12. Exploratory Data Analysis (EDA)
12.3 Crosstab and Correlation Caution
pd.crosstab(df["city"], df["festival"], values=df["amount"], aggfunc="sum", fill_value=0)
# Numeric association (not causation!):
df[["amount", "delivery_mins"]].corr()
Ravindra Bagale's Tip
Khup students corr() baghun “amount causes minutes” asa boltat. Correlation ≠ causation. Festival traffic donhi badalu shakte. Insight lihita cautious language vapra. Dhyan rakho!