Free data analysis software for mac

ROC Analysis 1.5 is a very flexible and effective tool which graphs the Receiver Operating Characteristic (ROC) curve and calculates the Area Under the ROC Curve (AUC) using a nonparametric method.

ASCA Profile Analysis is a Macintosh EXCEL spreadsheet template created to perform the syndromic profile analysis of Adjustment Scale for Children and Adolescents scores.

Mac ChiSquare Analysis calculates chi-square statistic as well as phi, contingency, and kappa coefficients from up to a 10 x 10 table.

The chi-square test is used to compare the distributions of two independent samples. It is used with data in the form of frequencies. It is a nonparametric procedure that makes no assumptions about distribution shapes, variances, or levels of measurement (Diekhoff, 1996).

The chi-square test evaluates the correspondence between the expected and the observed number of cases in each of the cells of the variable by variable contingency table (Thompson, 1988). It is a test of whether or not a null hypothesis of no association should be rejected between the two independent variables.

If the chi-square test shows that there is a relationship between the two variables, then the contingency coefficient gives an indication of the degree of the relationship. (Bruning & Kintz, 1997). The contingency coefficient is similar in meaning to the correlation coefficient.

Cramers phi coefficient is a measure of association that is also similar to a correlation coefficient. It can assume a value between 0 and +1. See Sheskin (2000) for further detail.

Kappa is calculated when the rows and columns are symmetrical. Kappa is often used to examine inter-observer agreement and reflects the amount of agreement beyond chance (Norman & Streiner, 2000).

Enhancements: Moved from Cocoa to Qt allowing several operating system at the same time.

Requirements: Mac OS X 10.4.10 or later.

Graphical Analysis is an inexpensive, easy-to-learn program for producing, analyzing, and printing graphs. It is also great for importing data from a TI graphing calculator (using a TI-GRAPH LINK cable) or from a Palm OS handheld. It has been one of our most popular products for years and now its even better! We have rewritten Graphical Analysis, adding new features and updating its look and capabilities. Graphical Analysis has many of the same features that Logger Pro has, except it cannot collect live data.
Enhancements:
- Adds support for the USB direct cables included with TI-84 family calculators, double-Y graphs, and photo analysis.

Ability-Achievement Discrepancy Analysis is a standalone Macintosh application that performs a simple regression-based prediction of achievement for determination of a severe ability-achievement discrepancy.

s@Data stands for Subscribers Database: this program is a light database where you can store info about subscribers/customers of your products (magazines, software etc.).

For new subscribers and new clients, it sends them an aknowledgment-email; when subscription-date is about to end, it sends a reminder; and when subscription expires, it sends a warning.