Stem MATLAB

1. What is stem in Matlab?
2. What is the difference between stem and plot in Matlab?
3. Why stem command is used?
4. What is stem in octave?

What is stem in Matlab?

stem( Y ) plots the data sequence, Y , as stems that extend from a baseline along the x-axis. The data values are indicated by circles terminating each stem. If Y is a vector, then the x-axis scale ranges from 1 to length(Y) .

What is the difference between stem and plot in Matlab?

The main point of difference between the two is that plot displays the continuous values for the curve. Think about drawing a graph of y= sin(x) using a pencil without removing its contact from paper. On the other hand, stem displays the discrete values of the points on the curve.

Why stem command is used?

stem(Y) plots the data sequence Y as stems that extend from equally spaced and automatically generated values along the x-axis. When Y is a matrix, stem plots all elements in a row against the same x value. stem(X,Y) plots X versus the columns of Y . X and Y are vectors or matrices of the same size.

What is stem in octave?

If y is a matrix, then each column of the matrix is plotted as a separate stem graph. In this case x can either be a vector, the same length as the number of rows in y , or it can be a matrix of the same size as y . The default color is "b" (blue), the default line style is "-" , and the default marker is "o" .