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I have too many lines of code and I want to reduce the line count.

For example, I have a notebook with 2000 lines of code, and i want to hide some of it so there are less than, say, 200 lines. Can I put some of the code in somewhere else and then use it in my main code?

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You can insert a few section headers (using the Format/Style menu). If you double click on the cell bracket belonging to a header any code between that header and the next one will be hidden. –  Sjoerd C. de Vries Apr 30 '13 at 17:54
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closed as too localized by m_goldberg, István Zachar, Silvia, Yves Klett, Sjoerd C. de Vries Apr 30 '13 at 17:55

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1 Answer

One way is to put some of the code in a separate file, and then execute the code in the file using <<. This is the function Get which "reads in a file, evaluating each expression in it and returning the last one."

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thank you.but i can't try it correctly.for example i made a file "test1" and put code 2+3 then saved it in D:\ now i make new file and write' Get["test1", Path -> {D:\}] '.and then press shift+enter but it doesn't work.could you help me more please –  david Apr 30 '13 at 9:23
    
@david, try a=2+3 and then evaluate a in the notebook. –  user21 Apr 30 '13 at 9:46
    
could you write full code for me please? i am confused... –  david Apr 30 '13 at 9:56
    
David's point is that if you put 2+3 in the test file and it executes it, you have no way of accessing the results of the calculation. If you set a=2+3 then when you check after the Get, the value of a will be set. –  bill s Apr 30 '13 at 9:57
    
i know.i edited it but when i try this i still have some errors .i have problem with Get[] i think i wrong path –  david Apr 30 '13 at 10:01
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