![]() Let's assume that we want to plot the following elegant exponential and sinusoidal function: let's draw a simple discrete function % Avoid superimposed operations and close previous figs. 'stem' does not join the circles with a line, and it is very helpful to stress the fact that the function is not continuous but discrete. It draws vertical lines (with a little circle at the tip) proportional to the value of the function at that particular horizontal value. In this example, we study the 'stem' instruction to plot Matlab functions. H = stem(.) returns handles to line graphics objects Examples Create a stem plot of 10 random numbers. Stem(.,LineSpec) specifies the line style, marker symbol, and color for the stem plot. Can I change the color/marking of only the values that are zero in that vector Right now, the points of. Discrete Data Plots for related functions. Create a stem plot of a circular function. stem(.,'fill') specifies whether to color the circle at the end of the stem. Im doing a stem plot of one vector in MATLAB. h(2) - the stem line h(3) - the base line Examples. Additionally, X can be a row or a column vector and Y a matrix with length(X) rows. X and Y are vectors or matrices of the same size. stem(X,Y) plots X versus the columns of Y. When Y is a matrix, stem plots all elements in a row against the same x value. stem(Y) plots the data sequence Y as stems that extend from equally spaced and automatically generated values along the x-axis. A circle (the default) or other marker whose y-position represents the data value terminates each stem. A two-dimensional stem plot displays data as lines extending from the x-axis.
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