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Fix some typos #77

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Fix some typos #77

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6 changes: 3 additions & 3 deletions EnglishVersion/2-JobLogicalPlan.md
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Original file line number Diff line number Diff line change
Expand Up @@ -183,9 +183,9 @@ Then,
```
Foreach rdd = rdds(i):
if the dependency between CoGroupedRDD and rdd is OneToOneDependency
Dependecy[i] = new OneToOneDependency(rdd)
Dependency[i] = new OneToOneDependency(rdd)
else
Dependecy[i] = new ShuffleDependency(rdd)
Dependency[i] = new ShuffleDependency(rdd)
```

Finally, it returns `deps: Array[Dependency]`, which is an array of `Dependency` corresponding to each parent RDD.
Expand All @@ -198,7 +198,7 @@ Finally, it returns `deps: Array[Dependency]`, which is an array of `Dependency`

![intersection](../PNGfigures/intersection.png)

`intersection()` aims to extract all the common elements from `RDD a` and `RDD b`. `RDD[T]` is mapped into `RDD[(T,null)]`, where `T` cannot be any collections. Then, `a.cogroup(b)` (colored in blue) is performed. Next, `filter()` only keeps the records where neither of `[iter(groupA()), iter(groupB())]` is empty (`FilteredRDD`). Finally, only keys of the reocrds are kept in `MappedRDD`.
`intersection()` aims to extract all the common elements from `RDD a` and `RDD b`. `RDD[T]` is mapped into `RDD[(T,null)]`, where `T` cannot be any collections. Then, `a.cogroup(b)` (colored in blue) is performed. Next, `filter()` only keeps the records where neither of `[iter(groupA()), iter(groupB())]` is empty (`FilteredRDD`). Finally, only keys of the records are kept in `MappedRDD`.

6) **join(otherRDD, numPartitions)**

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