sits_sample: Sample a percentage of a time series
In e-sensing/sits.data: Satellite Image Time Series Data Handling

Description Usage Arguments Value Author(s) Examples

Takes a sits tibble with different labels and returns a new tibble. For a given field as a group criterion, this new tibble contains a given number or percentage of the total number of samples per group. Parameter n: number of random samples with reposition. Parameter frac: a fraction of random samples without reposition. If frac > 1, no sampling is done.

1	sits_sample(data, n = NULL, frac = NULL)

`data`	Input sits tibble.
`n`	Number of samples to pick from each group of data.
`frac`	Percentage of samples to pick from each group of data.

A sits tibble with a fixed quantity of samples.

Rolf Simoes, rolf.simoes@inpe.br

# Retrieve a set of time series with 2 classes
data(cerrado_2classes)
# Print the labels of the resulting tibble
sits_labels(cerrado_2classes)
# Samples the data set
data <- sits_sample(cerrado_2classes, n = 10)
# Print the labels of the resulting tibble
sits_labels(data)