Confidence interval (置信区间) Confidence level 1−α1−α (置信水平或置信度) Significance level αα (显著性水平) p-value (p值) 3.2 T型检验 load stockreturns; x1 = stocks(:,3); x2 = stocks(:,10); boxplot([x1, x2], {'3', '10'}); [h,p] = ttest2(x1, x2) % h代...
Alternatively, researchers may use internally developed, custom tools (e.g. Excel macros or Matlab programs) to remove non-physiological data. Not only are these methods time consuming, they make study results difficult to reproduce by others who do not use the same methods. Data Insights ...