Re: replace with closest value

• To: mathgroup at smc.vnet.net
• Subject: [mg119537] Re: replace with closest value
• From: Thomas <thomas.a.lanz at gmail.com>
• Date: Wed, 8 Jun 2011 07:14:36 -0400 (EDT)
• References: <iskvgs\$5nt\$1@smc.vnet.net>

```On Jun 7, 7:45 pm, graser <gra... at gmail.com> wrote:
> Hi
>
> I have a some question for you!
>
> Let's say there is a list like that
> AA={1.3, 1.5, 1.6, 1.8, 2.1, 2.3, 2.6, 2.9, 3.3, 3.7, 4.2, 4.7, 5.2,
> 5.9, 6.6, 7.4, 8.3, 9.4, 10.6, 11.8, 13.1, 14.8, 16.9, 19., 21.5,
> 23.6}.
> Length[AA]=26
> I want to replace the element in the list with a closest number I
> specify in my list  BB,
> BB={1.2, 1.4, 1.6, 1.8, 2, 2.25, 2.5, 2.75, 3, 3.25, 3.5, 3.75, 4, 5,
> 6, 8 , 10 , 15, 20, 25, 40, 60, 100},
> Length[BB]=23
> so that the list AA after I replace will be
>
> AA={1.2, 1.5, 1.6, 1.8, 2. 2.25, 2.5,3.........20, 25}
> Length[AA]=26.
>
> I wonder if anyone can help me to solve this problem!

Nearest could do the trick:

Nearest[BB, #] & /@ AA

or

Nearest[BB, #][[1]] & /@ AA

Regards,
T

```

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