July 2018
Intermediate to advanced
334 pages
8h 20m
English
Content preview from Modern Scala Projects
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Step 10 – joining the spam and ham datasets
In this step, we will use the ++ method to join both dataframes in a Union operation:
val hamAndSpamNoCache: org.apache.spark.rdd.RDD[LabeledHamSpam] = (hamRDD3 ++ spamRDD3)hamAndSpam: org.apache.spark.rdd.RDD[LabeledHamSpam] = UnionRDD[20] at$plus$plus at <console>:34
In the next section, let's create a dataframe, with two columns:
- A row containing feature sentences with punctuation removed
- A predetermined label column
Check for the following code snippet for better understanding:
val hamAndSpamDFrame" = hamAndSpam.select(hamAndSpam("punctLessSentences"), hamAndSpam("label"))dataFrame2: org.apache.spark.sql.DataFrame = [features: string, label: double]
We created the new dataframe. Let's display ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.