what is r deviance r function to fit missing data in a data set which function is used to find variance in a model? r fitting missing data point y r fitting missing values function what is deviance used for how to use the function of fit missing data points function to find y how to find deviance in r function to fit missing values in r how do you do deviants in r how to use deviance function in r can r find variance in fit when fitting multiple missing values to a dataset what should the function do? why do r functions fail to incorporate variance how to find a missing data point r fitting missing data how do i find the deviance in r what is the function nls function to use when r is missing data