r create dummy variable what is a cny in r dummy variables in time series what is dummy variable dummies in r how to find dummy variable in r? how to add more than one dummy variable to r what is the dummy variable of daily r definition dummy variables r create dummy variable how to create a dummy variable r how to add dummy variables in r what is a daily visitor in r dummy values in time series define dummy variable in r what is an example of a time series variable how to add a time series with more than one dummy variable how to add dummy variable in r what is the dummy variable of r what is the dummy variable in r