Simulation in R 

Love the tip about setting the seed for reproducibility!

What a fantastic video, Roger! I have a question regarding your explanation. Why do you always set a standard deviation equals to 2 for error terms in simulation using linear model? Is there any specific academic reason behind the selection? Thank you!

It seems the generator does not generate the sample to have exactly the mean and sd you give it. I wonder how it cannot achieve this?

Roger, thanks. I had also attempted "rexp()" to plot an exponential curve. I then attempted "rgamma()" and was stuck. It is possible that you can do a video to illustrate the Gamma distribution? Many thanks.

Thank you very much for detailed practical examples.

How can I just found you? Great video!

i heard something unsual in 2:13.

what about multiple linear regression?

Very useful, very clear!

I have data like abc def xyz 123.00 Iwant to do that space fill between only abc def but not xyz 123.00 pls solve my problem THANKS

heelloo do anybody knows whats is time scale simulation?

what about multiple linear regression simulation?

Thanks

Thank you so much!!!!!

cool stuffs

thanks!!