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.txt · Last modified: 2014/09/18 12:21 by gibson