get_vars {profrep}

Calculate Group Variance

Description

Calculate Group Variance

Usage

get_vars(individual_array, n_replicates)

Arguments

individual_array

The array of data for an individual

n_replicates

The number of replicate groups

Details

For the given individual array, for all rows of times, computes the variance in values over replicates.

Returns these variances, sum of all values (for all times and replicates), sum of all these values squared, and the number of values.

Value

A list, where the elements are:

     1. variances: A vector of the variances of the sample
     2. total_sum: The sum of all the measurements in the sample
     3. ssq: The sum of all the squares of the measurements in the sample
     4. num_measurements: The total number of measurements in the sample that are not null

Examples

arr <- data.frame(
  individual=c("a", "a"),
  time=c(5, 15),
  col_a=c(1, 2),
  col_b=c(2, 3)
)
variance_return <- get_vars(individual_array=arr, n_replicates=2)
print(variance_return)