To select a Time period select any of the options below in the Time period list.
- Select start and stop date: use this option to set a fixed date range
- Year to Date: use this option to include all respondents from the current year
- Full period: use this option to include all the respondents
- Select last: use this option to select all respondents from the last X number of days, weeks, months etc.
Note: the last option above, “Select Last” is based on the highest interview date in the project and not the current date. If the highest interview date is the 3rd of April 2019 the option “Last 1 week” will include all interviews from that week which means all interviews from 1st of April (see calendar in the image below), it will not include the respondents from the last 7 from either the 3rd of April or the current date. The same goes for the other options so “Last 2 years” will for example include all respondents from 1st of January 2018 if the highest interview date is 3rd of April 2019.
To split the data by intervals such as weeks, months and quarters select the desired interval in the Interval selection control. Full period means that no interval is applied.
Here we see the Interval selection control.
If an interval is applied to the chart you can also so apply a moving average calculation.
Here we see the Moving averages controls that appears when turning on Moving average.
To apply a moving average you have to define the number of periods to base the moving average on, like for example a 2 weeks moving average as shown in the image above.
When applying a Moving average calculation the initial intervals that do not have enough data points are hidden automatically. If the chart, for example, shows data for Week 1, Week 2, Week 3…. Week 20 and a 3 weeks Moving average is applied the first two weeks will be removed from the chart as these do not have 3 weeks data. You can though select to show these “incomplete” weeks by ticking the option shown in the image below.