Lightweight Utilities for 'DIZ' R Package Development.

DIZtools

The R package DIZtools provides utility functions used for the R package development infrastructure inside the data integration centers (‘DIZ’) to standardize and facilitate repetitive tasks such as setting up a database connection or issuing notification messages and to avoid redundancy.

:bulb: DIZtools contains all “lightweighted” functions of DIZutils making it a lot quicker to install, while DIZutils has a lot of dependencies and system requirements.

Installation

You can install DIZtools directly from CRAN:

install.packages("DIZtools")

The development version can be installed using

install.packages("remotes")
remotes::install_github("miracum/misc-diztools", ref = "dev")

Exported functions

• assign_to_R_env(): Add variable to R environment (in contrast to system environment).
• check_if_unique_rows(): Takes a data.table dataset and checks if for each unique element in a specified column there is exaclty one row.
• clean_path_name(): Clean paths to surely have a tailing slash or not.
• clear(): Clean the console and environment-variables.
• close_all_connections(): Unset/close all open connections.
• dt_row_to_string(): Get the content of a data.table row in print-ready format.
• equals2(): Robust compare two elements and return true if both elements are the same. False otherwise. No NA or NULL.
• feedback(): Function to feedback messages either to the user and/or to the console and to the logfile.
• file_lines_to_list(): Read in lines from a file and store it in a list.
• firstup(): Converts the first letter of the input string to uppercase.
• format_POSIXct(): Formats a given POSIXct timestamp without the need of manually specifing format parameters.
• get_config(): Reads a config yaml file and return the value for a given key.
• get_current_timestamp(): Quickly get the current time stamp without the need to handle format-options etc.
• is_date_format(): Checks if a string matches a given date format.
• is.empty(): Check for empty/NA/NULL/NaN/etc. values.
• notin(): notin helper function. Opposite of in function.
• number_to_position(): Converts an integer number to its “verbal position”. 1 –> “1st”, 2 –> “2nd”, 3 –> “3rd”, 4 –> “4th”, …
• paste_pct_sum(): Get the percentage of two values pretty formatted.
• paste2(): Normal paste function with additional collapse_last argument.
• pretty_timestamp(): Quickly get a pretty timestamp without need to handle format-options etc.
• rep2(): Repeat something with the ability to also collapse the output.
• robust_round(): Round numbers without problems.
• setdiff_all(): Get the difference of two vectors in both directions.
• setenv_file(): Set all variables of a .env file to the system environment.
• setenv2(): Assign variables to the system environment.
• string_replacements(): Clean string with a given set of replacements.
• time_diff_print(): Calculate time difference of two timestamps, round the value and return a string with suiting unit.
• trim.space(): Trim Spaces of a string.
• vgsub(): Vectorised string replacement.

Internal functions

:bulb: Use with care. Can be used by typing DIZtools:::internal_function_name() (<- using three :). Not recommended.

• dot_helper()
• zzz()

More Infos

• about MIRACUM: https://www.miracum.org/
• about the Medical Informatics Initiative: https://www.medizininformatik-initiative.de/de/start.