A time series is a series of data points indexed in time order. Most commonly, a time series is a sequence taken at
successive equally spaced points in time. - from Wikipedia
In this example we can see how many pieces of each product were sold each month.
report_model = SalesLineTransaction
date_field = 'transaction_date'
group_by = 'product'
columns = ['name']
time_series_pattern = 'monthly'
# Possible options are: daily, weekly, semimonthly, monthly, quarterly, semiannually, annually and custom.
time_series_columns = [
SlickReportField.create(method=Sum, field='quantity', name='quantity__sum', verbose_name=_('Quantities Sold'))
# we can have multiple ReportField in the time series columns too !