DESC: KaleidaGraph transforms your complex data into meaningful graphs! ??Impressive speed - data can be entered or imported from an Excel or text file. Use algebraic and statistical functions to manipulate over 8 million data points. Precise control of plot elements for 16 2D plot types. Independent upper and lower error bars. The program includes 9 built-in fits (Linear Regression and Smoothing Fits) and allows you to enter your own fit equation.