I had a large textfile with about 1001 rows and 5 columns of strings in 1st row and numericals in remaining rows. I would like to read this data from file and would like to use it as input for my programming part.
if your textfile has delimited characters (i.e. in csv form) like comma, semi-colon, etc you can import all the dataset by the function :
A=importdata('Path/to/file, ','); // note that here comma was the delimiter.
then matrix A is loaded to matlab workspace and you can do several interesting things with that using matlab built-in array and matrix features
if your textfile has delimited characters (i.e. in csv form) like comma, semi-colon, etc you can import all the dataset by the function :
A=importdata('Path/to/file, ','); // note that here comma was the delimiter.
then matrix A is loaded to matlab workspace and you can do several interesting things with that using matlab built-in array and matrix features
I used this code
filename= 'size_5.txt';
delimiterIn = ' ';
headerlinesIn = 1;
A= importdata(filename, delimiterIn,'\t', headerlinesIn);
for k = [2, 4]
disp(A.colheaders{1,k})
disp(A.data(:, k))
disp(' ')
end
but it gives an error Unable to load file.
Use TEXTSCAN or FREAD for more complex formats.
I had attached my text file..
Could you please help me..
Thank you...
Yes, either you can use '\t' as tab delimiter or simply ' ' to mention space A=importdata('size_5.txt',' ');
then you can call you A as a normal matlab cell. i.e.: A(1,2) , etc
Thank you Markus and Amir. This function has worked.
But the data is imported in single column, but as my file contains 5 columns. Because i want to subtract each column with 1. As the imported data is in single array, i couldnt mention range of the column to get subtracted.
Could you guys help me for this..
Thank you..
then use readtable( function in matlab ) and specify the first line as headerline :
B=readtable('size_5.txt','HeaderLines',1,'Delimiter','\t')
in anycase check this link to understand the behaviors of the function :
http://www.mathworks.it/it/help/matlab/import_export/import-mixed-text-and-numeric-data-from-a-text-file.html
Thank you so much Amir and Markus for ur kind and valuable suggestions...
Markus i used importdata function, but i change my file to .xls and it worked brilliantly.
Thank you so much....
hello
i want to import matlab file and then divide the reuter dataset into equally separated classes into positive and negtive classes and access features. can anyone how to write code
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