MATLAB: How to solve Dataset loading problem

datasetmachine learningMATLABtext filetext;textscan

I am trying to load a dataset about daily living activities on matlab.The content of the txt file contains the following information
2011-11-28 02:27:59    2011-11-28 10:18:11    Sleeping    
2011-11-28 10:21:24    2011-11-28 10:23:36    Toileting  
2011-11-28 10:25:44    2011-11-28 10:33:00    Showering  
2011-11-28 10:34:23    2011-11-28 10:43:00    Breakfast  
2011-11-28 10:49:48    2011-11-28 10:51:13    Grooming  
2011-11-28 10:51:41    2011-11-28 13:05:07    Spare_Time/TV    
2011-11-28 13:06:04    2011-11-28 13:06:31    Toileting  
2011-11-28 13:09:31    2011-11-28 13:29:09    Leaving  
2011-11-28 13:38:40    2011-11-28 14:21:40    Spare_Time/TV    
2011-11-28 14:22:38    2011-11-28 14:27:07    Toileting  
2011-11-28 14:27:11    2011-11-28 15:04:00    Lunch    
2011-11-28 15:04:59    2011-11-28 15:06:29    Grooming  
2011-11-28 15:07:01    2011-11-28 20:20:00    Spare_Time/TV    
2011-11-28 20:20:55    2011-11-28 20:20:59    Snack  
2011-11-28 20:21:15    2011-11-29 02:06:00    Spare_Time/TV    
2011-11-29 02:16:00    2011-11-29 11:31:00    Sleeping    
2011-11-29 11:31:55    2011-11-29 11:36:55    Toileting  
2011-11-29 11:37:38    2011-11-29 11:48:54    Grooming  
2011-11-29 11:49:57    2011-11-29 11:51:13    Showering  
2011-11-29 12:08:28    2011-11-29 12:18:00    Breakfast  
2011-11-29 12:19:01    2011-11-29 12:22:00    Grooming  
2011-11-29 12:22:38    2011-11-29 12:24:59    Spare_Time/TV    
2011-11-29 13:25:29    2011-11-29 13:25:32    Snack  
2011-11-29 13:25:38    2011-11-29 15:12:26    Spare_Time/TV    
2011-11-29 15:13:28    2011-11-29 15:13:57    Toileting  
2011-11-29 15:14:33    2011-11-29 15:45:54    Lunch
I want to read the txt file with the "textscan" method, but my code is not working. I get this error message whenever i try to compile the script.
"Conversion to double from cell is not possible.
Error in Untitled (line 10)
        x(i,pat)=(Data(i,pat));"
This is my code
fh=fopen('OrdonezA_ADLs.txt');
Data=textscan(fh, '%s,datenum(%s),%s,datenum(%s),%s');
fclose(fh);
n=length(Data);
P=length(Data{1});
x=zeros(n,P);
for pat=1:P
    for i=1:n
        x(i,pat)=(Data(i,pat));
    end
end

Best Answer

Try this:
Data=textscan(fh, '%s%s%s%s%s');
You may need other name-value pair arguments such as 'Delimiter', 'MultipleDelimsAsOne', CollectOutput, and others.
Also, it is best to use the size function here:
n=size(Data,1);
Related Question