can you use mixed effects with lme4 how to adjust a fixed effect how to calculate day's fixed effects how to calculate fixed effects of different days what is the mixed effects model used for how to calculate fixed effects on a mixed model how to estimate the fixed effect for data can you do a linear mixed effects model what is the purpose of a fixed-effects mixed model which mixed effects model can estimate the fixed effect of each day and determine which day's effects are likely to be significant? how many day can you use mixed effects in r calculate lme4 variable why do I need to adjust the fixed impact of each individual day in mixed-effects how to estimate the fixed effects from each day lme4 how many days can mixed effects model estimate fixed effect what is mixed effects model used for how to make a reasonable estimate of an adjusting day how many days does lme4 have how to do a fixed effect on a single day's data