You can display data using both a bar chart and a line chart for different members of the view:
1. On the View tab of the ribbon, click Chart Type and select one of the bar chart types.
2. In the chart legend, click next to the member you wish to represent by means of a line chart. From the chart member menu, select Line Chart.
The selected member is now represented by means of a line chart.
To return the member to bar chart:
Open the chart member menu in the legend, and select Bar Chart.