error in fopen when use dlmread

Question

Skydriver 2018-10-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/423507-error-in-fopen-when-use-dlmread

评论： Star Strider 2018-10-12

file1 = dlmread('Matched_TNG20100518CISI_N.txt','', 5, 0) fid = fopen(file1, 'r') Axcel1=fscanf(file1,'%g %g %g %g %g\n',[4,Inf])';

Error using fopen File identifier must be an integer-valued scalar of type double.

Any one can help me?

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Answer 1

Star Strider 2018-10-11

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/423507-error-in-fopen-when-use-dlmread#answer_340947

在 MATLAB Online 中打开

Simply use the one line:

file1 = dlmread('Matched_TNG20100518CISI_N.txt','', 5, 0);

Then, check to see what ‘file1’ contains. It should be a matrix of numeric data that you can access directly.

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Skydriver 2018-10-11

在 MATLAB Online 中打开

This is my contain of file Time Series matched accelerogram: Tng20100518CISI_N.txt

Time Step: 0.01 s

     Time(sec)          Acc(g)      Vel(m/sec)          Dsp(m)  
       0.00000         0.00000         0.00000         0.00000  
       0.01000        -0.00000        -0.00000        -0.00000  
       0.02000        -0.00000        -0.00000        -0.00000  
       0.03000         0.00000        -0.00000        -0.00000  
       0.04000        -0.00000         0.00000        -0.00000  
       0.05000        -0.00000        -0.00000        -0.00000  
       0.06000        -0.00000        -0.00000        -0.00000  
       0.07000         0.00000        -0.00000        -0.00000  
       0.08000         0.00000        -0.00000        -0.00000  
       0.09000        -0.00000        -0.00000        -0.00000  
       0.10000        -0.00000        -0.00000        -0.00000  
       0.11000         0.00000        -0.00000        -0.00000  
       0.12000         0.00000        -0.00000        -0.00000  
       0.13000        -0.00000        -0.00000        -0.00000  
       0.14000         0.00000        -0.00000        -0.00000  
       0.15000         0.00000        -0.00000        -0.00000  
       0.16000        -0.00000        -0.00000        -0.00000  
       0.17000        -0.00000        -0.00000        -0.00000  
       0.18000        -0.00000        -0.00000        -0.00000  
But the answer is the same : Error using fopen
File identifier must be an integer-valued scalar of type double.