presc_data_summary: Prescription dataset summary
In amarshall1/prescribeR: Quantify Exposure Based On Routine Prescribing Data

Description Usage Arguments Value Examples

Function produces a high-level summary of a data frame, either the number of prescriptions and date of the first and last prescription for each patient or the total number of prescriptions and patients, the median and IQR prescriptions per patient and the dates of the first and last prescriptions across the data

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presc_data_summary(df, drug = ".", summary = TRUE,
  patient_id_col = "patient_id", drug_id_col = "drug_id",
  presc_date_col = "presc_date_x", date_format)

`df`	a data frame containing prescribing records to be analysed - records must contain at least a patient ID, a drug identifier and a prescription date
`drug`	a string containing a drug ID to be used to limit the prescribing data to the drug(s) of interest, accepts regular expressions
`summary`	logical, if FALSE returns data on individual patients, if TRUE returns summary values
`patient_id_col`	a string, the name of the column in `df` containing the patient IDs
`drug_id_col`	a string, the name of the column in `df` containing the drug IDs
`presc_date_col`	a string, the name of the column in `df` containing the prescption date
`date_format`	a string, the format of the dates in `df`

a data frame containing either a per patient summary of the data or a summary of the whole dataset, depending on the fvalue of summary

presc_data_summary(synth_presc, summary = FALSE, drug_id_col = "approved_name",
presc_date_col = "presc_date", date_format = "%Y-%m-%d")
presc_data_summary(synth_presc, drug = "SIMVASTATIN", summary = TRUE,
drug_id_col = "approved_name",
presc_date_col = "presc_date", date_format = "%Y-%m-%d")