All functions
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anova()
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Analysis of Variance |
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assign_limits()
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Function to assign default Groundwater Protection Standards |
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boxcox_transform()
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Boxcox transformation |
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boxplot()
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Boxplot function |
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conc_to_meq()
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Function to convert chemical data from mg/L to meq/L |
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conf_int()
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Function to calculate confidence intervals |
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connect_manages3()
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Connect to a MANAGES 3.x Site.mdb database |
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connect_manages4()
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Function to connect to MANAGES 4.0 database |
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constituents()
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Function to return a list of all the constituents |
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corr_plot()
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Create a correlation plot |
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create_database()
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Function to create a new database for water quality data |
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default_gwps
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U.S. EPA Maximum Contaminant Level and RSL Lookup Table |
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delete_datebase()
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Function to delete an existing water quality database |
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dixon_test()
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Dixon test for outliers |
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est_dist()
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Function to return either normal, lognormal, or non-parametric
distribution |
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est_dist_censored()
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Function to return either normal, lognormal, gamma, or non-parametric
distribution estimate |
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from_csv()
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function to read data in csv format and convert date to POSIXct with lubridate |
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from_excel()
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function to read data in excel format |
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get_theilsen()
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Function to get slope and intercept from Theil-Sen slope for plotting |
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grubbs_test()
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Grubb's test for outliers |
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gw_data
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Example groundwater quality data |
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include_dup()
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Function to include duplicate samples |
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indiana_data
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Groundwater quality data for the state of Indiana |
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join_lt()
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Function to join columns of lt_measure and sample results |
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kendall_trend()
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Kendall Trend |
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manager()
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manager |
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name_units()
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Function to return a column of parameter name with units |
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nth_date()
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Function to find the date for next n samples |
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ohio_data
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Groundwater quality data for the state of Ohio |
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percent_gt()
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Calculate the percentage of right censored data |
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percent_lt()
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Calculate the percentage of left censored data |
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piper_plot()
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Create a piper diagram |
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piper_time_html()
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Function to create an aminated Piper plot and save to html |
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piper_time_plot()
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Function to create an animated Piper plot through time
using the animation package |
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pred_int()
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Function to calculate prediction interval |
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pred_int_sim()
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Function to calculate simultaneous prediction interval |
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read_manages3()
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Function return a MANAGES 3.x Site.mdb database in memory |
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read_manages4()
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Function to read MANAGES 4.0 database |
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remove_dup()
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Function to remove duplicate samples
Example: If you have wells named MW-1 and another named MW-1 Duplicate
this function will remove the MW-1 Duplicate sample |
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replace_missing()
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Function to replace missing values |
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rosner_test()
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Rosner's test for outliers |
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sample_locations()
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Function to return a list of all the location IDs |
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schoeller_plot()
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Schoeller Diagram |
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series_plot()
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This function plots multiple groundwater data time series by location,
or constituent |
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set_background()
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Function to return a column of background data |
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set_censored()
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Function to ensure non-detect data are set to either the PQL, or RL |
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set_proposed_background()
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Function to return a column of the proposed background data |
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simplify_param_name()
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Helper function to split parameter names |
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start_date()
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Function to find the start of sampling for a well constituent pair |
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stiff_plot()
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Stiff Diagram |
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stiff_time_html()
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Function to create an animated Stiff Diagram and save to html |
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stiff_time_plot()
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Function to create an animated Stiff Diagram |
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summary()
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Summary function |
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to_censored()
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Function to convert character column of less than, or greater than
symbols to logical vectors and return a data frame |
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to_spatial()
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function to convert data to sf object |
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to_wide()
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Helper function to cast data frame to wide format |
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tol_int()
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Function to calculate tolernace intervals |
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tukey_outlier()
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Tukey's test for outliers |
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update_background()
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Function to update background data |
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write_event_summary()
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Function to export summary table for a sampling event |
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write_excel()
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Function to export data from manages to excel. Each sampling location
is saved to a tab. |