What does the integer while setting the seed mean?

Question

I want to randomly select n rows from my data set using the sample() function in R. I was getting different outputs each time and hence used

Answer 1

It is just a number used to set seeds for the random number generator. It has nothing to do with your data. If you don't explicitly provide a seed, a new one is created from the current time.

See the ?set.seed help page for plenty of details about it.