Error performing command r <- stdres - Error in stdres (ols): could not find function "stdres". What do I do?

[rafaelmarinho]

I'm from Brazil. I'm a beginner in R. Sorry for the mistakes in English.
When using the Robust Regression script to the trees data, an error occurs in the line where stdres is present. I have already downloaded all the necessary packages (MASS and FORAIGNE) and still give this error.

Could someone help me understand what it could be causing? Follow the print.

hugs

[andresrcs]

You have to load the MASS library before using the stdres() function

library(MASS) 

[rafaelmarinho]

You helped me. I did not know I had to carry it. Friend, the R will make me lose my hair more fingers. Thank you very much.

[andresrcs]

If your question's been answered (even by you!), would you mind choosing a solution? It helps other people see which questions still need help, or find solutions if they have similar problems. Here’s how to do it:

FAQ: How do I mark a solution?

If your question has been answered, don't forget to mark the solution! How do I mark a solution? Find the reply you want to mark as the solution and look for the row of small gray icons at the bottom of that reply. Click the one that looks like a box with a checkmark in it: [image] Hovering over the mark solution button shows the label, "Select if this reply solves the problem". If you don't see the mark solution button, try clicking the three dots button ( ••• ) to expand the full set of options. When a solution is chosen, the icon turns green and the hover label changes to: "Unselect if this reply no longer solves the problem". Success! [solution_reply_author] …