Label Every Other Point In a Plot

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Aarav Shah
Aarav Shah 2022-3-5
回答： Walter Roberson 2022-3-5
Say I were to do a plot as such
scatter(x,y)
How would I label every other point. For example, if there were 7 points. How should I go about labeling 1,3,5,7? Would I use a for loop? Or check if each point is odd?
Thanks all.

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回答（1 个）

Walter Roberson
Walter Roberson 2022-3-5
Ran in:
See https://www.mathworks.com/help/matlab/creating_plots/create-line-plot-with-markers.html#bvcbmlx-1 -- plot() with 'MarkerIndices'
Provided, that is, by "label" you mean "put a marker"
If you mean put a text point, then
%data for demonstration
x = rand(1,7);
y = rand(1,7);
%the work
scatter(x,y)
hold on
text(x(1:2:end), y(1:2:end), string(1:2:length(x)).')

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