Where can I get interesting datasets for training R?

Question

data mining

Good evening!
I started learning R. Please tell me where I can get interesting data sets (csv, json, xml, etc.) for learning R (statistics, data mining). All the same, when setting some tasks (albeit to oneself), learning new things is much easier than generating random numbers.
Thanks in advance.

Answer 1

google is elementary:
data.gov
kdnuggets.com/datasets/index.html
kaggle.com/competitions

Answer 2

For the simplest illustrations, there are datasets embedded in R. They are quite diverse and have a wide range of applications. The advantage is that they do not need to be downloaded, uploaded, messed with from anywhere. They just hang in R and wait to be called upon.
To view available datasets, use this code
Usage is simple. for example
summary(lm(mpg~hp, data = mtcars))