NCSS 2024 Update

Update Release Notes

This page lists the changes that have been made to NCSS 2024 since it was released.

Version: 24.0.7

Released: July 11, 2025

1. Corrected an error in the following four One Proportion procedures: One Proportion, One Proportion – Non-Inferiority Tests, One Proportion – Superiority by a Margin Tests, One Proportion – Equivalence Tests. The error had occurred when "Type of Data Input" was set to "Tabulate "Successes" from a Categorical Outcome Variable in the Database", with multiple outcome variables, and with the case of one or more of the outcome variables having no successes. Prior to the fix, the results for a column with no successes would mirror those of the previous column, rather than having an X of 0. This was corrected so that all columns with no successes would have the appropriate X of 0.

2. Corrected an error in application-wide percentile calculations when using the "EDF w/ Ave" formula option. In some instances (i.e., when NP is an integer) the result was slightly off.

3. Corrected an error in the Polynomial Model Fit - Y vs One X procedure. The Function Plot was not being displayed in the output even when the corresponding option was checked.

4. Corrected a display issue with the Procedure Window. In some cases when the Procedure Window was scrolled, changing an option in a dropdown box would cause the window inputs to misalign and appear crammed at the top of the window. This has been corrected.

Version: 24.0.6

Released: March 11, 2025

1. Corrected an error in the display of the Find and Replace form when Application Scale is greater than 100%. The find and replace entry boxes were not displayed correctly, running off the edge of the window.

2. Corrected an error that caused Message Boxes to appear behind other windows in some cases, so that they could not be seen.

Version: 24.0.5

Released: January 28, 2025

1. Corrected an error in the Tolerance Intervals procedure. The Nonparametric Upper One-Sided Tolerance Bound was being calculated incorrectly. NCSS was reporting a value one spot less than the actual data value as the tolerance interval (e.g., if the 299th data value was the actual nonparametric tolerance bound, NCSS would report the 298th data value instead). NCSS was also reporting an upper tolerance bound in some cases when there was not sufficient data to compute it. Both errors have been corrected.

Version: 24.0.4

Released: January 20, 2025

1. Corrected an error in the Correlation Matrix procedure. The Pearson correlation p-value was being reported in place of the Spearman correlation p-value.

Version: 24.0.3

Released: August 1, 2024

1. Corrected an issue with the Procedure Window Help Center display. The Height of the Help Center would increase slightly each time a procedure was opened for some Application Zoom settings.

2. Corrected an error in the Reference Intervals procedure. In some cases, computing the confidence limits for reference intervals using the percentile method would result in a “subscript out of range” error.

Version: 24.0.2

Released: February 28, 2024

1. Corrected an error in the Column Selection Tool that would cause very long column names to disappear for some screen resolution and application scale (zoom) settings.

2. Corrected an error that occurred during license key activation in some cases.

Version: 24.0.1

Released: January 23, 2024

1. Initial Release of NCSS 2024