TADA_FieldValuesPie: Field Values Pie Chart

In USEPA/TADA: EPA TADA (Tools for Automated Data Analysis) R Package

Field Values Pie Chart

Description

Function creates a ggplot2 pie chart showing the relative proportions of values in a given field in a TADA dataset.

Usage

TADA_FieldValuesPie(.data, field = "null", characteristicName = "null")

Arguments

.data	TADA dataframe
field	The field (column) the user would like to see represented in a pie chart.
characteristicName	Optional. Defaults to "null". A vector of TADA-converted (all caps) WQP characteristics a user may provide to filter the results to one or more characteristics of interest. "null" will show a summary table for the whole dataset.

Value

A ggplot2 pie chart.

Examples

# Load example dataset:
data(Data_Nutrients_UT)

# Create a list of parameters in the dataset and the number of records of
# each parameter:
TADA_FieldValuesPie(Data_Nutrients_UT, field = "TADA.CharacteristicName")
# If there are more than 12 categories to display, any remaining categories,
# the ones that have the smallest number of results,
# are combined into an "ALL OTHERS" category.
TADA_FieldValuesPie(Data_Nutrients_UT,
  field =
    "TADA.ComparableDataIdentifier"
)

USEPA/TADA documentation built on April 12, 2025, 1:47 p.m.