Removing values from plot and applying curve

I want to remove the values situated on y=0 and x=0. How can I do this?

Is there a way to translate this into a curve somehow?

D:34213580x1 double
I3:34213580x1 double


figure
plot(I3,D,'.')

Answer 1

[Benjamin Großmann]

You can remove values from an array by setting them to empty. Use logical indexing to address the values that you want to delete.

D_IdxToDelete = D == 0;    % or "D_IdxToDelete = D <= DLIM;" if you do not have exact zeros and want to specify margins
I3_IdxToDelete = I3 == 0;  % or "I3_IdxToDelete = I3 <= I3LIM;" if you do not have exact zeros and want to specify margins

% Use "&" (and) or | (or) to combine different logical index arrays
% Idx to delete when D OR I3 is zero. 
IdxToDelete = D_IdxToDelete | I3_IdxToDelete;

% delete the entries
D(IdxToDelete) = [];
I3(IdxToDelete) = [];