TNCHSGraph, Version 2.0
A Delphi 3 component by Jaco Voorham

TNCHSGraph lets you use child-growth charts in your application,
to evaluate the nutricional status of children, and follow their growth
patterns.

The component uses the NCHS reference population data of median values
and standard deviations. It optionally shows the median-line, the lines
1 and 2 standard deviations above and under the median value.

You need to install the NCHSGraph.dcu component, but keep the nchsdata.dcu unit
with it, which contains the reference data.

Important stuff:

var Values:TstringList; The list to store your values in to be plotted on the
                    graph; format: x-value, #9 character, y-value. you're responsible for it's maintenance (cleaning up old values) !
procedure drawline: Fire this procedure to draw the values in the stringlist on the chart
function ZScore(AType:TGraphType;ASex:TSexType;First,Second:Single):Single;
		Use this function to calculate the z-score value.
		Type declarations:
		TGraphType=(WeightForAge,WeightForStature,WeightForLength,StatureForAge,LengthForAge);
		TSexType=(Boy,Girl);
		First and Second are your measurements: When using a
		WeightForAge evaliation, First will be Age and Second will be Weight.

See the demo-project on how to use it.


TNCHSGraph is freeware, but I expect to show up in the credits of your
program if you use it.

For any comments please contact me at jvp@bno.com.br
For other product of yours sincerely, have a look at http://www.bno.com.br/jvp/Reference/others.html

Version History:
Version 1.0	August 27 1998. Standard funcionality
Version 2.0	September 12 1998. Added more freedom in color-choices.
		Added the function function ZScore(AType:TGraphType;ASex:TSexType;First,Second:Single):Single;
		which allows you to actually calculate the z-score value with your measurements.

And by the way, thanks to all these people that have sent me positive reactions!
Great to see that there is an interest for very specific components... now you got me motivated !
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