NCSS

Introduction

Several procedures are available for tabulating and summarizing your data. The frequency table procedure provides tabulation of single variables. The cross tabulation procedure provides tabulation of two variables into two-way tables. The descriptive tables procedure computes summary statistics (means, median, standard deviations, etc.) according to up to eight breakdown variables. All of these procedures provide numeric and graphic reports. A specialized appraisal ratio module provides reports for mass appraisal.

Features

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System Requirements
PASS 2008, NCSS 2007, and GESS 2006 run on 32-bit and 64-bit systems with Windows 7, Vista, XP, 2000, NT, ME, 98, or 95. Requires pentium-class computer with at least 32 MB of RAM. Requires 200 MB of hard disk space. Requires Adobe Reader® version 7 or later to use the NCSS, PASS, and GESS Help Systems.

Accuracy
We at NCSS have put a great deal of effort into finding the most accurate algorithms possible. The programs have been tested and verified over and over, both by us and by our customers. Each routine has been verified against textbooks, journal articles, and, where possible, other software. NCSS is one of the most accurate statistical analysis programs available. NCSS calculates with seventeen-digit, double-precision accuracy.

Guarantee
If you are not completely satisfied with an NCSS product during the first 30 days for any reason, return the program for a full, prompt refund (excluding shipping).