 2 DataP4=pd.read_csv(io.BytesIo(uploaded['DataP4.csv'])) NameError: name "uploaded" is not defined In [39]: \#Skewness and Kurtosis for the numerical variables used in the analysis variables = DataP4[['Games_Won', 'Earned_Runs', 'Runs_Scored', 'Hits', 'Doubles', 'Strike_Outs', 'Stolen_Bases', 'Errors']] skewness = variables.skew() kurtosis = variables.kurtosis() stats_df = pd.DataFrame(\{'Skewness': skewness, 'Kurtosis': kurtosis }) print(stats_df) NameError Cell In[39], line 2 1 \#Skewness and Kurtosis for the numerical Variables used in the analysis >2 variables = Datap4[['Games_Won', 'Earned_Runs', 'Runs_Scored', 'Hits', 'Doubles', 'Strike_Outs', 'Stolen_Bases', 'Error s']] 3 skewness = variables.skew() 4 kurtosis = variables.kurtosis() NameError: name 'DataP4' is not defined Traceback (most recent call last)