I can't find "pairwise compare using t tests with pooled SD"

[ayumuu chan]

Hi everyone, I'm writing to you because I'm having trouble with an example that one of my teachers gave me. I can't find the path he used to get the "pairwise compare using t tests with pooled SD" and when I copy the same command, I get an error message that says "pairwise.t.test is not a valid command name". Can you help me please ? thank you in advance
This is the result of the teacher

[Carlo Lazzaro]

Sorry to disappoint you, but I do not think that this is the right forum to seek help for the code you posted.