Honeybee Intermezzo 9: How to specify the time period in the WEA file

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Specifying the time period for the cumulative analysis

By default, the component the EPW to WEA component will extract the data for the whole year period.

However, there is the option to filter this time period it by specifying the ‘hoys’ input.

1. Create a Ladybug » Analyze Data » LB Analysis Period component.

2. Create a separate Params » Input » Number Slider for every input you wish to define. Set the numbers according to the months (1-12), days (1-31) or hours (0-23), that correspond to the start and end of your time period.

Important to note:

1. You do not always have to specify all the values in the LB Analysis Period component. For example, if you do not have specific days or hours which you want your simulation to be related to, you can only set the Start and End in terms of the corresponding months.

2. Regarding the ‘_start_month_’ and ‘_end_month_’, you should put the indexes that correspond to the time period you want to calculate, without necessarily the index of the end having to be larger than the index of the start! For example, if you want to calculate only for the period from October to February, you can assign 10 to the ‘_start_month_’ and 2 to the ‘_end_month_’ input.

3. Although the time period refers now to specific months and not to the whole year, the approach that you should follow for calculating the Daylight metrics in this case is the same as the one described in:

Step 5B: Annual Daylight simulation

This is because they are both Cumulative simulations, covering larger time periods instead of specific Points-in-Time.

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