Function reference • naryn

Extract
`emr_extract()`	Returns evaluated track expression
`emr_dist()`	Calculates distribution of track expressions
`emr_screen()`	Finds Id-Time points that match track expression
`emr_annotate()`	Annotates id-time points table
`emr_cor()`	Calculates correlation statistics for pairs of track expressions
`emr_quantiles()`	Calculates quantiles of a track expression
`emr_summary()`	Calculates summary statistics of track expression
`emr_ids_coverage()`	Returns ids coverage per track
`emr_ids_vals_coverage()`	Returns ids coverage per value track
`emr_monthly_iterator()` `emr_yearly_iterator()`	Create an iterator that goes every year/month
Database
`emr_db.connect()` `emr_db.init()` `emr_db.ls()`	Initializes connection with Naryn Database
`emr_db.reload()`	Reloads database
`emr_db.subset()`	Defines an ids subset
`emr_db.subset.ids()`	Returns the ids that constitute the current ids subset
`emr_db.subset.info()`	Returns information about the current subset
`emr_db.unload()`	Unload all tracks from naryn database
Track
`emr_track.addto()`	Adds new records to a track
`emr_track.attr.export()`	Returns attributes values of tracks
`emr_track.attr.get()`	Returns the value of the track attribute
`emr_track.attr.rm()`	Deletes a track attribute
`emr_track.attr.set()`	Assigns a value to the track attribute
`emr_track.create()`	Creates a track from a track expression
`emr_track.dbs()` `emr_track.current_db()`	Returns a vector of db ids which have a version of the track
`emr_track.exists()`	Checks whether the track exists
`emr_track.ids()`	Returns track ids
`emr_track.import()`	Imports a track from a file or data-frame
`emr_track.info()`	Returns information about the track.
`emr_track.logical.create()`	Creates a logical track
`emr_track.logical.exists()`	Is a track logical
`emr_track.logical.info()`	Returns information about a logical track
`emr_track.logical.rm()`	Deletes a logical track
`emr_track.ls()` `emr_track.global.ls()` `emr_track.user.ls()` `emr_track.logical.ls()`	Returns a list of track names
`emr_track.mv()`	Moves (renames) a track
`emr_track.percentile()`	Returns track percentile of the values
`emr_track.readonly()`	Gets or sets "read-only" property of a track
`emr_track.rm()`	Deletes a track
`emr_track.unique()`	Returns track values
`emr_track.var.get()`	Returns value of a track variable
`emr_track.var.ls()`	Returns a list of track variables for a track
`emr_track.var.rm()`	Deletes a track variable
`emr_track.var.set()`	Assigns value to a track variable
Virtual track
`emr_vtrack.attr.src()` `emr_vtrack.attr.func()` `emr_vtrack.attr.params()` `emr_vtrack.attr.keepref()` `emr_vtrack.attr.time.shift()` `emr_vtrack.attr.id.map()` `emr_vtrack.attr.filter()`	Get or set attributes of a virtual track
`emr_vtrack.clear()`	Clear all virtual tracks from the current environment
`emr_vtrack.create()`	Creates a new virtual track
`emr_vtrack.create_from_name()`	Create a virtual track from an automatically generated name
`emr_vtrack.exists()`	Checks whether the virtual track exists
`emr_vtrack.info()`	Returns the definition of a virtual track
`emr_vtrack.ls()`	Returns a list of virtual track names
`emr_vtrack.name()`	Generate a default name for a virtual track
`emr_vtrack.rm()`	Deletes a virtual track
Filter
`emr_filter.attr.src()` `emr_filter.attr.keepref()` `emr_filter.attr.time.shift()` `emr_filter.attr.val()` `emr_filter.attr.expiration()`	Get or set attributes of a named filter
`emr_filter.clear()`	Clear all filters from the current environment
`emr_filter.create()`	Creates a new named filter
`emr_filter.create_from_name()`	Create a filter from an automatically generated name
`emr_filter.exists()`	Checks whether the named filter exists
`emr_filter.info()`	Returns the definition of a named filter
`emr_filter.ls()`	Returns a list of named filters
`emr_filter.name()`	Generate a default name for a naryn filter
`emr_filter.rm()`	Deletes a named filter
`emr_filters.info()`	Returns the filter definition of named filters given a filter expression
Time
`emr_date2time()`	Converts date and hour to internal time format
`emr_time()` `hours()` `hour()` `days()` `day()` `weeks()` `week()` `day()` `months()` `month()` `years()` `year()`	Convert time periods to internal time format
`emr_time2date()`	Convert from internal time to year, month, day, hour
`emr_time2dayofmonth()`	Converts time from internal format to a day of month
`emr_time2hour()`	Converts time from internal format to an hour
`emr_time2month()`	Converts time from internal format to a month
`emr_time2year()`	Converts time from internal format to a year
Track attributes
`emr_track.attr.export()`	Returns attributes values of tracks
`emr_track.attr.get()`	Returns the value of the track attribute
`emr_track.attr.rm()`	Deletes a track attribute
`emr_track.attr.set()`	Assigns a value to the track attribute
Track variables
`emr_track.var.get()`	Returns value of a track variable
`emr_track.var.ls()`	Returns a list of track variables for a track
`emr_track.var.rm()`	Deletes a track variable
`emr_track.var.set()`	Assigns value to a track variable
Entries
`emr_entries.get()`	Get an entry
`emr_entries.get_all()`	Get all entries
`emr_entries.ls()`	List entries
`emr_entries.reload()`	Reload entries from disk
`emr_entries.rm()`	Remove an entry
`emr_entries.rm_all()`	Remove all entries
`emr_entries.set()`	Set an entry
Other
`emr_download_example_data()`	Download example database
`string_to_var()`	Create a syntactically valid variable name from a string
`var_to_string()`	Decode a variable created by string_to_var
`naryn-package` `naryn`	Toolkit for medical records data analysis

Reference

Extract

Database

Track

Virtual track

Filter

Time

Track attributes

Track variables

Entries

Other