Differences

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--- octave:octave [2008/08/06 16:09] – deva
+++ octave:octave [2009/04/23 13:54] (current) – deva
@@ Line 1: / Line 1: @@
 =====Octave syntax and library overview=====
+====Installing packages====
+Fetch the package files from [[http://octave.sourceforge.net/|octaveforge]].
+Then create (or add to) the file ~/.octaverc the following content:
+<code matlab>
+addpath(genpath('~/octave'))
+</code>
+And run ''pkg install packagename-1.0.0.tar.gz'' or whatever the package is called from inside octave.
+Now the package should be available.
+====plotting====
+<code matlab>
+h = [1,2,3,4,5];
+plot(h);
+xlabel("some numbers");
+print("myfile.pdf", "-dpdf");
+</code>
+This code plots a a vector with a label on the x-axis, and exports it to a pdf file.
+<code matlab>
+h=wavread('h.wav');
+hfft=abs(fft(h));
+semilogx(hfft(1:end/2))
+</code>
+This code loads an audiofile, and plots its frequency spectrum on a logartihmical scale.
 ====function====
@@ Line 28: / Line 52: @@
 sizeof(myarray) % get number of elements
 sizeof(myarray(1)) %get length of first string
+% Iterate strings in string array
+for str = myarray
+  disp(str)
+end
 </code>
 Note: Arrays are 1-based, not 0-based as they usually are in real programming languages.