Tools for plotting and analyzing environmental data

anova | Analysis of Variance |

assign_limits | Function to assign default Groundwater Protection Standards |

boxcox_transform | Boxcox transformation |

boxplot | Boxplot function |

conc_to_meq | Function to convert chemical data from mg/L to meq/L |

conf_int | Function to calculate confidence intervals |

connect_manages3 | Connect to a MANAGES 3.x Site.mdb database |

connect_manages4 | Function to connect to MANAGES 4.0 database |

constituents | Function to return a list of all the constituents |

corr_plot | Create a correlation plot |

create_database | Function to create a new database for water quality data |

default_gwps | U.S. EPA Maximum Contaminant Level and RSL Lookup Table |

delete_datebase | Function to delete an existing water quality database |

dixon_test | Dixon test for outliers |

est_dist | Function to return either normal, lognormal, or... |

est_dist_censored | Function to return either normal, lognormal, gamma, or... |

from_csv | function to read data in csv format and convert date to... |

from_excel | function to read data in excel format |

get_theilsen | Function to get slope and intercept from Theil-Sen slope for... |

grubbs_test | Grubb's test for outliers |

gw_data | Example groundwater quality data |

include_dup | Function to include duplicate samples |

indiana_data | Groundwater quality data for the state of Indiana |

join_lt | Function to join columns of lt_measure and sample results |

kendall_trend | Kendall Trend |

manager | manager |

name_units | Function to return a column of parameter name with units |

nth_date | Function to find the date for next n samples |

ohio_data | Groundwater quality data for the state of Ohio |

percent_gt | Calculate the percentage of right censored data |

percent_lt | Calculate the percentage of left censored data |

piper_plot | Create a piper diagram |

piper_time_html | Function to create an aminated Piper plot and save to html |

piper_time_plot | Function to create an animated Piper plot through time using... |

pred_int | Function to calculate prediction interval |

pred_int_sim | Function to calculate simultaneous prediction interval |

read_manages3 | Function return a MANAGES 3.x Site.mdb database in memory |

read_manages4 | Function to read MANAGES 4.0 database |

remove_dup | Function to remove duplicate samples Example: If you have... |

replace_missing | Function to replace missing values |

rosner_test | Rosner's test for outliers |

sample_locations | Function to return a list of all the location IDs |

schoeller_plot | Schoeller Diagram |

series_plot | Function to plot a series plot of groundwater data |

set_background | Function to return a column of background data |

set_censored | Function to ensure non-detect data are set to either the PQL,... |

set_proposed_background | Function to return a column of the proposed background data |

start_date | Function to find the start of sampling for a well constituent... |

stiff_plot | Stiff Diagram |

stiff_time_html | Function to create an animated Stiff Diagram and save to html |

stiff_time_plot | Function to create an animated Stiff Diagram |

summary | Summary function |

to_censored | Function to convert character column of less than, or greater... |

tol_int | Function to calculate tolernace intervals |

to_spatial | function to convert data to sf object |

to_wide | Helper function to cast data frame to wide format |

ts_plot | This function plots multiple groundwater data time series by... |

tukey_outlier | Tukey's test for outliers |

update_background | Function to update background data |

write_event_summary | Function to export summary table for a sampling event |

write_excel | Function to export data from manages to excel. Each sampling... |

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