if the coefficient of each individual's treatment is the same for all individuals, if the coefficient is constant, will it be the same in the lm package? how to fit panel data how to use the r lme4 package can r find coefficient on treatment and variable how to fit a panel data how to use lm in panel data how to fit a panel model using r how to find lm coefficient how do you find the coefficient for a r formula for treatment in an individual model r fitting a variable coefficient how to fit panel data to r what is the coefficient of each treatment variable in the r formula how to fit panel data for each individual how do i figure my coefficients in r how to use r to fit the coefficient of treatments how to find coefficients of treatment in r how to fit an array of variables for treatment how do you fit coefficients in r what r package fits a panel? how to fit r for dummy variable