How to make the textscan command skip the line with texts

Thread Starter

talhak

Joined May 30, 2011
4
hi,
anybody know how the textscan can be used to skip the text line in file and carry on reading the data in a sequence. I have to read a file with numeric data but the text appears randomly in the file. i have to skip and read the next line.

But one thing i have observed that once the textscan reads the text file i keeps on returning empty array.

here the code:

fname = input('Enter Data File Name:','s');
fid=fopen(fname,'r');
r=zeros(300,8);

for j=1:300

C = textscan(fid, '%d', 8);
m = cell2mat(C);

r1=m';
r(j,:)=r1;
j=j+1;
if j==300
break;
end;

end
plot(r(2:300,1));

So, the code reads the data up to 300 samples, but the text appears 2 or 3 times for two rows. Once the textscan reads the text it gives error and returns empty array. The data is like that:
-12 -42 40 -75 -70 -110 -153 -140
-4 -55 -18 -144 -130 -183 -234 -207
17 -22 -41 -161 -131 -190 -221 -179
-62 -92 16 -89 -71 -96 -129 -109
-38 -64 89 -17 -31 -35 -95 -73
-80 -71 43 -68 -65 -94 -147 -134
-45 -59 -11 -124 -122 -189 -216 -180
-62 -69 -42 -157 -128 -195 -228 -186
-65 -81 53 -42 -32 -45 -88 -49
-79 -84 117 19 19 -3 -53 -35
-39 -52 44 -54 -46 -76 -121 -105
-22 -32 1 -119 -118 -166 -194 -161
HEART_RATE 54
LEAD_OFF_STATUS 1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0
-4 -12 -38 -148 -114 -172 -199 -174
 

MrChips

Joined Oct 2, 2009
30,806
Funny thing, I have the exact same problem.

As far as I know there is no quick fix to this problem.
You will have to read each line in as text and parse each line.

I hope this helps.
 
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