Introduction to gamma ray burst data analysis algorithm and software tools for GECAM

The Gamma-Ray Burst (GRB) data analysis is of great importance for the research on Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM); therefore, a user-friendly software tool that covers all the requirements on GRB data analysis has been developed for users. In this paper, the framework and architectural design of GRB data analysis tools software has been described. Meanwhile, details design including the graphical user interface and command line interface were introduced, as well as its installation. The core algorithms of the GRB data analysis were clarified and outlined, including background analysis, calculations on statistical significance, duration and peak flux in given time scale of light curve, fit for deposited energy spectrum, the calculation for the association of GRBs and external trigger event, and a trigger classifier based on Native Bayesian Classification, which offers a rationale and sample for the forward GRB data analysis in GECAM.