Man pages for rEHR
Manipulating and Analysing Electronic Health Record Data
| add_to_database | Adds a series of files to a database |
| append_to_temp_table | Appends rows to a temporary table |
| build_cohort | Converts a longitudinal data set from e.g. 'prev_terms' to a... |
| build_date_fn | Function to build start/enddate helper fuctions |
| clinical_codes | Clinical codes for 17 QOF conditions, smoking and HbA1c |
| compress | Compresses a dataframe to make more efficient use of... |
| convert_dates | converts date fields from ISO character string format to R... |
| cprd_uniform_hba1c_values | Transforms hba1c values to mmol/mol |
| cut_tv | cut_tv - Cuts a survival dataset on a time varying variable |
| database | Wrapper for dbConnect |
| define_EHR | Construct an EHR_definition object. |
| definition_search | This function is used to build new definition lists based on... |
| drop_all_temp_tables | drops all temporary tables from the database |
| drop_temp_table | Checks if a temporary table exists and then deletes if it... |
| ehr_def | An example EHR_definition object for defining parameters for... |
| entity | A sample of 6 clinical tests and meaures used in UK primary... |
| expand_string | Reads strings and expands sections wrapped in dotted... |
| export_definition_search | Exports definition searches to an excel file |
| export_fn | Exports to a variety of formats based on the file type... |
| extract_keywords | Function to extract rows from a lookup table based on... |
| first_events | Selects the earliest event grouped by patient |
| flat_files | Exports flat files from the database. One file per practice |
| get_EHR_attribute | Return the value of an attribute in the .ehr environment |
| get_matches | Find matched controls for a set of cases |
| head.SQLiteConnection | head for 'SQLiteConnection' object |
| import_CPRD_data | Imports all selected CPRD data into an sqlite database |
| import_definitions | Imports definitions to be searched from a csv file into a... |
| last_events | Selects the earliest event grouped by patient |
| list_EHR_attributes | Lists all of the EHR attribute names in .ehr |
| match_case | Selected controls matching a list of variables from a case |
| match_on_index | Function for performing matching of controls to cases using... |
| medcodes_to_read | Translate CPRD medcodes to Read/Oxmis |
| MedicalDefinition | Constructor function for MedicalDefinition class |
| patients_in_window | Select patients alive and registered between certain dates |
| patients_per_medcode | Produce a dataset of CPRD medcodes with frequencies of... |
| prev_terms | This function adds columns enabling one to calculate... |
| prev_totals | Calculates the prevalence totals for the output of a data... |
| print.EHR_definition | Tools for describing EMR_description objects. |
| print.MedicalDefinition | Basic print method for medical definition classes |
| product | A sample of 500 medicines used in UK primary care |
| qof_15_months | Helper function providing startdate and enddate for a given... |
| qof_years | Helper function providing startdate and enddate for a given... |
| random_dates | Generates random dates between a start and end day. |
| read_to_medcodes | Translate Read/Oxmis codes to CPRD medcodes |
| read_zip | Reads a zipped data file to a dataframe |
| rEHR | The rEHR package. |
| repsample_example | An example dataset to demonstrate the repsample function.... |
| select_by_year | Runs a series of selects over a year range and collects in a... |
| select_events | Extracts From the database |
| set_CPRD | Sets EHR metadata to CPRD format When this is run, most... |
| set_EHR_attribute | Sets the value of an attribute in the .ehr environment |
| simulate_ehr_consultations | Generates simulated GP consultation tables. |
| simulate_ehr_events | Generate simulated events tables |
| simulate_ehr_patients | Generate a dataframe of simulated patients with exit dates... |
| simulate_ehr_practices | generates a simulated dataframe of primary care practices in... |
| standard_years | Helper function providing startdate and enddate for a given... |
| surv_sims | Function to simulate survival data. |
| temp_location | Sets location of the db temporary store for temporary tables |
| temp_table | Creates a temporary table in the database |
| to_stata | Compresses a dataframe and saves in stata format. Options to... |
| to_temp_table | Send a dataframe to a temporary table in the database |
| wrap_sql_query | combines strings and vectors in a sensible way for select... |
