gibson:teaching:spring-2016:math445:lecture:scripts
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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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gibson:teaching:spring-2016:math445:lecture:scripts [2016/02/01 19:10] gibson [logarithmic plots] |
gibson:teaching:spring-2016:math445:lecture:scripts [2016/02/03 13:54] (current) gibson [Logarithmic plots] |
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| <code> | <code> | ||
| Matlab scripting | Matlab scripting | ||
| - | plot, semilogy, semilogx, loglog | + | linestyles and plot modifiers: |
| - | xlabel, ylabel, title, legend, axis, grid, clf, | + | xlabel, ylabel, title, legend, axis, grid, clf, |
| - | linestyles | + | |
| load, save | load, save | ||
| - | what, pwd | + | plot, semilogy, semilogx, loglog |
| + | what, who, pwd, ls | ||
| </code> | </code> | ||
| Line 51: | Line 51: | ||
| {{ :gibson:teaching:spring-2016:math445:sincos.png?direct&400 |}} | {{ :gibson:teaching:spring-2016:math445:sincos.png?direct&400 |}} | ||
| - | ===== Markers and line styles ===== | + | ===== Line styles and markers ===== |
| The above plotting script used the matlab **linestyle** codes '' 'b-' '' and '' 'r-' '' to generate blue and red curves for $\cos x$ and $\sin x$. Matlab's **help** function provides a pretty good description of how line and marker style codes work. | The above plotting script used the matlab **linestyle** codes '' 'b-' '' and '' 'r-' '' to generate blue and red curves for $\cos x$ and $\sin x$. Matlab's **help** function provides a pretty good description of how line and marker style codes work. | ||
| Line 106: | Line 106: | ||
| </code> | </code> | ||
| - | ===== logarithmic plots ===== | ||
| - | |||
| - | Logarithmic plots are useful when the data you're plotting varies over many orders of magnitude. Logarithmic plots can also highlight certain functional relationships | ||
| - | |||
| - | ^ plot command ^ functional relationship ^ | ||
| - | | **plot(x,y)** ^ $y = mx + b$ ^ | ||
| - | | **semilogy(x,y)** | $y = c \; 10^{mx}$ ^ | ||
| - | | **semilogx(x,y)** | $\log y = mx + b$ ^ | ||
| - | | **loglog(x,y)** | $y = c x^m$ ^ | ||
gibson/teaching/spring-2016/math445/lecture/scripts.1454382621.txt.gz · Last modified: 2016/02/01 19:10 by gibson
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