將單元分成單列矩陣

我知道這看起來很平凡，但經過幾個小時瀏覽網絡以獲得答案，我開始放棄了！將單元分成單列矩陣

我正在閱讀一個ASCII（字符串+雙）文件使用Matlab來檢索我需要的數據。我使用下面的代碼：

fid = fopen(filename,'rt'); 
output_data = textscan(fid,'%s','Delimiter','\t');

它給了我一個單元格484 x 1.到目前爲止，這是預期的。

3.0 12.605 37.815 6.173 700.000  0.567  0.4212 0.8422 0.3014 74.897 49.907 30.974  -0.004 11.483  17.374  15.066  33.257 0.1870   50.605  0.8540 92.2821 
3.5 10.804 37.815 6.173 700.000 -0.729  0.4593 0.8480 0.3051 129.674 68.391 77.109  -0.002 15.490  21.910  15.165  79.908 0.2830   68.236  0.8461 92.5326 
4.0 9.454 37.815 6.173 700.000 -1.674  0.4731 0.8160 0.2855 199.409 85.954 138.884  -0.005 19.052  26.176  15.297 142.077 0.3371   86.101  0.8174 92.9654 
4.5 9.198 41.389 6.756 766.150 -1.351  0.4734 0.7812 0.2661 284.050 104.149 215.800  -0.004 22.081  30.708  15.461 220.582 0.3676   105.286  0.7897 94.0197 
5.0 8.993 44.963 7.340 832.300 -1.475  0.4729 0.7728 0.2617 389.300 127.195 312.298  -0.011 25.463  35.872  15.667 318.630 0.3871   128.221  0.7790 95.3147 
5.5 8.992 49.457 8.073 915.500 -1.475  0.4729 0.7728 0.2617 518.157 153.904 431.486  -0.015 28.794  41.955  15.922 439.302 0.4010   154.751  0.7770 96.8529

現在它變得棘手：我想創建一個矩陣每列「列」。您可以注意到，兩列之間的間距取決於字符數量。

含義，我需要一個列：

3.0  
3.5 
4.0 
etc...

下一個需要是：

12.605 
10.804 
9.454 
etc...

依此類推，直至最後一個

92.2821 
92.5326 
92.9654 
etc...

我發現了這片的代碼可以幫助，但我無法修改它以應付超過2列。任何幫助在這裏將不勝感激。

str_cellarr ={ 
'12:34' 
'13:45' 
'12:45'}; 
split1 = regexp(str_cellarr, ':', 'split'); 

split1_2cols = mat2cell(vertcat(split1{:}),size(str_cellarr,1),[1 1]); 
[var1,var2] = deal(split1_2cols{:}); 
var1 = str2double(var1) 
var2 = str2double(var2)

來源

2015-09-24 Ryderc

我假設你有一個字符串單元陣列：

C = {'3.0 12.605 37.815 6.173 700.000  0.567  0.4212 0.8422 0.3014 74.897 49.907 30.974  -0.004 11.483  17.374  15.066  33.257 0.1870   50.605  0.8540 92.2821' 
    '3.5 10.804 37.815 6.173 700.000 -0.729  0.4593 0.8480 0.3051 129.674 68.391 77.109  -0.002 15.490  21.910  15.165  79.908 0.2830   68.236  0.8461 92.5326' 
    '4.0 9.454 37.815 6.173 700.000 -1.674  0.4731 0.8160 0.2855 199.409 85.954 138.884  -0.005 19.052  26.176  15.297 142.077 0.3371   86.101  0.8174 92.9654' 
    '4.5 9.198 41.389 6.756 766.150 -1.351  0.4734 0.7812 0.2661 284.050 104.149 215.800  -0.004 22.081  30.708  15.461 220.582 0.3676   105.286  0.7897 94.0197' 
    '5.0 8.993 44.963 7.340 832.300 -1.475  0.4729 0.7728 0.2617 389.300 127.195 312.298  -0.011 25.463  35.872  15.667 318.630 0.3871   128.221  0.7790 95.3147' 
    '5.5 8.992 49.457 8.073 915.500 -1.475  0.4729 0.7728 0.2617 518.157 153.904 431.486  -0.015 28.794  41.955  15.922 439.302 0.4010   154.751  0.7770 96.8529'};

然後

M = regexp(c, '\s+', 'split'); %// split at spaces. Gives cell array of cell arrays of strings 
M = vertcat(M{:}); %// convert into 2D cell array of strings 
M = str2double(M); %// convert into numeric 2D array (matrix)

給出了所有的數字矩陣：

M = 
    Columns 1 through 12 
    3.0000 12.6050 37.8150 6.1730 700.0000 0.5670 0.4212 0.8422 0.3014 74.8970 49.9070 30.9740 
    3.5000 10.8040 37.8150 6.1730 700.0000 -0.7290 0.4593 0.8480 0.3051 129.6740 68.3910 77.1090 
    4.0000 9.4540 37.8150 6.1730 700.0000 -1.6740 0.4731 0.8160 0.2855 199.4090 85.9540 138.8840 
    4.5000 9.1980 41.3890 6.7560 766.1500 -1.3510 0.4734 0.7812 0.2661 284.0500 104.1490 215.8000 
    5.0000 8.9930 44.9630 7.3400 832.3000 -1.4750 0.4729 0.7728 0.2617 389.3000 127.1950 312.2980 
    5.5000 8.9920 49.4570 8.0730 915.5000 -1.4750 0.4729 0.7728 0.2617 518.1570 153.9040 431.4860 
    [...]

所以，你想要的列矩陣只是M(:,1)，M(:,2)等

來源

2015-09-24 10:53:24

將單元分成單列矩陣

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