Read table in .txt to MATLAB

조회 수: 3 (최근 30일)
Karl Zammit
Karl Zammit 2021년 4월 17일
댓글: Karl Zammit 2021년 4월 19일
I have the following .txt fil and wish to save the columns seperately for further polar extrapolation. However, the following code is resulting in some funny values.
I appreciate any help. I think I am reading the data wrong as I dont fully understand the concept.
Thanks in advance.
%Read data file: Drag and Lift Coeff.
saveFlCdCl = 'Save_CdCl.txt'; %File name
finputCdCl = fopen(saveFlCdCl); %Open file for reading
dataBuffer = textscan(finputCdCl, '%f %f %f ', 'CollectOutput', 1, ... %Read data from file
'Delimiter', '', 'HeaderLines', 12);
%Get values
PolarAoA=dataBuffer{1}(:,1);
PolarCl=dataBuffer{1}(:,2);
PolarCd=dataBuffer{1}(:,3);
fclose(finputCdCl); %Close file

채택된 답변

Walter Roberson
Walter Roberson 2021년 4월 19일
%Read data file: Drag and Lift Coeff.
saveFlCdCl = 'https://www.mathworks.com/matlabcentral/answers/uploaded_files/586711/Save_CdCl.txt'; %File name
t = readtable(saveFlCdCl, 'readvariablenames', false, 'headerlines', 12);
t.Properties.VariableNames = {'alpha', 'CL', 'CD', 'CDp', 'CM', 'Top_Xtr', 'Bot_Xtr'};
t(1:5,:)
ans = 5×7 table
alpha CL CD CDp CM Top_Xtr Bot_Xtr _____ _______ _______ _______ _______ _______ _______ -10 -0.6476 0.02064 0.01596 -0.1001 0.9787 0.0217 -9.5 -0.583 0.01903 0.0142 -0.1033 0.9748 0.0229 -9 -0.5143 0.01752 0.01241 -0.1069 0.9722 0.0245 -8.5 -0.4585 0.01575 0.01051 -0.1079 0.9641 0.0263 -8 -0.3959 0.01462 0.00923 -0.1096 0.9573 0.0282
t(end-4:end,:)
ans = 5×7 table
alpha CL CD CDp CM Top_Xtr Bot_Xtr _____ ______ _______ _______ _______ _______ _______ 18 1.4983 0.09514 0.09032 -0.0493 0.0172 1 18.5 1.4798 0.10449 0.09981 -0.0514 0.0166 1 19 1.4728 0.11262 0.10816 -0.0538 0.0161 1 19.5 1.465 0.12103 0.11678 -0.0568 0.0156 1 20 1.4565 0.12969 0.12561 -0.0602 0.0151 1
  댓글 수: 1
Karl Zammit
Karl Zammit 2021년 4월 19일
Needed the seperate columns but got to it in the end thanks to your answer. Much appreciated

댓글을 달려면 로그인하십시오.

추가 답변 (1개)

David Hill
David Hill 2021년 4월 17일
t=readtable('Save_CdCl.txt');
alpha=t.alpha;
names=t.Properties.VariableNames;
for k=1:length(names)
writetable(t(:,k),names{k});
end
  댓글 수: 1
Karl Zammit
Karl Zammit 2021년 4월 19일
This shows up for your solution

댓글을 달려면 로그인하십시오.

카테고리

Help CenterFile Exchange에서 Data Type Identification에 대해 자세히 알아보기

태그

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by