How to use td.Map with lambda

[acelove]

Assum that a is a sequence of number, b is a number and c is a number too. How can I use Map and lambda to get a sequence of number [a1+b+c, a2+b+c, ... , an+b+c] I think Map(Function(lambda x,y,z: x+y+x)) is not work?

[acelove]

I use Broadcast and Zip to achieve my goal.However, Broadcast copy the data many times so it cost a lot of memery.Is there a more efficient way?

[delesley]

Yes, you should use broadcast and zip. Broadcast does not copy the data; it's a python generator that expands a single element to a stream.

On Mon, Apr 10, 2017 at 1:50 AM, acelove [email protected] wrote:

I use Broadcast and Zip to achieve my goal.However, Broadcast copy the data many times so it cost a lot of memery.Is there a more efficient way?

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