CODEWITHSUNDEEP
matlabplotmarkers
user1574598
user1574598

Reputation: 3881

Displaying Marker Values Within a MatLab Plot

I'm trying to display my values for a given vector within a plot. My code is:

x = [0.1 0.2 -0.1 4.1 -2 1.5 -0.1];
plot(x)
a = num2str(x(:));
b = cellstr(a);
c = strtrim(b);
text(x,y,c);

Its plotting the values, but they are scattered all over the place, and not sitting nicely next to each point on the graph.

Upvotes: 0

Views: 6035

Answers (1)

sco1
sco1

Reputation: 12214

As I said in my comment above, calling plot with a single vector input treats the values of the vector as the y-coordinates and their indices as the x-coordinates. Your provided x vector contains negative numbers, but your plot call only has one vector input, so there will be no negative x-coordinates in the plot (there are no negative indices in MATLAB).

Assuming your x vector is your desired y-coordinate, the following example will provide the behavior I'm guessing you're expecting:

y = [0.1 0.2 -0.1 4.1 -2 1.5 -0.1];
x = 1:1:length(y);
plot(x,y)
a = num2str(x(:));
b = cellstr(a);
c = strtrim(b);
h = text(x,y,c);

Where h is an array of object handles that you can use with get and set to query and modify the properties of each individual text object (like size, alignment, etc.).

Upvotes: 2

Related Questions