# Complot opțional.  Spaghetti plot Stemplot  : A stemplot or stem-and-leaf plotin statistics, is a device for presenting quantitative data in a graphical format, similar to a histogramto assist in visualizing the shape of a distribution.

They evolved from Arthur Bowley 's work in the early s, and are useful tools in exploratory data analysis. Unlike histograms, stemplots retain the complot opțional data to at least ce an este bitcoin significant digits, and put the data in order, thereby easing the move to order-based inference and non-parametric statistics. Star plot  : A graphical method of displaying multivariate data. Each star represents a single observation. Typically, star plots are generated in a multi-plot format with many stars on each page and each star representing one observation.

Usually, the set of X and Y values are equally spaced. Optionally, the plotted values can be color-coded. Surface plot Ternary plot A ternary plot, ternary graph, triangle plot, simplex plot, or de Finetti diagram is a barycentric plot on three variables which sum to a constant. It graphically depicts the ratios of the three variables as positions in an equilateral triangle. It is used in petrologymineralogymetallurgyand other physical sciences to show the compositions of systems composed of three species.

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In population geneticsit is often called a de Finetti diagram. In game theoryit is often called a simplex plot. Vector field  : Vector field plots or quiver plots show complot opțional direction and the strength of a vector associated with a 2D or 3D points.

They are typically used to show the strength of the gradient over the plane or a surface area. Violin plot  : Violin plots are a method of plotting numeric data. They are similar to box plotsexcept that they also show the probability density of the data at different values in the simplest case this could be a histogram.

Typically violin plots will include a marker for the median of the data and a box indicating the interquartile range, as in standard box plots.

Overlaid on this box plot is a kernel density estimation. Violin plots are available as extensions to a number of software packages, including R through the vioplot library, and Stata through the vioplot add-in. 