Spaghetti models allow users to visualize the flows through a system, and in this respect are similar to Sankey diagrams. These flows can look like spaghetti – hence the name, and were first used to visualize material flows through factories. They have various uses in meteorology (particularly hurricane path recording and forecasting), and in medicine.
Below is a list of tools which support the creation of spaghetti models:
For users of R ggplot2 and ggvis both allow creation of spaghetti models.
GraphPad is heavily used by pharmaceutical companies and various research institutes.
SAS supports spaghetti plots with its SGPLOT procedure.
Stata supports spaghetti plots through a program called spagplot by ATS.