Observed PROM

Observed PROM using mean for each mean_group. Used to create observed data frame which is used in prom_trends.

observed(
  outcome,
  data1,
  data2,
  data3,
  data4,
  year_period1 = "2008_2009",
  year_period2 = "2010_2011",
  year_period3 = "2012_2013",
  year_period4 = "2014_2015",
  mean_group = "Unit"
)

Arguments

outcome	PROM outcome variable.
data1, data2, data3, data4	Data frames containing data for period 1/2/3/4
year_period1, year_period2, year_period3, year_period4	Period 1/2/3/4.
mean_group	Group to take mean on.

Value

Data frame containing observed PROM for four year periods.