How do i resize a large dataset

I am trying to copy and paste a dataset from the internet and resize it into a matrix (300x14) however when copying the dataset it appears in the form below

1 2 3 4 5 6 6 7 8 8 8 9

2 2

3 2 3 4 5 6 7 7 8 6 4 3

1 3 ...

how do i resize this without applying semicolons on every other row?

Thanks

Answer 1

[Image Analyst]

You could paste it into a txt file then create the matrix with this code:

fid = fopen('text.txt'); % Open the text file.
numbers = textscan(fid, '%d');
numbers = reshape(numbers{1}, 14, [])'
fclose(fid);

[Image Analyst]

By the way, 300 x 14 is hardly "large" - it's microscopic.

[The breadwinner]

now all my numbers are rounded to integer values when the original data was all to 3 d.p . is there any way to get rid of this.

thanks

[Walter Roberson]

textscan with '%f' instead of '%d'

[Image Analyst]

Walter's right. And this highlights the importance of attaching your data. The data you posted was integers so I used %d. If you had attached your text file we would have known you had floating point numbers and we would have gotten you the correct answer immediately.

Answer 2

[A. Ragab]

if i have large input data(hex),and i need to make fragmention in to small data each size 32 hex to be used as input of AES

[Image Analyst]

Not sure how this is an Answer to @The breadwinner's question.

[Walter Roberson]

See https://www.mathworks.com/matlabcentral/answers/1468586-conversion-jpeg-image-into-hexadecimal-file-packets-containing-84-hexadecimal-characters#answer_803281