Read dada from a file
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So, I have an input text file(.txt) looking something like this: X:0.34, y:0.45, z:0.32, t:0.002
How can I read each variable separately like a column for x, one for y... and store them into matlab?
7 件のコメント
Adam Danz
2019 年 7 月 20 日
編集済み: Adam Danz
2019 年 7 月 20 日
We can work with that! In the image you shared earlier, each set of x:... Y:... Z:... Ts:... has it's own row. But in the text you shared above, it looks like there can be multiple X,Y,Z,Ts per line. In fact, there are no line breaks in the text you shared so all of that is on 1 line. These details are important to set straight before designing a solution.
採用された回答
Adam Danz
2019 年 7 月 20 日
Attached is the text file you described named xyz.txt.
% Read in the file
t = fileread('xyz.txt');
% Split text where '>' marks end of each row
ts = strsplit(t,'>');
% Extract X value
[Xc,~] = regexp(ts,'X:(.*),Y','tokens','match');
% Extract Y value
[Yc,~] = regexp(ts,'Y:(.*),Z','tokens','match');
% Extract Z value
[Zc,~] = regexp(ts,'Z:(.*),Ts','tokens','match');
% Extract Ts value
[Tsc,~] = regexp(ts,'Ts:(.*)$','tokens','match');
% Create table
T = table(str2double(cellfun(@(x)x{:},[Xc{:}],'UniformOutput',false))', ...
str2double(cellfun(@(x)x{:},[Yc{:}],'UniformOutput',false))', ...
str2double(cellfun(@(x)x{:},[Zc{:}],'UniformOutput',false))', ...
str2double(cellfun(@(x)x{:},[Tsc{:}],'UniformOutput',false))', ...
'VariableNames', {'X','Y','Z','Ts'});
Result
T =
5×4 table
X Y Z Ts
_______ ______ ______ _________
0.0511 3.1803 7.7935 0
-0.0519 3.2234 7.602 0.0050049
-0.2841 3.2641 7.5804 0.0099792
-0.6074 3.3622 7.7911 0.014954
-0.8085 3.458 8.1622 0.019928
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