apply_function_in_r.Rmd

# Apply function in r

Tianmai Jiao

[My youtube link: https://youtu.be/GVoa_zwYGzs](https://youtu.be/GVoa_zwYGzs)  
Here is my tutorial video of apply function in R. In this video, I firstly introduce the components of apply function, then I give some examples regarding how to use mean,max,percentile,plot function in apply(). Finally, I  write a function in hand, then apply it in apply function.