The one-sided that advanced analysis methods, survey error is inevitable. The analysis model and method of any limitations to its use, in some occasions of failure. I have found through investigation, data analysis personnel too believe that advanced analysis methods, the data in most cases will use advanced analysis methods. For example, in a recent household survey data, they used the method of regression analysis, increased their workload, in fact, a clustering analysis method is simple to solve the problem. The more advanced data analysis method is not necessarily the best, is simple and effective to solve the problem is the best.
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