Increasing Buffersize while importing data

I am importing data from txt file to matlab.But the programmme gives error:"Buffer overflow (bufsize = 4095) while reading string from" I am using textscan command in the programme.So buffer size should be increased.how?

Answer 1

[per isakson]

Hint:

    textscan( ..., 'BufSize', new_size )

See the help.

[Tinkul]

If new_size is not specifiedor i don't know the new sizeand the size is very big then what i have to write.....

[per isakson]

The documentation does not mention an upper limit AFAIK. Try with a number, which you think is large enough.

[Tinkul]

sorry, still it is not working.I have full of data in txt file.Then what may be the new size.

[per isakson]

Try

    textscan( ..., 'BufSize', new_size, 'ReturnOnError', false )

What message do you get? Next multiply new_size by ten. What message do you get? Next try

    str = fileread( file_spec );
    ix  = strfind( str, char(10) );
    mx  = max( ix );

What is the value of mx?

[Tinkul]

I m writing like that x=fopen('m.txt','r'); input_text=textscan(x,'%s','bufsize',10^999); A=input_text{1}; y=[A{:}] error: Error using ==> textscan Buffer size must be integer-valued.

Error in ==> mat_hex_dec at 5 input_text=textscan(x,'%s','bufsize',10^999);

[per isakson]

Do you know how many disks you need to store a file of the size, 10^999 bytes? 10^999 is not exactly "multiply by ten".

How large is the file on disk? You do not need a buffer larger than the file!

Did you try

    str = fileread( file_spec );
    ix  = strfind( str, char(10) );
    mx  = max( ix );

add

    sz  = size( str )