CODEWITHSUNDEEP
matlabfile-ioscanf
user1067334
user1067334

Reputation: 243

How to read data from file following a certain syntax in MATLAB

How do I read the following data into MATLAB matrixes. This following data is stored in a file.

5.1,3.5,1.4,0.2,Point1
4.9,3.0,1.4,0.2,Point2
4.7,3.2,1.3,0.2,Point3
4.6,3.1,1.5,0.2,Point4
5.0,3.6,1.4,0.2,Point5
5.4,3.9,1.7,0.4,Point6
4.6,3.4,1.4,0.3,Point7
5.0,3.4,1.5,0.2,Point8
4.4,2.9,1.4,0.2,Point9
4.9,3.1,1.5,0.1,Point10
5.4,3.7,1.5,0.2,Point11
4.8,3.4,1.6,0.2,Point12

Its four float numbers seperated by commas and followed by a string.

I tried to use the following code but it doesn't seem to work properly.

fid = fopen("file.txt", 'r');

I want to get the four float values in each line into a numberoflines * 4 matrix and the string in each line into a string array.

fid = fopen('iris.data');

tline = fgetl(fid);
while ischar(tline)
    disp(tline)
    tline = fgetl(fid);
    scanf(tline,'%f,%f,%f,%f,%15c');
end

fclose(fid);

I am new to Matlab and I am doing something very wrong here, so please bear with me.

Thanks, Sagar.

Upvotes: 0

Views: 634

Answers (1)

Maecky
Maecky

Reputation: 2038

try this line:

vec = sscanf( tline( 1:end ), '%f,%f,%f,%f,%*s' )

should work, regards

Upvotes: 2

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