Smart Data Discovery Using SAS Viya by Felix Liao

Smart Data Discovery Using SAS Viya by Felix Liao

Author:Felix Liao [Felix Liao]
Language: eng
Format: epub
Publisher: SAS Institute
Published: 2020-08-10T16:00:00+00:00


Even without adding a linear fit line, the trends of decreasing child mortality as the rate of access to improved water source increases is clear just by looking at the data points on the chart. In other words, the trend line should look like a straight line going toward to the bottom right corner.

To validate our hypothesis, we can ask SAS Visual Analytics to plot a linear fit line by going to the Fit Line section within the Options pane and selecting Linear. The new scatter plot with a linear fit line is shown in Figure 6.13. The linear fit line option with SAS Visual Analytics gives us the best quantified linear relationship between the two variables using the least squares method discussed earlier. It is one of many fit line options available to you including a “best fit line” option, which tries to produce a line of best fit that might involve non-linear relationships as we will explore later in this chapter.

Figure 6.13: Linear Fit Line Generated by SAS Visual Analytics



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