Hello !

i would like to do from shiny prediction from a mutivariate ols model lm(var3 ~ var2 + var1) by plugging numerical values from the fitted model (var2_hat, var1_hat) to get prediced forecast var3_hat. I did several tests but could not reach my goal. If needed i can provide an example but if any one has a pedagogical example reproducible code to learn that would be great. I will then extend it to machine learning examples and share it. Thank you and have a nice end of year !

Cheers,