Re: Question on Map or Apply

• To: mathgroup at smc.vnet.net
• Subject: [mg66380] Re: [mg66338] Question on Map or Apply
• From: János <janos.lobb at yale.edu>
• Date: Thu, 11 May 2006 02:15:13 -0400 (EDT)
• References: <200605101033.GAA21794@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```On May 10, 2006, at 6:33 AM, LectorZ wrote:

> Hi guys,
>
> I am trying to apply DaysBetween function to the following list:
>
> list={{{2006, 1, 16}, {2006,
>       3, 31}}, {{2006, 1, 24}, {2006, 3, 31}}, {{2005, 6, 17}, {2006,
> 3, 31}}}
>
> DaysBetween[list[[1, 1]], list[[1, 2]]] works well.
> What I need is to apply DaysBetween on the whole list conaining 3
> sublists and getting a new list as a result containing 3 numbers.
>
> Thanks,
>
> LZ

Here is a newbie approach using Map - /@ - :

In[3]:=
(DaysBetween[#1[[1]],
#1[[2]]] & ) /@ list
Out[3]=
{74, 66, 287}

János

----------------------------------------------
Trying to argue with a politician is like lifting up the head of a
corpse.
(S. Lem: His Master Voice)

```

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