DATA STATISTICAL ANALYSIS METHOD FOR RESEARCH AFTER MARKETING OF PRODUCTS

摘要

The present invention provides a data statistical analysis method for research after marketing of products, comprising: a, collecting research data after marketing of products through a plurality of research terminals, the research terminals are independent of user terminals, the user terminals refer to terminals in which the product is applied, the research data comprise at least product use cycle information, intra-cycle use amount information and application feedback information; b, extracting a characteristic value set X in research data from the research terminal, wherein, X＝{x1,x2…xn}, and elements forming the characteristic value set are data related to time and usage; c, extracting sales data corresponding to the time point when the research and development data is generated, a function expression S＝f(X) is constructed by taking the characteristic value set as an independent variable and the sales data as a dependent variable, wherein, S represents the sales data, an extremum of the function expression is calculated, and the extremum is taken as an index value for predicting the market trend.