MANET

---

	Missings
	Are
	Now
	Equally
	Treated

A brief summary of MANET features

MANET basics

Plots in MANET

First Interactive Implementations of

New Interactive Features

Ongoing Research includes

Odds & Ends

MANET basics

• Getting started

  MANET runs on any computer running the Macintosh Operating System (Mac-OS) - Apple PowerMacs preferred. To start MANET just double-click the MANET icon . After MANET started, it is quite happy of having 4M of application memory, you may load a dataset with the menu-item: . In the fileselection-box you then may choose an appropriate dataset. To produce any plot select a suitable number of variables in the variables window . In the Plots menu you now can choose any plot, depending how many variables you have selected.

  Data Format

  MANET supports the standard text matrix file, i.e. tab separated columns with a labels row at the top. The first lines of the Crash dataset look like this:

  Country	make	Head IC	Chest decel	L Leg	R Leg	LHead	LChest	LLLeg	LRLeg	LWt	D/P	Protection	Doors	Year
  	Acura	599	35	791	262	2.777	1.544	2.898	2.418	3.371	Driver	manual-belts	2	87
  	Acura	585		1545	1301	2.767		3.189	3.114	3.396	Driver	Motorized-belts	4	90
  	Acura	435	50	926	708	2.638	1.699	2.967	2.850	3.516	Driver	d-airbag	4	88
  Europe	Audi	600	49	168	1871	2.778	1.690	2.225	3.272	3.446	Driver	manual-belts	4	89
  Europe	Audi	185	35	998	894	2.267	1.544	2.999	2.951	3.491	Driver	d-airbag	4	89
  Europe	BMW	1036	56	865		3.015	1.748	2.937		3.457	Driver	d-airbag	2	90
  US	Buick	815	47	1340	315	2.911	1.672	3.127	2.498	3.476	Driver	passive-belts	4	91

  Columns can be a mixture of text and numbers! The value for a missing value is the bullet , and no strange magic number. MANET also supports polygon-data for drawing maps. For this the datamatrix must have a variable, where the label start with '/P', followed by the name - in the below example the variable name is ID, resulting in the name '/PID'.

  /PID	Name of county	State	Area of county	Total population	Population density	Total white pop.	Total black pop.
  ...
  3036	ST CROIX	WI	0.044	50251	...
  3037	SAUK	WI	0.05	46975	939.5	46459	...
  3038	SAWYER	WI	0.079	14181	179.5	11962	18
  3039	SHAWANO	WI	0.054	37157	688.0	35251	...
  ...

  The datamatrix must be followed by a blank line, and by the polygons, for each entry in the matrix at least one. Each entry in the '/P' column must match a corresponding set of x/y coordinates of the polygon. The headder of a polygon consists of the '/P' entry (here 3038) a TAB the '/Pvarname' (here '/PID') and the number of edges in the polygon (here 9). Then the list of all x/y coordinates/edges follow. Note: The polygon must be closed!

  3038	/PID	9
  13.131045	10.775406
  13.136596	10.682844
  13.219110	10.691993
  13.226942	10.512785
  12.908023	10.497620
  12.902525	10.666969
  12.891342	10.671481
  12.889749	10.766183
  13.131045	10.775406

• Selection Tools & Modes

  Selecting and highlighting data is the key feature of MANET. Thus MANET offers different tools and modes for the selection of data, gathered in the selection-toolbox.

  Drag Box: Click and drag a rectangle, in which all points are selected.		Brush: Click and move the brush. All points covered by the brush will be highlighted transiently. Command-click to resize the brush.
  Standard Mode: New selection discards old ones.		INTERSECTION Mode: Cases are only selected, if they have been selected before.
  UNION Mode: New selections are added to previously selected.		XOR Mode: The status of the cases newrly selected is inverted.