Summary plot below error

[jasonzhao0307]

in summary plots, sometimes when the selected condition is ID, it will show an error message: "x must be numeric". One way to solve this problem is, if we found that one variable is the ID viarable, we won't show it in any menu

[jasonzhao0307]

changed the filter_summary_top and filter_summary_bottom:
Use density plot if the variable has more than 8 unique values, AND number of level / number of sample >= 0.3 AND the element is not character