Version 2.1.0

• Function fix: standardize warning message for columns found in key but not data more succinctly
• Test update: unit test update for ggplot2 version 4.0.0

Version 2.0.0

There are no ERRORs, WARNINGs, or NOTEs returned by devtools::check(). Changes from the preceding version are as follows:

• Removed function: make_json. The most critical dependency of this function is being archived and a suitable replacement cannot be found. Consider making a simple CSV of information rather than a JSON
• New function: check_key makes sure a column key is properly formatted to work with ltertools::harmonize and removes rows where no "tidy_name" is specified
• New function: standardize standarizes a single dataset (from a list) with the provided key object
• Improvement: harmonize now runs in approximately half the time for large (i.e., >5 MB) raw data files. No change to function inputs or outputs, just increased efficiency

Version 1.2.0

There are no ERRORs, WARNINGs, or NOTEs returned by devtools::check().

• New function: expand_key generates rows for a column key for only raw data files that are not already in an existing key or in an existing harmonized data table

Version 1.1.0

There are no ERRORs, WARNINGs, or NOTEs returned by devtools::check().

New function: make_json creates a JSON containing name/value pairs from a named vector. Optionally adds the JSON file name to the '.gitignore' (if one can be found in the working directory)
New function: solar_day_info identifies sunrise, sunset, solar noon, and day length for all dates within a user-specified range at particular coordinates
Function update: harmonize now includes new defensive warning/error checks with informative messages for likely sources of error
General improvement: unit tests added for all functions currently in package. Likely limited impact on users except better adherence to best practice will make for a stronger package in the long run

Version 1.0.0

First version of ltertools available on CRAN. There are no ERRORs, WARNINGs, or NOTEs returned by devtools::check().

• New function: read -- reads in all data files in a particular folder and stores them in a list
• New function: begin_key -- creates the start of a "column key" for data harmonization
• New function: harmonize -- performs column key-based harmonization of raw data
• New function: cv -- calculates coefficient of variation for a vector of numbers
• New function: convert_temp -- converts temperature values from one specified unit to another
• New dataset: lter_sites -- includes primary habitat, latitude/longitude coordinates, and funding start/end years for every site currently in the network
• New function: site_timeline -- creates a ggplot2-style timeline of all sites that meet the user-specified criteria (for site code and/or habitat)