medcodes_to_read: Translate CPRD medcodes to Read/Oxmis
In rEHR: Manipulating and Analysing Electronic Health Record Data

Description Usage Arguments Details Value

This function accepts a data frame with a column for CPRD medcodes and merges with a medical lookup table to give columns for Read/OXMIS codes and optional descriptions

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medcodes_to_read(medcodes_data, lookup_table, medcodes_name = "medcode",
  lookup_readcodes = "readcode", lookup_medcodes = "medcode",
  description = TRUE)

`medcodes_data`	a dataframe with a column matching medcodes_name
`lookup_table`	a dataframe with columns matching lookup_readcodes and lookup_medcodes
`medcodes_name`	character name of the CPRD medcodes column in medcodes_data
`lookup_readcodes`	character name of the Read codes column in the lookup_table
`lookup_medcodes`	character name of the CPRD medcodes column in the lookup_table
`description`	logical Should description and other categories from the lookup table also be included?

Note that if the names of the medcodes columns are different in the data and the lookup table, the name in the data is retained To maintain sanity, a warning will be given to inform of are any name conflicts between the input data and the lookup

a data frame matching the input medcodes_data with the Read codes and optional description columns merged in.

rEHR documentation built on Jan. 23, 2017, 1 p.m.