summarization notes

[carriewright11]

Clif was saying that he has a hard time explaining how to use the yts data (as it is complicated) and thinks it might be better to not use it

[carriewright11]

specifically this was happening when we were talking about group_by

[carriewright11]

I wonder if we could just use length() or nrow() instead of showing n_distinct() https://jhudatascience.org/intro_to_r/modules/Data_Summarization/Data_Summarization.html#28

we show that later: https://jhudatascience.org/intro_to_r/modules/Data_Summarization/Data_Summarization.html#46

and people are used to length() from earlier lectures like basic R

[carriewright11]

• extra afterrowwise` on slide about other functions you might see

[carriewright11]

Also rowwise caused a big discussion, may want an extra slide about it or may want to remove it - in later discussions Clif thought removing it was best