clojask.extensions.reshape — com.github.clojure-finance/clojask 2.0.5

Reshape a clojask dataframe between wide and long layouts.

dcast clj

(dcast df
       output-dir
       id
       measure-name
       value-name
       vals
       &
       {:keys [vals-name] :or {vals-name vals}})

Reshape the clojask dataframe from long to wide: the rows that share the id columns collapse into one row with a column per entry of vals, filled from value-name where measure-name matches; missing entries are empty. The operations are appended to df itself.

melt clj

(melt df
      output-dir
      id
      measure
      &
      {:keys [measure-name value-name]
       :or {measure-name "measure" value-name "value"}})

Reshape the clojask dataframe from wide to long: every row becomes one row per measure column, holding the id columns, the measure's name and its value.