Calculate RMSE

Calculate the Root Mean Square Error (RMSE). The RMSE is the standard deviation of the residuals (prediction errors) and therefore an indicator of how precise the prediction of a specific vote actually is.

Usage

rmse(prediction, observation, na.rm = TRUE)

Arguments

prediction

Predicted value.

observation

Oserved value.

na.rm

Remove NA values, defaults to TRUE

Value

A vector of numeric values.

Examples

# Set seed for reproducibility
set.seed(42)

pred_data <- predict_votes(c("Eidg1", "Kant1"), vote_data, exclude_votes = TRUE)

pred_data$rmse <- rmse(pred_data$pred, pred_data$real)