String of matlab script

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Alexa Potanina
Alexa Potanina 2011-6-22
评论： Walter Roberson 2015-9-20
Hi all,
Can you please help me to understand what does it mean: fprintf('\n%s.%s.%s\n', tt(5:6), tt(3:4), tt(1:2))
I don't know what tt means.... This string is about creation of filelist. I must understand how my script wirks but it's very difficult to me, because I'm not a programmist((((((((((
  2 个评论
Sean de Wolski
Sean de Wolski 2011-6-22
What's a progammist? Apparently they've played a lot of poker according to Google.
Alexa Potanina
Alexa Potanina 2011-6-22
Wow, sorry(((((Sometimes I have to speak Russian in my lab and I changed it in my mind and in my brain((((
I mean programmer. I'm biologist.
Sorry))))))
It was very funny, when I read this)))

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采纳的回答

Paulo Silva
Paulo Silva 2011-6-22
\n means new line %s means print a string tt can be a string,vector or array
When you say tt(5:6) you are selection elements inside tt, in this case it's element 5 and 6 where the numbers correspond to the index.
Example
tt='My Array'
tt(5:6) gives you the string 'rr'

更多回答（1 个）

Arturo Moncada-Torres
tt must be a string (an array of characters) previously defined in your code. What the code line does is display in console the elements of tt on reverse order and with a dot:
fprintf('\n%s.%s.%s\n', tt(5:6), tt(3:4), tt(1:2));
^ ^ ^ ^ ^ ^
|__|__|________| | |
|__|_________________| |
|___________________________|
Try and run the following:
tt = 'aabbcc';
fprintf('\n%s.%s.%s\n', tt(5:6), tt(3:4), tt(1:2));
You will get the following result in console:
cc.bb.aa
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Arturo Moncada-Torres
Arturo Moncada-Torres 2011-6-23
My pleasure. Thanks to all of you =)
Walter Roberson
Walter Roberson 2015-9-20
Kiniena comments
Moncada-Torres illustrates how the code works, and gives a simpler code to explain what the code does.

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