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Topic: Shifting data
Replies: 2   Last Post: Feb 18, 2010 9:49 AM

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 Ben Posts: 6 From: Netherlands Registered: 2/18/10
Shifting data
Posted: Feb 18, 2010 9:02 AM

Hello,

I want to start two graph's at the same y-value (trig) independent of there corresponding x-value so I can compare those graph's.

So I've made a function which calculates the x-value of this y-value by interpolation.
This gives me the exact x-value of the point of intersection.

In a next step I want to plot both graphs with the intersection point in both graphs at the same x-value.
For this step I would like to shift the data from this (non-existing) interpolated intersect x-point.

The problem is that this intersect x-value is between to measurement points and the question is whether and how it is possible to shift the data over the x-axis to a certain point.

For example:
Working with array G.
The intersect point is between data point A(0.2, 1) and data point B(0.8, 2)
The intersect point has coordinates (1.333,0.4)

I want to shift array G in such a way that intersect point (y=0.4) will have a x=0.

Date Subject Author
2/18/10 Ben
2/18/10 Jan Simon
2/18/10 Ben