'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.
stem(.,'fill') specifies whether to color the circle at the end of the stem. 2 ) Example 2.15 : Plot line options Stem Plot A similar function to plot is the. Additionally, X can be a row or a column vector and Y a matrix with length(X) rows. Table 2.2 : Plot line colors and styles in MATLAB Specifier Color. X and Y are vectors or matrices of the same size. Using Basic Colors in Graphs Changing Colors Using RGB triplets to change colors Changing colors in 3D Graphs m-file that created this page BACK TO MAIN PLOTTING PAGE This document gives BASIC ways to color graphs in MATLAB. 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. The stem function provides three arguments to style the plot: linefmt for the lines, markerfmt for the markers and basefmt for the base line. A two-dimensional stem plot displays data as lines extending from the x-axis.
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