How to save a text file as a .mat file?

Hi,

I have a text file having data with each row having the format: a1,a2,a3,a4. I have close 2k such rows. I need to save the full text file as a .mat file. How do I get that? I already tried tetxscan but I run into cell within cell issue. Appreciate help.

Answer 1

[Stephen23]

M = csvread('oldfile.txt');
save('newfile.mat','M')

Answer 2

[KSSV]

data = importdata('myfile) ;
save data.mat -v7.3

Using textscan

fid = fopen(myfile) ;
S = textscan(fid,'%f %f %f %f') ;
fclose(fid) ;
a1 = S{1} ; a2 = S{2} ; a3 = S{3} ; a4 = S{4} ;
save data.mat -v7.3 ;

[CuriousThinker]

Thank you very much for the answer. But, this will only get values of a single row. How to save the entire text file to mat?

[KSSV]

The above saves entire data of text file into mat file.

[CuriousThinker]

Hi, This the data the data on the file:

0,25.6,100.3,45.7,32.5
10,35.6,200.3,55.7,42.5
20,45.6,300.3,55.7,52.5
30,55.6,400.3,65.7,62.5
40,65.6,500.3,75.7,72.5
50,75.6,600.3,85.7,82.5
60,85.6,700.3,95.7,92.5
70,25.6,100.3,45.7,32.5
80,25.6,100.3,95.7,82.5
90,85.6,100.3,45.7,32.5
100,25.6,200.3,35.7,32.5

When I run the above code, and try

 load('data.mat')

I'm getting only the first row.

[KSSV]

data = importdata('data.txt') ;  % you can use load also
save data.mat -v7.3

It is giving you the full data in text file.

Answer 3

[madhan ravi]

Matrix=load('sample.txt')         %assuming text file is numeric

save sample.mat Matrix

Answer 4

[CuriousThinker]

Hi,

Thank you for the suggestions. I was able to solve it using csvread()

data = importdata('myfile') ;
save('data_mat.mat','data');

[Stephen23]

"I was able to solve it using csvread()"

Don't forget to accept the answer that showed you how to use csvread.

[waleed]

data = importdata('myfile') ;
save('data_mat.mat','data');

to use this command: my file name is wifi_motion.txt

wifi_motion = importdata('wifi_motion.txt ') ;
save('wifi_motion_mat.mat','wifi_motion');

[Walter Roberson]

Be careful, your filename probably does not end in a space.

wifi_motion = importdata('wifi_motion.txt') ;