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help with ordering tables

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Jules Ray
Jules Ray 2011-11-29
dear colleages... i have a problem with a table... here is the problem....
i got a table named depth:
depth(:,1)=a1;
depth(:,2)=g1;
i need to create two new tables (submarine and aerea) each one composed by selected values of the table depth and also composed by two columns each one:
for submarine: i need all negative values of the second column of depth (depth(:,2), with each corresponding value of the first colum of depth (depth(:,1).
for aerea: the same but positve values...
i prepare this but dosent work
submarine=find((depth(:,2)<0,:));
aerea=find((depth(:,2)>0,:));
i think, find is not correct to be used in this case.... but what can i use?
thanx

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Walter Roberson
Walter Roberson 2011-11-29
submarine = depth(depth(:,2)<0, :);
aerea = depth(depth:,2)>0, :);
Question: what if the depth was exactly 0 ?

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