when I use Apply () comes up the following warning ? Anyone knows, please help

[Sanjmeh]

@Fiona

apply(notypos[ , -c(1,3)], 2 mean,na.rm=T), it presented a warning ( In mean.default(newX[, i], ...) :

Please give a fully reproducible code that can run standalone. Then only we can help you.
You can see this excellent documenation and read/see at liesure - it will be useful in future too.

[Video] Reproducible Examples and the `reprex` package

Reproducible Examples and the reprex package Intro Basic usage of reprex Motivation, why use reprex? "Help me help you" Define reprex? Three common ways to use the term. noun, a reproducible example the reprex package. a tool to build R reprexes reprex::reprex(), a function in reprex to make a reprex. When should you use a reprex? reprex installation and setup How do you actually get reprex on your machine? Advanced setup and discussion. Please use advanced features responsibly. Why does the reprex package exist? Anyone who has helped teach R or dealt with github issues, twitter, stack overflow & RStudio community questions knows that helping people diagnose their coding problems c…