Geoscientific Data Analysis Using Unix and GMT: Practical Methods and Techniques
Geoscientific data analysis using
UNIX and GMT
6
/8: GMT IV
x-y plots and fitting curves
Thorsten Becker
The University of Texas at Austin
April 2021
What to do with rough/irregularly
spaced data?
Use splines?
Note
curve
outside
data
range
-> use
symbols
and lines
How to process noisy data
Box car filter
Min/Median/Max filter
Fitting a polynomial
Fitting a polynomial – always plot
the residual
Fitting a line
Correlation
Pearson (linear) correlation coefficient
Spearman rank correlation
Correlation
Gnuplot – plotting functions
Gnuplot
Gnuplot – plotting data
Gnuplot – fitting data
Gnuplot – fitting data
T
o
o
l
s
:
g
3
d
a
t
a
No class next Thursday
Friday is on Paraview 3-D
visualization and other topics
Explore techniques for analyzing geoscientific data using Unix and GMT, including handling irregularly spaced data, fitting curves, processing noisy data, and utilizing filtering methods. Learn about spline usage, polynomial fitting, correlation coefficients, and Gnuplot functionalities.
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Presentation Transcript
Geoscientific data analysis using UNIX and GMT 6/8: GMT IV x-y plots and fitting curves Thorsten Becker The University of Texas at Austin April 2021
What to do with rough/irregularly spaced data?
Note curve outside data range -> use symbols and lines
Fitting a polynomial always plot the residual
Pearson (linear) correlation coefficient Correlation Spearman rank correlation
No class next Thursday Friday is on Paraview 3-D visualization and other topics
