**Daily update | 12 February, 2023**

# StackExchange

#### In some sense, is linear regression an estimate of an estimate of an estimate?

**Source:** stats**Views:** 356**Score:** 6**Tags:** regression linear-model estimators

#### Can PC1 explain more than 90% of variance?

**Source:** stats**Views:** 38**Score:** 3**Tags:** pca

#### KNN does not take into account the actual magnitude of the distance

**Source:** stats**Views:** 32**Score:** 3**Tags:** machine-learning supervised-learning k-nearest-neighbour

#### Calculating similarty/resemblance of time series data

**Source:** stats**Views:** 13**Score:** 1**Tags:** time-series correlation similarities

#### Centering variables involved in an interaction changed results, how is this correctly interpreted?

**Source:** stats**Views:** 10**Score:** 1**Tags:** regression interaction centering