For example, by showing the various expense ... Horizontal analysis, also known as trend analysis, compares historical data on a financial statement over different accounting periods.

Microarray analysis can be performed to assess differences in gene expression between two different samples. After isolating nucleic acids from the two samples, one sample is labeled with a dye ...

method of presentation and appropriateness of how the sample was selected. Collecting and recording data When carrying out an investigation, you will need to collect and record data from which you ...

This is often called domain analysis (subgroup analysis). You can use PROC SURVEYREG to perform domain analysis as in the following example. data IceCreamData; input Grade Spending Income Gender$ @@; ...

My aim with this example is to leave you with an idea of how PCA can be used to explore data sets in which thousands of variables have been measured. Figure 1: Principal component analysis (PCA ...