R Variable Assignment

var_assign1 valid Variable can use in number,underscore
var_assign% Invalid Can’t use ‘%’.  dot(.) and underscore allowed.
2var_assign invalid Variable can’t start with number
.var_assign ,
var.assign
valid Can start with a dot(.) and the dot(.) with join.
.2var_assign invalid Variable started with dot & number
_var_assign invalid Variable starts with _ which is not valid