The goal of ltertools is to centralize the R functions created by members of the Long Term Ecological Research (LTER) community. Many of these functions likely have broad relevance that expands beyond the context of their creation and this package is an attempt to share those tools and limit the amount of âre-inventing the wheelâ that we each do in our own silos.
The conceptual theme of functions in ltertools is necessarily broad given the scope of the community we aim to serve. That said, the identity of this package will likely become more clear as we accrue contributed functions. In the meantime, please do not hesitate to add or request a function for fear that it doesnât âfitâ this package. That may eventually become a concern but at this stage we are aiming to house all extant functions regardless of their relatedness to one another.
You can install the development version of ltertools from GitHub with:
# install.packages("devtools")
devtools::install_github("lter/ltertools")As functions are added to the package they will be briefly summarized below and attributed to their author(s)
Harmonizationbegin_key â creates the first two columns of a âcolumn keyâ andâif the optional guess_tidy argument is set to TRUEââguessesâ at what the tidy names âshould beâ
harmonize â performs column key-based harmonization. We strongly recommend using the begin_key to start the creation of a column key to make sure the formatting requirements of this function are met
expand_key â makes a correctly-formatted section of a column key for only those raw data files not already in the existing key object and/or in the harmonized data table
read â Reads in all files of specified types in a particular folder and stores them as elements in a list. List element names are the respective file names. Currently supports CSV, TXT, XLS, and XLSX file formats
solar_day_info â Identify sunrise, sunset, solar noon, and day length for all dates within a user-specified range at particular coordinates. Function concept contributed by Miguel C. Leon
cv â Calculate coefficient of variation (CV) from a vector of numbers
convert_temp â Convert temperature values from one set of units to another
site_timeline â Create a timeline of sites that meet user-specified site code and/or habitat criteria. Uses built in lter_sites data object that includes much useful site informationSee CONTRIBUTING.md for specifics but at a glance:
To contribute one of your functions in exchange for authorship credit: open a GitHub issue
To suggest minor fixes or point out bugs: open a GitHub issue
To implement major / structural changes: fork the repository, add your content to the dev folder, and open a pull request when you are finished
ltertools will maintain a consistent âfeelâ and style of functions but we (the maintainers) are happy to perform these edits on your behalf. If youâd like to take care of this yourself (completely optional!) you are welcome to do so. Please see CONTRIBUTING.md for a specific style guide.
If you would like to contribute a function that is similar to a function that already exists in ltertools please do not hesitate! In the event that this happens, the following steps will be followed:
The functions will be combined to preserve the earlier functionâs elements while expanding to include the maximum number of novel features (i.e., arguments / options)
Both function authors will be credited in the combined functionâs description and in this README (see above)
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