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Analysts fill final-to-useful (FU) efficiency tables in a human-readable format provided by eta_fu_template() and write_eta_fu_template(). The templates are not tidy. However, most code uses in IEATools requires tidy data frames. This function converts an FU efficiency table with years in columns to a tidy data frame with years in a year column and eta_fu and phi_u values in a .values column. Identifiers for the variables are in the quantity column.

Usage

tidy_eta_fu_table(
  .eta_fu_table,
  year = IEATools::iea_cols$year,
  unit = IEATools::iea_cols$unit,
  e_dot_machine = IEATools::template_cols$e_dot_machine,
  e_dot_machine_perc = IEATools::template_cols$e_dot_machine_perc,
  quantity = IEATools::template_cols$quantity,
  maximum_values = IEATools::template_cols$maximum_values,
  .values = IEATools::template_cols$.values
)

Arguments

.eta_fu_table

The final-to-useful efficiency table to be tidied.

year, unit

See IEATools::iea_cols.

e_dot_machine, e_dot_machine_perc, quantity, maximum_values, .values

See IEATools::template_cols.

Value

A tidy version of .eta_fu_table.

Details

If .eta_fu_table is already tidy, it is returned unmodified.

Examples

load_eta_fu_data() %>% 
  tidy_eta_fu_table()
#> # A tibble: 234 × 9
#>    Country Method Energy.type Last.stage Machine       Eu.product Quantity  Year
#>    <chr>   <chr>  <chr>       <chr>      <chr>         <chr>      <chr>    <dbl>
#>  1 GHA     PCM    E           Final      Automobiles   MD         eta.fu    1971
#>  2 GHA     PCM    E           Final      Automobiles   MD         eta.fu    2000
#>  3 GHA     PCM    E           Final      Automobiles   MD         phi.u     1971
#>  4 GHA     PCM    E           Final      Automobiles   MD         phi.u     2000
#>  5 GHA     PCM    E           Final      Diesel cars   MD         eta.fu    1971
#>  6 GHA     PCM    E           Final      Diesel cars   MD         eta.fu    2000
#>  7 GHA     PCM    E           Final      Diesel cars   MD         phi.u     1971
#>  8 GHA     PCM    E           Final      Diesel cars   MD         phi.u     2000
#>  9 GHA     PCM    E           Final      Diesel trucks MD         eta.fu    1971
#> 10 GHA     PCM    E           Final      Diesel trucks MD         eta.fu    2000
#> # ℹ 224 more rows
#> # ℹ 1 more variable: .values <dbl>