stem

Purpose

Stem plot for discrete sequence data.

stem(y)
stem(x,y)
stem(y,'linetype')
stem(x,y,'linetype')

stem(y) plots the data sequence y as stems from the x-axis. Each stem is terminated with a circle whose y-position represents the data value.

stem(x,y) plots the data sequence y at the values specified in x.

stem(y,'linetype') and stem(x,y,'linetype') specify a line type for the stems of the plot. See plot for valid linetypes.

y = randn(50,1);
stem(y)