Load txt file and split into the matrix

Question

Dominik Cech 2021-9-4

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1446509-load-txt-file-and-split-into-the-matrix

编辑： Stephen23 2021-9-4

hello i have a txt file that i want to load and then it makes me 139x2 matrix then I chose data what i want and i makes me 121x1 matrix

clear all;

A=readtable('_cl_data_draha_nastroje2.txt')

B=A(19:139,2)

{'-9.4925,78.2355,49.0974,-0.5710247,0.7637159,0.3011125' }

{'-10.1414,78.2525,48.7282,-0.5694185,0.7634438,0.3048215' }

{'-10.7290,78.2728,48.3698,-0.5677140,0.7632457,0.3084751' }

{'-11.5366,78.3085,47.8449,-0.5650385,0.7630117,0.3139182' }

{'-12.2915,78.3486,47.3231,-0.5622776,0.7627737,0.3194060' }

{'-13.0160,78.3952,46.7976,-0.5595119,0.7624675,0.3249458' }

{'-13.7227,78.4474,46.2607,-0.5567769,0.7620374,0.3306032' }

{'-14.4119,78.5063,45.7151,-0.5541024,0.7614721,0.3363493' }

{'-15.0816,78.5713,45.1651,-0.5514732,0.7607848,0.3421750' }

{'-15.7296,78.6410,44.6150,-0.5488955,0.7599623,0.3480964' }

{'-16.3575,78.7147,44.0686,-0.5463235,0.7590584,0.3540636' }

{'-16.9692,78.7914,43.5245,-0.5437513,0.7580590,0.3601127' }

{'-17.5673,78.8709,42.9845,-0.5411592,0.7569990,0.3661956' }

{'-18.7357,79.0367,41.9120,-0.5359051,0.7546881,0.3784859' }

this is a part of B matrix and i have six values on each row and i would like to make two C and D 121x3 matrix

that will look like this C=[-9.4925, 78.2355, 49.0974; -10.1414,78, etc]

D=[-0.5710247, 0.7637159, ,0.3011125;-0.5694185, etc]

I would be glad for any help, thank you

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Stephen23 2021-9-4

编辑：Stephen23 2021-9-4

It looks like the importing did not work very well.

Most likely you should improve the importing with appropriate options/commands, rather than messing around with text.

Please upload a sample file by clicking on the paperclip button.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Chunru 2021-9-4

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1446509-load-txt-file-and-split-into-the-matrix#answer_780664

在 MATLAB Online 中打开

B = {'-9.4925,78.2355,49.0974,-0.5710247,0.7637159,0.3011125'    
     '-10.1414,78.2525,48.7282,-0.5694185,0.7634438,0.3048215'   
     '-10.7290,78.2728,48.3698,-0.5677140,0.7632457,0.3084751'   
     '-11.5366,78.3085,47.8449,-0.5650385,0.7630117,0.3139182'   
     '-12.2915,78.3486,47.3231,-0.5622776,0.7627737,0.3194060' } ;  % part of original B
B = str2double(split(string(B), ','))
B = 5×6
   -9.4925   78.2355   49.0974   -0.5710    0.7637    0.3011
  -10.1414   78.2525   48.7282   -0.5694    0.7634    0.3048
  -10.7290   78.2728   48.3698   -0.5677    0.7632    0.3085
  -11.5366   78.3085   47.8449   -0.5650    0.7630    0.3139
  -12.2915   78.3486   47.3231   -0.5623    0.7628    0.3194
C = B(:, 1:3)
C = 5×3
   -9.4925   78.2355   49.0974
  -10.1414   78.2525   48.7282
  -10.7290   78.2728   48.3698
  -11.5366   78.3085   47.8449
  -12.2915   78.3486   47.3231
D = B(:, 4:6)
D = 5×3
   -0.5710    0.7637    0.3011
   -0.5694    0.7634    0.3048
   -0.5677    0.7632    0.3085
   -0.5650    0.7630    0.3139
   -0.5623    0.7628    0.3194