How to classify data from text file?

Question

hj lee 2020-11-28

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/666683-how-to-classify-data-from-text-file

回答： Mathieu NOE 2020-11-29

采纳的回答： Mathieu NOE

Hello, Here is the text file ' data.txt '

here is the sample of data.

16:21:32.556 AcX= 17080 AcY= 764 AcZ= -3244 GyX= -4144 GyY= -8583 GyZ= 652 Tmp= 36.98562,641

16:21:32.693 AcX= 17016 AcY= -700 AcZ= -1760 GyX= -4144 GyY= -8709 GyZ= 260 Tmp= 35.50484,607

16:21:32.736 AcX= 17716 AcY= 1432 AcZ= -3916 GyX= -4144 GyY= -8972 GyZ= 750 Tmp= 37.26528,611

16:21:32.825 AcX= 17016 AcY= 1436 AcZ= -2892 GyX= -4144 GyY= -9139 GyZ= 199 Tmp= 35.64521,612

16:21:32.917 AcX= 17156 AcY= 1008 AcZ= -3624 GyX= -4160 GyY= -9302 GyZ= 776 Tmp= 36.75466,586

16:21:33.007 AcX= 17224 AcY= 2776 AcZ= -3508 GyX= -4160 GyY= -9425 GyZ= 299 Tmp= 36.51524,602

16:21:33.097 AcX= 16328 AcY= 180 AcZ= -2648 GyX= -4160 GyY= -9431 GyZ= 519 Tmp= 35.68504,598

I want to classify data such as

AcX={17080 17016 17716...}

AcZ={-3244 -1760 -3976 -2892...}

Time={32.556 32.693 32.825...}

Tmp={36.98562... 35.50484...}

but I have no idea how to classify it.

Please refer this sample is kind of text file.

Thanks!

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Answer 1

Mathieu NOE 2020-11-29

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https://ww2.mathworks.cn/matlabcentral/answers/666683-how-to-classify-data-from-text-file#answer_559338

在 MATLAB Online 中打开

hello

when you say "classify" I believe you meant access the data inside the txt file ?

you can use readtable like this :

T = readtable('dataX.txt')
AcX= T.Var3; 
AcZ= T.Var5;
% and so on ...
% T =
% 
%   7×15 table
% 
%         Var1          Var2      Var3       Var4      Var5      Var6      Var7       Var8      Var9      Var10      Var11     Var12      Var13     Var14           Var15      
%     ____________    ________    _____    ________    ____    ________    _____    ________    _____    ________    _____    ________    _____    ________    ________________
% 
%     16:21:32.556    {'AcX='}    17080    {'AcY='}     764    {'AcZ='}    -3244    {'GyX='}    -4144    {'GyY='}    -8583    {'GyZ='}     652     {'Tmp='}    {'36.98562,641'}
%     16:21:32.693    {'AcX='}    17016    {'AcY='}    -700    {'AcZ='}    -1760    {'GyX='}    -4144    {'GyY='}    -8709    {'GyZ='}     260     {'Tmp='}    {'35.50484,607'}
%     16:21:32.736    {'AcX='}    17716    {'AcY='}    1432    {'AcZ='}    -3916    {'GyX='}    -4144    {'GyY='}    -8972    {'GyZ='}     750     {'Tmp='}    {'37.26528,611'}
    