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## Re: integration using Quad or Simpsons 1/8th or Trapezoid of a data file

**From**: |
Hendrik Naumann |

**Subject**: |
Re: integration using Quad or Simpsons 1/8th or Trapezoid of a data file!! |

**Date**: |
Thu, 1 Nov 2001 11:36:30 +0100 |

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An small addition.
>* On the other hand, if it isn't highly*
>* accurate, or you simply want a quick and not necessarily highly*
>* accurate answer, using quad might be like using a hammer to swat a*
>* fly, so try this: put your data in a 2xm matrix d, where each row*
>* of d is an ordered pair (x,y) of your data in abscissa/ordinate*
>* format. *
The only thing you have to check on this point is that you don't have
two points with the same abscissa (x-value). Otherwise you will get
realy suprising effects. You can check this with the diff function.
For points with the same abscissa you may take the mean of these
values.
- --
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**Re: integration using Quad or Simpsons 1/8th or Trapezoid of a data file!!**,
*Hendrik Naumann* **<=**