| cat_smd | smd value for categorical variables |
| cat_table | DemoGraphic table for categorical variables |
| cont_smd | smd value for continuous variable. |
| cont_table | DemoGraphic table for continuous variables |
| demo_table | Demographic Table for continuous and categorical variables |
| get_mean | Mean, var function |
| my.chi.sq | chi square test to get expected value and p value |
| my.fisher | fisher exact test to get p value if any cell in propotion table of expect value less than 5 |
| mydocx | write smd table or demographic table into docx file |
| smd_ci | Confident interval for smd |
| t.test.p.value | t.test to calculate p value |