MATLAB: How to find X value of given Y close to zero

closest to 0matrix

Hello!
My question is How to find the value of Y more close to zero first (note Y consists of both positive and negative numbers) and then find the corresponding X value from a matrix ? Many thanks in advance.
For example: 6×6 matrix
	   338.00 	 339.00    340.00 	341.00 	 342.00   343.00 
       
1.00    -100.00  -100.00  -100.00  -100.00  -100.00  -100.00 
2.00     100.00   100.00   100.00 	100.00 	 100.00   100.00 
3.00 	  0.28 	  0.12 	  -0.05    -0.21 	-0.38 	 -0.55 
4.00 	  0.28 	  0.12 	  -0.05    -0.21 	-0.38 	 -0.55 
5.00 	  8.21    8.24 	   8.26 	8.28 	 8.30 	  8.32 
6.00 	  8.21    8.24 	   8.26 	8.28 	 8.30 	  8.32
To find the value closest to 0, which is -0.05 corresonding to the value 340. 340 is the output value.

Best Answer

[~,ix]=min(abs(m),[],'all','linear');
[~,j]=ind2sub(size(m),ix);
>> o(j)
ans =
   340
>>
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