distransam: distransam.

In ttimbers/distransam: Creates random samples with equal N's across different sample groups

Description

#' Randomly samples a time series groups and plates/sites to get equal N's for both plates/sites and samples from each group

Takes a data frame containing a time series, a column name for the grouping variable, a column name for the plates/sites variable, and a column name for the sample id's. Returns one with equal N's for both plates/sites and samples from each group.

Usage

distransam(x, grouping_var, plate_var, sample_var)

Arguments

x	dataframe
grouping_var	string
plate_var	string
sample_var	string

Details

Takes a data frame containing a time series, a column name for the grouping variable, a column name for the plates/sites variable, and a column name for the sample id's. Returns one with equal N's for both plates/sites and samples from each group.

For unequal site numbers, it finds the minimum site number from the smallest group, and randomly selects that number of sites from each group. For unequal sample sizes between sites, it finds the minimum sample size from the smallest site, and randomly selects that number of samples from each group. The returned object is a dataframe, with all the same columns as the original data frame.

For unequal site numbers, it finds the minimum site number from the smallest group, and randomly selects that number of sites from each group. For unequal sample sizes between sites, it finds the minimum sample size from the smallest site, and randomly selects that number of samples from each group. The returned object is a dataframe, with all the same columns as the original data frame.

Value

dataframe

Examples

# distransam(data_frame, "strain", "plate", "id")

ttimbers/distransam documentation built on June 1, 2019, 2:49 a.m.