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Definition and difference between quantitative analysis and qualitative analysis
Qualitative description in written language

Quantitative description in mathematical language

Qualitative analysis and quantitative analysis should be unified and complementary; ; Qualitative analysis is the basic premise of quantitative analysis, and quantitative analysis without qualitative analysis is blind and worthless; ; Quantitative analysis makes qualitative analysis more scientific and accurate, and can promote qualitative analysis to draw extensive and in-depth conclusions.

Quantitative analysis is a method to establish a mathematical model based on statistical data, and use the mathematical model to calculate the indexes and their values of the analyzed object. Qualitative analysis is a method that mainly relies on the intuition and experience of the analyst, the past and present continuity of the analysis object and the latest information to judge the nature, characteristics and development and change law of the analysis object. Comparatively speaking, the former method is more scientific, but it requires advanced mathematical knowledge. Although the latter method is rough, it is more suitable for ordinary investors and economic workers when the data is insufficient or the mathematical foundation of analysts is weak. Therefore, the analysis made in the following sections of this chapter is basically qualitative analysis. However, it must be pointed out that although the two analytical methods have high or low requirements for mathematical knowledge, qualitative analysis and quantitative analysis cannot be completely separated. In fact, modern qualitative analysis methods also need to use mathematical tools to calculate, and quantitative analysis must be based on qualitative prediction. The two complement each other. Qualitative analysis is the basis of quantitative analysis, and quantitative analysis is the embodiment of qualitative analysis. Only flexible combination can achieve the best effect.

Different analysis methods have their own characteristics and performances, but they all have one thing in common, that is, they generally analyze and explain problems through comparison. It reflects the quantity, quality, benefit, consumption and development speed through the comparison of various indicators or the same indicator in different periods, thus providing conclusive information for identification and judgment.

Application:

In the research of evidence law, qualitative analysis method and quantitative analysis method have their own advantages and can complement each other. However, because the researchers of evidence law in China are familiar with qualitative analysis methods, it is necessary to emphasize the role and importance of quantitative analysis methods. For example, we should not only analyze whether a certain evidence rule is good or not, but also analyze its pros and cons ratio … and so on.

Patent analysis methods can be divided into quantitative analysis and qualitative analysis. Quantitative analysis is to count the external characteristics (various descriptions of patent documents) of patent documents according to certain indicators (such as the number of patents), and to interpret and analyze relevant data. Qualitative analysis is an analysis process that takes the contents of patents as the object, merges patent documents according to their technical characteristics and makes them orderly. Usually, the combination of the two is needed to achieve better results.