Physics 503: Scientific Computing
Homework #6
Topic:
Regression
Due:
Thurs. Mar. 11 by the beginning of class
 DON’T forget to include output and plot printouts!
(please email your code to
[email protected]
)
Assignment
1.
Get to work on your midterm project!
2.
Download some experimental data from my website (using url library or just rightclick and
save the file).
This data shows equilibrium dynamics by measuring a vibrational frequency
versus time. Perform a nonlinear fit to the data using the following nonlinear model:
f
(
t
)
=
A
1
−
e
−
t
τ
⎛
⎝
⎜
⎞
⎠
⎟
+
f
0
where
A
,
,
f
o
are free parameters. Use the curve_fit() function in
scipy to fit this model to the data and report the values of these parameters (make sure to
include units!). Of particular interest is the time constant.
Plot the fitted model and data
together on a plot with appropriate labels and a legend.
3.
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This note was uploaded on 10/05/2010 for the course PHYS phy503 taught by Professor Gladden during the Spring '09 term at Ole Miss.
 Spring '09
 Gladden
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