CODEWITHSUNDEEP
matlab
Cabs
Cabs

Reputation: 7

Writing numbers into a file by column

I would like to use MATLAB to write two vectors of numbers into a file and obtain a result like that: 

  0 ; [    0]
  1 ; [    1]
  2 ; [    2]
  3 ; [    3]
 ...; [  ...]

I tried and obtained that code: 

h=[0:1:100];

a=[0:1:100];

formatSpec = '%3d ; [%5d]\r\n';

fileID = fopen('Write_in_file.txt', 'w');

fprintf(fileID,formatSpec,h,a)

Unfortunately, here's the result of my code : 

  0 ; [    1]
  2 ; [    3]
  4 ; [    5]
  6 ; [    7]

Could you help me to get the result that I want? I don't know how to do that actually...

Upvotes: 0

Views: 40

Answers (1)

hbaderts
hbaderts

Reputation: 14371

You'll have to concatenate a and h into one array. Otherwise fprintf will first go through all numbers of h, and then through all numbers of a. As MATLAB takes the values column-wise, you need to make sure that the vector looks like this:

0    1    2    3    ...
0    1    2    3    ...

which can be done with [h;a]. So, just call

h=[0:1:100];
a=[0:1:100];
formatSpec = '%3d ; [%5d]\r\n';

fileID = fopen('Write_in_file.txt', 'w');
fprintf(fileID,formatSpec,[h;a])

Upvotes: 1

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