**Daily update | 09 April, 2022**

# StackExchange

#### How to apply the formula for Shannon entropy to a 4-sided die?

**Source:** stats**Views:** 241**Score:** 5**Tags:** machine-learning entropy

#### AUROC too high in image classification

**Source:** stats**Views:** 137**Score:** 3**Tags:** machine-learning neural-networks classification cross-validation

#### Is it wise to always `StandardScaler()` features? [SOLVED]

**Source:** datascience**Views:** 29**Score:** 2**Tags:** python feature-extraction feature-scaling

#### Prove that $L=\{a^ib^jc^k\ |\ i\neq j,\ i\neq k,\ j\neq k\}$ satisfies the pumping lemma

**Source:** cs**Views:** 8**Score:** 1**Tags:** formal-languages context-free

#### Multilevel CFA in R (lavaan); Error: No variance within some clusters

**Source:** stats**Views:** 11**Score:** 1**Tags:** r multilevel-analysis confirmatory-factor