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Use for question relating the the techniques of data analysis.

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Finding wave vector using Data

I have 50 data for each velocity components ux, uy in vector form in two columns. so $\mathbf{U} = u_x\hat{x}+u_y\hat{y}$. Moreover, $\mathbf{U} = \mathbf{U_0} + \delta \mathbf{u}$ where the equilibri …
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Wave vector components from 2 column data

if I have 10 data in each column for speed (2D), how to connect those data as wave form? I need to find the components of wave vector ($k_x, K_y$). I request any suggestions regarding this.
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