FlatMap Explanation

[Ashish Soni]

Hi ,

Can some one please explain the output of the flat map
data in RDD as below
{1, 2, 3, 3}

rdd.flatMap(x => x.to(3))

output as below

{1, 2, 3, 2, 3, 3, 3}
i am not able to understand how the output came as above.

Thanks,

Re: FlatMap Explanation

[Raghavendra Pandey]

Flatmap is just like map but it flattens out the seq output of the
closure...
In your case, you call "to" function that is to return list...

a.to(b) returns list(a,...,b)

So rdd.flatMap( x => x.to(3)) will take all element and return range upto
3..
On Sep 3, 2015 7:36 AM, "Ashish Soni"  wrote:

> Hi ,
>
> Can some one please explain the output of the flat map
> data in RDD as below
> {1, 2, 3, 3}
>
> rdd.flatMap(x => x.to(3))
>
> output as below
>
> {1, 2, 3, 2, 3, 3, 3}
> i am not able to understand how the output came as above.
>
> Thanks,
>
>

RE: FlatMap Explanation

[Zalzberg, Idan (Agoda)]

Hi,
Yes, I can explain

1 to 3 -> 1,2,3
2 to 3- > 2,3
3 to 3 -> 3
3 to 3 -> 3

Flat map that concatenates the results, so you get

1,2,3, 2,3, 3,3

You should get the same with any scala collection

Cheers

From: Ashish Soni [mailto:asoni.le...@gmail.com]
Sent: Thursday, September 03, 2015 9:06 AM
To: user 
Subject: FlatMap Explanation

Hi ,
Can some one please explain the output of the flat map
data in RDD as below
{1, 2, 3, 3}

rdd.flatMap(x => x.to<http://x.to>(3))

output as below

{1, 2, 3, 2, 3, 3, 3}
i am not able to understand how the output came as above.
Thanks,


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Re: FlatMap Explanation

[Ashish Soni]

Thanks a lot everyone.
Very Helpful.

Ashish

On Thu, Sep 3, 2015 at 2:19 AM, Zalzberg, Idan (Agoda) <
idan.zalzb...@agoda.com> wrote:

> Hi,
>
> Yes, I can explain
>
>
>
> 1 to 3 -> 1,2,3
>
> 2 to 3- > 2,3
>
> 3 to 3 -> 3
>
> 3 to 3 -> 3
>
>
>
> Flat map that concatenates the results, so you get
>
>
>
> 1,2,3, 2,3, 3,3
>
>
>
> You should get the same with any scala collection
>
>
>
> Cheers
>
>
>
> *From:* Ashish Soni [mailto:asoni.le...@gmail.com]
> *Sent:* Thursday, September 03, 2015 9:06 AM
> *To:* user 
> *Subject:* FlatMap Explanation
>
>
>
> Hi ,
>
> Can some one please explain the output of the flat map
>
> data in RDD as below
>
> {1, 2, 3, 3}
>
> rdd.flatMap(x => x.to(3))
>
> output as below
>
> {1, 2, 3, 2, 3, 3, 3}
>
> i am not able to understand how the output came as above.
>
> Thanks,
>
> --
> This message is confidential and is for the sole use of the intended
> recipient(s). It may also be privileged or otherwise protected by copyright
> or other legal rules. If you have received it by mistake please let us know
> by reply email and delete it from your system. It is prohibited to copy
> this message or disclose its content to anyone. Any confidentiality or
> privilege is not waived or lost by any mistaken delivery or unauthorized
> disclosure of the message. All messages sent to and from Agoda may be
> monitored to ensure compliance with company policies, to protect the
> company's interests and to remove potential malware. Electronic messages
> may be intercepted, amended, lost or deleted, or contain viruses.
>