Hi, folks,

Happy work in weekends >_<

My question is how to plot the dependent variable against one of the
predictors with other predictors as constant. Not for the original data, but
after prediction. It means y is the predicted value of the dependent
variables. The constane value of the other predictors may be the average or
some fixed value.

#######
y=1:10
x=10:1
z=2:11
lin_model=lm(z~x+y)
x_new=11:2
#######


How to plot predicted value of z from the regression model with x takes
x_new and y as a constant (let's say y=1)


I am thinking about using 'predict' command to generate the prediction of z
with the new data.frame but there should be a better way.

Thanks all.

Yi

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