Rewriting a loop construct

2014 2 1
1 个回答
回答已采纳
更新时间：2014 2 1
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0 个投票

Just a thought guys, how would you rewrite this loop construct?
if i < 4
subplot(4,1,i+1);
plot(x,y);
title('Original');
end
I did try to write it as follows but something went wrong outside the loop:
subplot(4,1,i+1);
plot(x,y);
title('Original');
if i==2
break
end
What do you think of other loop constructs?

5 个评论
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Amit
Amit 2014-2-1
编辑：Amit 2014-2-1
where is the loop? I mean what you're trying to do?
Ayesha
Ayesha 2014-2-1
there's this if loop which I'm wondering if there could be an alternative for it. I'll write the code again which is my main subject of concern:
if i < 4
subplot(4,1,i+1);
plot(x,y);
title('Original');
end
Walter Roberson
Walter Roberson 2014-2-1
That is not a loop. "if" does not cause looping: the body of the "if" is done once if the condition is true. Using a loop requires "for" or "while"
Ayesha
Ayesha 2014-2-1
So could if be replaced by any other construct?
Walter Roberson
Walter Roberson 2014-2-1
What kind of alternative were you hoping for? It's just an "if" statement with a simple body.

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 采纳的回答

Sneheet
Sneheet 2014-2-1
编辑：Sneheet 2014-2-1

0 个投票

if you want to plot for i=1 to i=4,
for i=1:4
subplot(4,1,i+1);
plot(x,y);
title('Original');
end

1 个评论
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Walter Roberson
Walter Roberson 2014-2-1
编辑：Walter Roberson 2014-2-1
To be consistent, the upper end of the loop should be 3 rather than 4. The lower end could be adjusted to 0 instead of 1.

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