I want to recode or bin multiple numeric columns as categorical values and summing the counts. The columns are ages by individual year from 18yrs to 90+ yrs with the cells containing summed totals by age. I want to create categories to reflect age cohorts and maintain the now cumulative count.
The aim is to categorise the ages in to the following cohorts:
'young_adults_18_29', 'younger_working_age_30_49', 'older_working_age_50_64', 'retirement_age_65_79', 'older_adults_80+'