anasb

def plot_corr(df, size=10):
    '''Function plots a graphical correlation matrix for each pair of columns in the dataframe.
    Input:
        df: pandas DataFrame
        size: vertical and horizontal size of the plot'''

    corr = df.corr()
    fig, ax = plt.subplots(figsize=(size, size))
    cax = ax.matshow(corr)
    plt.xticks(range(len(corr.columns)), corr.columns, rotation=90)