Fgetl in a while loop.

2017 4 3
1 个回答
更新时间：2017 4 4
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In the code in the attached picture, does the first fgetl read the first line (Apple) and str2num(fgetl(file) read the second line (65.1)?

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Stephen23
Stephen23 2017-4-3
编辑：Stephen23 2017-4-3
You could very easily try it yourself: create that file, and write out that code. Then you would know what it does, you would gain experience with MATLAB, and you would have some working code. The more you try yourself, the more you read the documentation, the more you will learn.
As an aside: do not use str2num, the function str2double is more robust.
Jan
Jan 2017-4-3
fscanf is even smarter than str2double(fgetl).
Lucas Buckels
Lucas Buckels 2017-4-4
I was provided the code to study from and yes I did test it, but I was still confused as to why it works. I am trying to see if that is why this code works so I know for the future.
Lucas Buckels
Lucas Buckels 2017-4-4
I am still shaky using fgetl

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回答（1 个）

Walter Roberson
Walter Roberson 2017-4-4

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"does the first fgetl read the first line (Apple) and str2num(fgetl(file) read the second line"
Yes.
Question for you: what name is going to be reported if the file is empty?

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