Creating Histogram-Data from X,Y,Z-Data

*To*: mathgroup at smc.vnet.net*Subject*: [mg126570] Creating Histogram-Data from X,Y,Z-Data*From*: Andre Koppel <akoppel at akso.de>*Date*: Sat, 19 May 2012 05:47:59 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

Hi All, I do have some Data like the following: {{1, 2, 3}, {4, 5, 6}} To use a histogram-function (like Histogram3D) I need to transform this into a list like: {{1,2}, {1,2}, {1,2}, {4,5}, {4,5}, {4,5}, {4,5}, {4,5}, {4,5}} This means "Create an X/Y-Pair for each Z-Value. Possibly with an optional Z-Step. Second Example (Z-Step: 2) {{1, 2, 4}, {4, 5, 6}} Would result in: {{1, 2}, {1, 2}, {4,5}, {4,5}, {4,5}} Did anybody know a simple converting-Function? Kind regards Andre

**Follow-Ups**:**Re: Creating Histogram-Data from X,Y,Z-Data***From:*Bob Hanlon <hanlonr357@gmail.com>