gibson:teaching:fall-2014:math445:lecture6-diary
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gibson:teaching:fall-2014:math445:lecture6-diary [2014/09/18 12:19] gibson [Graphical data analysis of log-linear relations] |
gibson:teaching:fall-2014:math445:lecture6-diary [2014/09/18 12:21] (current) gibson [Graphical data analysis of log-linear relations] |
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| ===== Graphical data analysis of log-linear relations ===== | ===== Graphical data analysis of log-linear relations ===== | ||
| - | <code matlab> | + | ==== example 1: a linear relationship ==== |
| - | % ======================================================================= | + | |
| - | % Ok. Let's move on the graphical data analysis | + | |
| + | <code matlab> | ||
| % Load datafile 'data1.asc' into matlab with 'load' command | % Load datafile 'data1.asc' into matlab with 'load' command | ||
| >> D = load('data1.asc'); | >> D = load('data1.asc'); | ||
| Line 271: | Line 270: | ||
| <code matlab> | <code matlab> | ||
| - | % Perfect! The functional relation between y and x is y = -0.49 x + 19 | + | % Perfect! So the functional relation between y and x is y = -0.49 x + 19 |
| + | </code> | ||
| + | ==== example 2: a log-linear relationship ==== | ||
| - | % Ok, let's move on the the next data file and try to figure out its y = f(x) relation. | + | <code matlab> |
| + | % Load the next data file and try to figure out its y = f(x) relation. | ||
| >> D = load('data3.asc'); | >> D = load('data3.asc'); | ||
| >> xdata = D(:,1); | >> xdata = D(:,1); | ||
gibson/teaching/fall-2014/math445/lecture6-diary.1411067954.txt.gz · Last modified: 2014/09/18 12:19 by gibson
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