end of line

hi, what is the command that correspond end of line? I want read file and print it to array. the rows in that file are not equal in length. so, I need know what is the command deal with end of line .

thanks

Answer 1

[Sean de Wolski]

in textscan there is an end of line setting that gives you options:

doc textscan

Answer 2

[Walter Roberson]

There is no specific command to write out end of line. There are multiple ways of doing this, the most straight-forward of which was already given to you when you asked this question earlier in http://www.mathworks.com/matlabcentral/answers/15614-new-line

Answer 3

[Jan]

It is not clear, what you mean by "command". There are two characters for a line break: CHAR(13) and CHAR(10), which can be created by sprintf('\r') and sprintf('\n') also.

What do you exactly mean by "print it to an array"? Actually you can print to the command window, to a file and on paper. Most likely the question would get more clear, if you post the relevant code.

[Walter Roberson]

The number of characters in a line break depends on the operating system and program representation. MS Windows text files use the pair of characters Jan noted; Unix-like systems use just linefeed, char(10).

[Jan]

And all Windows editors except the "Editor" accept the CHAR(10) also. E.g. M-files are written with this line break.

[huda nawaf]

hi,

if I have file as follow:

ex.:1 2 3 11 0 1 2

4 5 6 2

1 0 2 4 5

in the file, the rows have not equal length .

what I want is to place this file in array as we show it

i.e three rows , the length of first row is 7, second is 4,and third is 5.

thanks in advance

Answer 4

[Oleg Komarov]

EDITED

myfile.txt contains:

1 2 3 11 0 1 2
4 5 6 2
1 0 2 4 5

% To import

fid = fopen('C:\myfile.txt')
out = textscan(fid, '%f%f%f%f%f%f%f', 'CollectOutput',1,'EmptyValue',NaN)
fclose(fid);

If your version doesn't allow 'CollectOutput', then:

 out = textscan(fid, '%f%f%f%f%f%f%f','EmptyValue',NaN)
 out = [out{:}]

The result:

1   2   3  11   0   1   2
4   5   6   2 NaN NaN NaN
1   0   2   4   5 NaN NaN

[huda nawaf]

is this code for all txt file.

I ran it with my txt. I got this error:

??? Error using ==> textscan

Empty Value must be a scalar double.

Error in ==> movieitem at 23

out = textscan(fid, '%f%f%f%f%f%f%f', 'CollectOutput',1,'EmptyValue','NaN')

thanks

[huda nawaf]

hi,

I ran it for

1 2 3 11 0 1 2

4 5 6 2

1 0 2 4 5

also, I got the same previous error

thanks

[Walter Roberson]

Oleg had a typo, and should have used NaN instead of 'NaN'

However, EmptyValue of NaN is the default and need not be specified. It is enough to use

out = textscan(fid, '%f%f%f%f%f%f%f', 'CollectOutput',1);

and of course to access out{1} to get the array of values.

[huda nawaf]

hi,I got this error when I did your suggestion:

??? Error using ==> textscan

Unknown option 'CollectOutput'.

Error in ==> movieitem at 23

out = textscan(fid, '%f%f%f%f%f%f%f', 'CollectOutput',1,'EmptyValue',NaN)

thanks

[Oleg Komarov]

@Walter: typo corrected.

@huda: remove 'CollectOutput',1

out = textscan(fid, '%f%f%f%f%f%f%f','EmptyValue',NaN)

out = [out{:}];