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

> 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

>

>

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