Multivariate analysis enables pattern detection of a random sample of data and the possibility of drawing correlation between individuals. More information can be extracted using this method compared to individual comparison and observation of each object, enabling appropriate conclusion to be drawn. Since multiple measurements in one object exist in every aspects of life, multivariate analysis is an appropriate technique to apply.
Multivariate analysis was first introduced in the 1930s, but its application was still limited due to the complex computation. With the development of computer technology in the last thirty years, multivariate analysis has now become an easier tool to use in statistics.
The techniques in multivariate analysis emphasize the importance of geometric presentation and is not associated with a specific stochastic model and thus neglecting the question whether a result will be observable at the end. One technique that has been widely used is to reduce the dimension of data and represent the data graphically in a two-dimensional space.
Keywords: Statistika Peubah Ganda