which model would be best for duration what is glm in regression if duration is positive can you model a regression tree if duration is nonnegative what is the explanatory variable? if duration is a nonnegative variable and the explanatory variable is a factor or numerical variable then r would use a tree and a log what kind of tree would i use in regression can i use explanatory variables with tree what is the r regression tree what type of data can r models why use r to model duration r can i use the duration variable as explanatory variable r is a classification tree if duration is non negative can i use explanatory variables how can i model duration in r what type of trees to use in regression analysis can i combine the r tree and glm what is a classifier in r which of the following is an explanatory variable? which variables can be used in a regression tree? what is a time delay in regression with glma