CODEWITHSUNDEEP
matlab
user1956609
user1956609

Reputation: 2202

Bar chart with sample values marked in x-axis? (MATLAB)

I'm creating a density histogram using bar(). The Y-vector holds my sample data, and I create the bar graph using the following code:

            [nelements, centers] = hist(Y,(-9.5:1:7.5));
            bar(centers,nelements/numSamples,'hist')
            axis([-10 8 0 .33])

How would I go about placing a green 'X' along the x-axis of the bar chart if that value exists in Y? (Even better would be if a dot-plot could be created along the x-axis instead, so duplicate values aren't blocking each other).

Upvotes: 0

Views: 284

Answers (1)

A. Donda
A. Donda

Reputation: 8476

If by "that value exists in Y" you mean that the respective histogram count for that bin is larger than zero, then this should work:

ind = find(nelements > 0);
hold all
plot(centers(ind), 0, 'xg')

If by "dot-plot" you mean a one-dimensional scatter plot, this does it:

hold all
plot(Y, 0, 'xg')

In both cases the green 'X's are located on the x-axis, but it might look better if you put them slightly below. In the latter case e.g.:

yl = ylim;
yl(1) = -0.1 * diff(yl);
hold all
plot(Y, -0.05 * diff(yl), 'xg')
ylim(yl)

Upvotes: 1

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