Minimum, mean and maximum series

This function of HYMOS comprises the computation of minimum, maximum, mean and median values as well as two quantiles for specific time periods.

Calculation interval

Minimum, maximum, mean, median and quantile values for the following time periods can be obtained:

  • day, this option will only be shown if the current time step in HYMOS < day
  • month, this option will only be shown if the current time step in HYMOS < month
  • year
  • seasons
  • total period, multiple series

Say, the selected time period is month and the time interval of the series to be analysed is day , then this option can provide you the minimum, maximum mean, median and quantile daily value per month between a start and end data.

When season is selected as calculation interval the user can select a season from the "Season definition" combo box. The first item in this season combo box is "User defined", this means that no season is selected form the list but one period will be entered by the user. Therefore the "Begin date" and "End date" of the period must be entered in the appropriate text boxes, make sure the entered format is "DD-MM".

When total period, multiple series is selected, the characteristics of the series for the currently selected period will be calculated. This option allows multiple series selection and can thus be used for comparing series.

note
The time interval of the series for which the minimum, maximum mean, median and quantiles values are to be determined should be less than the time period as indicated below:

Period time interval
day Dt < 3,1
month Dt < 2,1
year Dt < 1,1
seasons Dt < 1,1

An example of a graph can be:

In this graph there is a vertical line, a box and horizontal lines. The minimum and maximum values are represented by the bottom and top values of the vertical line. The quantiles are represented by the bottom and top of the box and the mean and medium are represented by the horizontal lines.

Season options

When the season option from the calculation interval is selected, there is the possibility to select between output formats of the function results:

  • Box Whisker per season; the results divided per season and for the duration of the whole period will be presented
  • Individual statistic; a specific item in the result set per season per year will be presented.
  • Box Whisker per year; the results per season per year will be presented.

The results, i.e. minimum, maximum, mean, median and quantiles series can be stored as new series in the database or exported to other windows applications.

Please note that the 'report' in case of the seasonal calculation 'per season' will not reflect the whole period, but will give the results per year.

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