Convert MMWR week to calendar month

mmwr_week_to_month calculates the calendar month from the patient_mmwr_week and patient_mmwr_year fields of the EpiTrax data. The result is stored in the month column and the patient_mmwr_week column is removed.

Usage

mmwr_week_to_month(data)

Arguments

data

Dataframe. Must contain columns:

• patient_mmwr_year (integer)

• patient_mmwr_week (integer)

Value

The input data frame with an added "month" column (integer 1-12) and removed patient_mmwr_week column.

Examples

df <- data.frame(
 patient_mmwr_year = 2020L,
 patient_mmwr_week = 1L,
 patient_disease = "A"
)
mmwr_week_to_month(df)
#>   patient_mmwr_year patient_disease month
#> 1              2020               A     1