1. barchart x축 변수 1개로만 그리는 경우 xxxxxxxxxx ggplot ( Group_Data ) + geom_bar ( aes ( x = as.factor ( Counts ), fill = ..count.. )) + xlab ( "" ) + ylab ( "" ) + scale_fill_gradient ( low = "#CCE5FF" , high = "#FF00FF" ) + theme_classic () + ggtitle ( "Continuous Color" ) ggplot ( Group_Data ) + geom_bar ( aes ( x = as.factor ( Counts ), fill = Day ), alpha = 0.4 ) + xlab ( "" ) + ylab ( "" ) + theme_classic () + ggtitle ( "Discrete Color" ) ggplot ( Group_Data ) + geom_bar ( aes ( x = as.factor ( Counts ), fill = Day ), alpha = 0.4 , position = "dodge" ) + xlab ( "" ) + ylab ( "" ) + theme_classic () + ggtitle ( "Discrete Color \n position Dodge" ) x축, y축 변수 2개로 그리는 경우, stat = 'identity' 사용합니다. xxxxxxxxxx ggplot ( Group_Data ) + geom_bar ( aes ( x = Year , y = Mean , fill...