MATLAB: How to load a .dat (comma-separated)

.dat

How can I read a file in .dat format, which has three commas in each row and only the second is a separator? The others are decimal separators.

Maybe I do not explain my problem sufficiently, so I attach the mentioned file.

v=importdata('1.dat')
w=v(1:2:end)
out=regexprep(w,'(?<=\S+,\S+),', ' ')

Try importdata but it's not absolutely guaranteed. With the regular numeric format it should be able to figure it out.

But, if it can't successfully read the first column as a text header then textscan or fscanf are your friends....

>> Z = cellfun(@(c)cellfun(@(v)v(:),c,'uni',0),x,'uni',0)
Z = 
    {1x1 cell}
>> Z{1}{1}
ans =
     2
     1
     2
     3

Although your code would be a lot simpler if you did not use nested cell arrays in the first place.