反余弦matlab怎么求,余弦分析如何处理？matlab编程如何处理，求指导

Although the material and methods section is well written and adequately describes the methods applied in the study, statistical analysis should be corrected. The purpose of the authors was to assess the electroacupuncture effect on daily rhythmicity of intestinal movement and circadian rhythmicity of colonic Per2 expression; however no rhythmicity analysis was performed. Thus, it is indispensable that Authors perform a rhythmicity analysis as Cosinor or Acrophase analysis. Please read the papers of Piccione G. et al., on biological rhythm of mammalian species.

Authors should rewrite the results section in a easiest way since is too long and somewhat unclear for the reader, the same for the discussion section.