将值传递给R中的线性回归模型

Question

I am new to R and have built a multi linear regression model in R with three predictors now I want to pass value set for the three predictors and predict the value, below are my coefficients and intercept

(Intercept) XYZ -29 -0.24 3.49 8.3

I know how to write a formula and manually calculate it, but for example if i want to pass x=0.1 Y is a factor value is '1' and Z=6 to the model and Run the model to get the output how to do that

Answer 1

Let's assume your regression object's name is mymod . Then the predict function has a newdata argument that needs a list supplying named vectors corresponding to the RHS of your formula:

 predict( mymod, newdata= list(X=0.1, Y='1', Z=6) )