how many na in min r what is the na in r different time frames in r what is the na of the r model when is the last time a market na what na value do i get what is na na when to use different time series what is the na in the stock market what is the na na na na na how many time frames for the stock market different na values different time frames in an economic model when do you get error messages with na data? what is the na number for r? what is the na in r how many na's are there how to do data analysis using na what is the na for daily