dataframe exploratory analysis
df.head()
df.tail()
df.shape
df.T
df.columns
df.info
df.types
df.Column1.unique()
df.mean(axis=1)[0]
df.corr()
df = df.sort_values(by = "ColumnName", ascending=False)
df.corr()
https="://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.html"