In order to begin an analysis and set goals for meaningful results, you will need to have grounds for comparison. Comparative results between two dissimilar subjects may have little meaning. As part of the experiment or analysis you need to explain your reasoning for the comparison so it can be tied into the significance of the results
Comparative results must have context for comparison and contrast. This may be an idea, theme, question, problem, or theory. Usually specific sources are used to establish a frame of reference. These are applied to the comparative results to propose a meaningful argument or conclusion.
When a comparative analysis is undertaken, you begin with a hypothesis or thesis statement which serves as an estimation of what you think the comparative results will be when the experiment or argument is complete. This relates to the purpose you establish for the analysis, and helps connect the two subjects of comparison so that the significance of the results will be more evident.
Comparative results can be organized in different ways. For example, you can analyze the two subjects separately then develop the comparative results at the end. Another method is to alternate discussion of the two subjects, with the comparative results developed throughout the experiment or report.
The primary benefit of comparative results is that they are focused on two subjects that have a purposeful grounds for comparison. A thesis or hypothesis that would be difficult to apply to a general subject can have meaning when comparing specific subjects. The limited scope of the results is desirable in this case, as a logical and systematic analysis provides specific data with a clearly established context.