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 ...

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 ...