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# Evaluation

After matching, evaluate covariate balance before causal analysis.

## Categorical Covariates

```python
cat_table = matcher.compare_categorical(return_table=True, plot_result=True)
print(cat_table)
```

Interpretation:

- check before/after p-value shifts
- look for reduced proportional differences after matching

## Continuous Covariates

```python
cont_table = matcher.compare_continuous(return_table=True, plot_result=True)
print(cont_table)
```

Interpretation:

- compare KS statistics and grouped permutation test p-values
- monitor standardized mean/median differences pre vs post matching

## Single Variable Proportion Test

```python
print(matcher.prop_test("grade"))
```