Avoid rounding off the decimal values,while loading the data from textfile

Hi,

I am trying to load a certain text file,which contains 2 columns of data. I have written this:

R = load('data.txt');

Upon loading the data, I observed that, data in the columns has been rounded off to first 4 digits only. How can we get the complete data (for example, if the data has decimals upto 6 digits).

[dpb]

FAQ MATLAB_only_calculate_to_4_significant_digits

Answer 1

[Guillaume]

I observed that, data in the columns has been rounded off to first 4 digits only

How did you observed that?

Note that the way matlab displays a number (which can be easily adjusted with format) and the way matlab stores the values in memory are two very different things:

>>format shortg
>>a = 1.23456789
a =
       1.2346

a appears to only store 4 decimals, however

>>a-1.2346
ans = 
    6.789e-5

clearly it still had all the decimals

>>format longg
>>a
a =
     1.23456789

Yep, still there.