Circular Data Analysis Available in NCSS

NCSS
Circular Data Analysis

This procedure computes summary statistics, generates rose plots and circular histograms, computes hypothesis tests appropriate for one, two, and several groups, and computes the circular correlation coefficient for circular data. Angular data, recorded in degrees or radians, is generated in a wide variety of scientific research areas. Examples of angular (and cyclical) data include daily wind directions, ocean current directions, departure directions of animals, direction of bone-fracture plane, and orientation of bees in a beehive after stimuli.

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NCSS 2007 Upgrade Available

from NCSS 2004:
$249.95
from Earlier Versions:
$349.95

NCSS 2007 is now available. This version adds several new procedures and features to NCSS, including mixed models, macros, and an enhanced user interface. Here is a summary of the new procedures, tools, and features:

Procedures
Mixed Models
Circular Data Analysis
Data Matching - Optimal and
Greedy
Data Simulator
Data Stratification
Double Dendrograms
Merging Two Databases
Multiple Regression with Serial
Correlation Correction
Nondetects Analysis
Nondetects Regression

Tools
Macros (Programmability)
Color Selection Windows
Quick Launch Window

Features
Enhanced User Interface
Improved Help System

Read about what’s new in NCSS 2007.

View the upgrade brochure.
View the NCSS 2007 brochure.

Download an NCSS Update
Current Version:
NCSS 2007
Released April 18, 2008

What's changed in this release?

Sample NCSS Reports
Click here for the complete list.

Analysis of Variance
Appraisal Methods
Binary Diagnostic Tests
Charts and Graphs
Cross Tabulation
Curve Fitting
Descriptive Statistics
Design of Experiments
Forecasting
General Linear Models
Meta-Analysis
Multivariate I
Multivariate II
Proportions
Quality Control
Regression Analysis
Reliability Analysis
Repeated Measures
ROC Curves
Survival Analysis
Time Series Analysis
T-Tests

Download a 7-day trial copy of NCSS 2007

Place an order using our secure online order form

System Requirements
Runs under Windows Vista, XP, 2000, NT, ME, 98, 95 compatible Pentium-class computers 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)--no questions asked.