Re: split
- To: mathgroup at smc.vnet.net
- Subject: [mg73603] Re: split
- From: dh <dh at metrohm.ch>
- Date: Fri, 23 Feb 2007 04:25:42 -0500 (EST)
- References: <erjo7l$nrf$1@smc.vnet.net>
Hi Arek,
if I understand you right, you want to consider numbers equal if the
belong to the same 3-period: {1-3},{4-6},{7-9}.. This can be done e.g. by:
Split[datalist, (Quotient[#1 - 1, 3] == Quotient[#2 - 1, 3]) &]
Daniel
Arkadiusz.Majka at gmail.com wrote:
> Hi,
>
> I want to split a list, say
>
> z = {1, 3, 2, 6, 4, 7, 5,1,7};
>
> into sublist of elements that are less or equal 3.
>
> so I want to obtain
>
> {{1,3,2},{6,4,7,5},{1},{7}}
>
> How to do it? Probably by applying Split, but what to put in Test?
>
> Split[z,#<=3&] gives :
>
> {{1, 3, 2, 6}, {4}, {7}, {5}, {1, 7}}
>
> Why 6 was put in first sublist together with 1, 3, and 2 since 6>3 and
> should be together with 4 in the second sublist?
>
> Thanks,
>
> Arek
>
>