Screenshot of PAST 4.03, a data analyzing app for the Windows operating system.
Free Freeware
Oyvind Hammer
Windows 10 8 7
PC Type:
64-bit · x64
Jun 3, 2020
4.03 (download)


Fernando Ortega

Complex application for analyzing scientific data in the form of statistics which draws graphs and plots with an interface similar to other spreadsheet software.

PAST is a freeware data analyzer software download filed under calculators and made available by Oyvind Hammer for Windows.

The review for PAST has not been completed yet, but it was tested by an editor here on a PC and a list of features has been compiled; see below.

Spreadsheet-style software for scientific analysis of data and numbers

Past is free software for scientific data analysis, with functions for data manipulation, plotting, univariate and multivariate statistics, ecological analysis, time series and spatial analysis, morphometrics and stratigraphy.

Features and highlights

  • A spreadsheet-type data entry form
  • Both interactive user interface and scripting
  • Graph, scatter, 3D scatter, bubble, histogram, kernel density estimation, box, percentile, ternary, survivorship, spindle, matrix, surface and normal probability plots
  • Curve fitting: Linear (ordinary least squares, Reduced Major Axis, Major Axis, robust) with bootstrapping and permutation, Durbin-Watson and Breusch-Pagan tests, Generalized Linear Model including logit regression, lin-log (exponential), log-log (allometric), polynomial, logistic, von Bertalanffy, Michaelis-Menten, sum-of-sines, smoothing splines, LOESS smoothing, Gaussian (species packing), multiple multivariate regression, logarithmic spirals

PAST 4.03 on 32-bit and 64-bit PCs

This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from calculators without restrictions. PAST 4.03 is available to all software users as a free download for Windows.