baseballr (version 0.3.3)

label_statcast_imputed_data: Label Statcast data as imputed

Description

Based on a series of heuristics, this function attempts to label Statcast data for which the launch angle and speed have been imputed.

Usage

label_statcast_imputed_data(statcast_df, impute_file = NULL,
  inverse_precision = 10000)

Arguments

statcast_df

A dataframe containing Statcast batted ball data

impute_file

A csv file giving the launch angle, launch speed, bb_type, events fields to label as imputed. if NULL then it's read from the `extdata` folder of the package.

inverse_precision

inverse of how many digits to truncate the launch angle and speed to for comparison. default is 10000, i.e. keep 4 digits of precision.

Value

A copy of the input dataframe with a new column "imputed" appended. imputed is 1 if launch angle and launch speed are likely imputed, 0 otherwise.

Examples

# NOT RUN {
#' \dontrun{
statcast_df = scrape_statcast_savant("2017-05-01", "2017-05-02")
statcast_df = label_statcast_imputed_data(statcast_df)
mean(statcast_df$imputed)
}
# }