How to read a text file on a specific line having string and numeric data

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Yrobel Lima 2019-4-25

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https://ww2.mathworks.cn/matlabcentral/answers/458408-how-to-read-a-text-file-on-a-specific-line-having-string-and-numeric-data

评论： Yrobel Lima 2019-4-25

file.txt

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Hi,

How can I read and convert data from a text file on specific lines to a matrix.

The file I have has several formats, for example:

    ................................................................
    .         .                .                      .            .
    .  POINT  .   COORDINATE   .    RATE VALUES       .   MEDIUM   .
    .         .                .                      .            .
    ................................................................
    .         .                .                      .    FA      .
    .     1   .       0.00     .    0.27504825E+13    .            .
    .     2   .      11.32     .    0.31004130E+13    .            .
    ----------------------------------------------------------------
    .         .                .                      .    FA      .
+   .     3   .      11.32     .    0.31004130E+13    .            .
    .     4   .      22.65     .    0.34565566E+13    .            .
    ----------------------------------------------------------------
    etc...

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Answer 1

Image Analyst 2019-4-25

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https://ww2.mathworks.cn/matlabcentral/answers/458408-how-to-read-a-text-file-on-a-specific-line-having-string-and-numeric-data#answer_372183

You forgot to attach the file with the paper clip icon. Please do so.

You could read in a line at a time with fgetl() and, if the line does not contain an FA or -----, use strsplit() with that dot character as the delimiter to split up the line into 3 numbers.