Gnuplot is a freely distributed graphing utility used within SimPhase interface for plotting.
Gnuplot is not included in SimPhase installation. It must be installed separately (installation takes a minute).
See gnuplot free licensing conditions and download links at http://www.gnuplot.info
IMPORTANT: During installation, make sure that you scroll down and select “Add application directory to your PATH environment variable” (see following image).
After gnuplot install, you need to re-start your computer.