| Publisher | SAS Institute | ||
|---|---|---|---|
| Format | 734.0KB PDF | Date added | 14 May 2007 |
| Topics | Graphics Applications, Data Mining - Analysis, Data Visualization | ||
| Downloads | 39 | ||
By using SAS and its graphing capabilities exploratory analysis of longitudinal data is for more capable then other methods. Comparing means between groups is too weak of a comparison and does not allow seeing trends or tracking change. OLS trajectories or level-1 models do not track differences among individuals and only shows the change over time. SAS can help visualize the multilevel model by fitting group means overlaid on individual plots. This visualization makes longitudinal analysis easier to grasp.
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