Plot discrete sequence data
stem(
plots the
data sequence, Y
)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)
.
If Y
is a matrix, then stem
plots
all elements in a row against the same x value,
and the x-axis scale ranges from 1 to the number
of rows in Y
.
stem(
plots
the data sequence, X
,Y
)Y
, at values specified by X
.
The X
and Y
inputs must be vectors
or matrices of the same size. Additionally, X
can
be a row or column vector and Y
must be a matrix
with length(X)
rows.
If X
and Y
are
both vectors, then stem
plots entries in Y
against
corresponding entries in X
.
If X
is a vector and Y
is
a matrix, then stem
plots each column of Y
against
the set of values specified by X
, such that all
elements in a row of Y
are plotted against the
same value.
If X
and Y
are
both matrices, then stem
plots columns of Y
against
corresponding columns of X
.
stem(___,
fills
the circles. Use this option with any of the input argument combinations
in the previous syntaxes.'filled'
)
stem(___,
modifies
the stem chart using one or more Name,Value
)Name,Value
pair
arguments.