Summarizing data by multiple groups.

[Sarika]

Hello Vikas,

Could you please explain how to summarize data by multiple groups. This topic is in Prog 2 ,Lesson 2, 

3.11 .

Thanks you.

Sarika.

 

[Jennifer SUN]

HI Sarika,

would you mind be more specific about your question, what is the part(s) you need more explanation? I might be able to help.

Jennifer

[Sarika]

Hello Jennifer,

Appreciate your response.I am having difficulty understanding concept of summarizing data by groups using First. Last. and accumulating variable which is a 3 step process in Prog 2, Lesson 2 , chapter 3.

Regards,

Sarika.

[Jennifer SUN]

For accumulate variable, Vikas has gone through on 8/6's class. you may review.

For first. last. Vikas has explained in 7/21's class, please review the class recorder.