       Re: calculating the distribution

• To: mathgroup at smc.vnet.net
• Subject: [mg20856] Re: calculating the distribution
• From: Takehiko SAITO <tksaito at cv.sony.co.jp>
• Date: Thu, 18 Nov 1999 01:09:34 -0500 (EST)
• Organization: Tokyo D.C., Sony corp.
• References: <80r0fa\$l43@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```sandmann at mip.sdu.dk wrote:
>
> How can I calculate the distribution of data in a Interval ?
>
> For instance, if I have the list {1,3,6,9,12,17,19,21,22,25} and I would
> like know the distribution i 5-intervals, so I get a list with a number
> for each interval. So I would get a list like {2,2,1,2,3}.
>
Try below.

<< Statistics`DataManipulation`
a = {1,3,6,9,12,17,19,21,22,25};
b = RotateLeft[ a ] ;
diff = Drop[ b-a ,-1] ;
d =  Transpose[ Frequencies[diff] ] ;

intvalList = d[]; Print[ "intervals : ",intvalList ]
countsList = d[]; Print[  "counts    : ",countsList ]

Results are

intervals : {1,2,3,5}
counts    : {1,3,4,1}

-------------------------------

Best regards,
Takehiko Saito

```

• Prev by Date: Progressive graphics output
• Next by Date: Re: Q: smooth 3Dplot with big mesh
• Previous by thread: Re: calculating the distribution
• Next by thread: Convex Hull