Many reasons exist for why chart users would explore a set of data displayed across time. Some people use functional assessment data and need to use a geometric mean to ascertain the level line. Other people may chart the scores of 8 different people, therefore stacked data represent each person's performance on the chart. Chartlytics allows chart users different options for data display: First, Median, Geometric Mean, Minimum, Maximum, and Stacked (Future release will include Summed).

**First** data point. **First** shows the first data point recorded in a series of data points (frequency, duration, or latency). The example below shows four measures taken in one day. **First** data point charted means showing the first data point of the day/week/month.

To select **First** data point go to the Options tab. Click on it. Next Click on **First**. The chart will display the first data point of the measures for the day/week/month.

**Median** data point. **Median** refers to the “middle number” in a sorted list of numbers. The example below shows four numbers for the acceleration data. **Median** data point charted means showing the middle data point of the day/week/month.

To select **Median** data point go to the Options tab. Click on it. Next Click on **Median**. The chart will display the median data point for acceleration and deceleration data for the day/week/month.

**Stacked** data point. **Stacked** shows all of the measured data stacked on one line. **Stacked** data point charted means showing the spread of all data point for a specific day/week/month.

**Geometric Mean** data point. **Geometric Mean** describes a special type of average where we multiply the numbers together and then take a square root (for two numbers), cube root (for three numbers) etc. Also described as for **n** numbers, multiply them all together and then take the **n**th root. The example below shows four numbers for the acceleration data.

To select **Geometric Mean** data point go to the Options tab. Click on it. Next Click on **Geometric Mean**. The chart will display the geometric mean data point for acceleration and deceleration data for the day/week/month.

**Minimum** data point. **Minimum** refers to the minimum value in a list of numbers or data set. The example below shows four numbers for the acceleration data. **Minimum** data point charted means showing the minimum (lowest) data point of the day/week/month.

To select **Minimum** data point go to the Options tab. Click on it. Next Click on **Minimum**. The chart will display the median data point for acceleration and deceleration data for the day/week/month.

**Maximum** data point. **Maximum** refers to the greatest value in a list of numbers or data set. The example below shows four numbers for the acceleration data. **Maximum** data point charted means showing the maximum (highest) data point of the day/week/month.

To select **Maximum** data point go to the Options tab. Click on it. Next Click on **Maximum**. The chart will display the median data point for acceleration and deceleration data for the day/week/month.

**Stacked** data point. **Stacked** shows all of the measured data stacked on one line. **Stacked** data point charted means showing the spread of all data point for a specific day/week/month.

To select **Stacked** data point go to the Options tab. Click on it. Next Click on **Stacked**. The chart will display the median data point for acceleration and deceleration data for the day/week/month.

An example of what stacked dots look like appear below.

Whatever your data needs, you have a friend in Chartlytics!