Tutorial (.pdf) - University of Melbourne

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Journal • You can record everything you do in a journal file: IDL> journal IDL> ; do stuff (will go to idlsave.pro) IDL> print,’hello’ hello IDL> journal IDL> @idlsave.pro hello IDL> © Robert E. Scholten 2001, 2005 6
Main Level Programs In your favourite editor (emacs, nano, pico) edit the idlsave.pro file and save it as fred.pro: a=6 b=[1,2,3] print,a,b c=a*b print,c end In IDL: IDL> .run fred % Compiled module: $MAIN$ 6 1 2 3 6 12 18 Main level program file variables exist at the MAIN program level. © Robert E. Scholten 2001, 2005 7
Page 1 and 2: IDL tutorial for physicists 0011 00
Page 3 and 4: Help! • Online hypertext help: ?
Page 5: Sample IDL session baker~> idl IDL
Page 9 and 10: Signal processing ; add some more c
Page 11 and 12: Signal processing… ; make plot a
Page 13 and 14: Frequency domain filtering ; freque
Page 15 and 16: Multiple plots © Robert E. Scholte
Page 17 and 18: Contrast tv,img>100 ; whichever is
Page 19 and 20: Resizing ; resizing img2=rebin(img,
Page 21 and 22: Fourier image processing ; experime
Page 23 and 24: 3d surfaces window,xsize=512,ysize=
Page 25 and 26: Programming: procedures pro factori
Page 27 and 28: Printing with IDL: postscript • P

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