统计分析软件NCSS 2021的新增功能？
NCSS 2021已发布，这是统计分析和图形软件的新版本。对于NCSS 2021中新的组顺序分析程序，PASS 2021中有相应的组顺序功能和样本大小程序。
NCSS 2021中的新程序
Violin Plots
Violin Plots
Violin Plots（2 Factors）
Violin Plot Example
Group-Sequential Tests（Efficacy/Futility Boundary Options, Sample Size Re-estimation）
For each of this group-sequential analysis and sample-size re-estimation procedures, these are corresponding group-sequential power and sample size procedures in PASS 2021.
Group-Sequential Non-Inferiority Analysis for One Mean with Known Variance
Group-Sequential Superiority by a Margin Analysis for One Mean with Known Variance
Group-Sequential Non-Inferiority T-Tests for One Mean
Group-Sequential Superiority by a Margin T-Tests for One Mean
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Group-Sequential Analysis for One Proportion
Group-Sequential Non-Inferiority Analysis for One Proportion
Group-Sequential Superiority by a Margin Analysis for One Prportion
Group-Sequential Analysis Input Example
Group-Sequential Analysis Output Example
Sample Size Re-Estimation Output Example
NCSS 2021中新的或改进的程序
These procedures have been updated to improve functionality and flexibility.
Random Seed
For all procedures that utilize random number generation, a Random Seed option was added, to obtain output reproducibility.
Line Charts Added to Several Procedures
For each of these procedures, the option to produce line charts was added.
Frequency Tables
Contingency Tables
Descriptive Statistics-Summary Tables
Descriptive Statistics-Summary Lists
Cochran's Q
Two Proportions
Two Proportions-Non-Inferiority Tests
Two Proportions-Superiority by a Margin Tests
Two Proportions-Two-Sided Tests vs. a Margin
Two Proportions-Equivalence Tests
Two Correlated Proportions（McNemar Test）
Two Correlated Proportions-Superiority by a Margin Tests
Two Correlated Proportions-Equivalence Tests
Two Correlated Proportions-Non-Inferiority Tests
Compare Appraisal
Cluster Randomization-Create Cluster Means Dataset
Cluster Randomization-Create Cluster Proportions Dataset
Cluster Randomization-Create Cluster Rates Dataset
Line Chart Example
Label Sorting and Improved Data Orientation Options
The ability to order the labels was added, as well as an improved data orientation option, for the following procedures.
4 Bar Charts procedure
4 Line Charts procedures
Pie Charts
Overall Regression Line
The ability to add an overall regression line was added to the following procedures.
Scatter Plots
Scatter Plots with Error Bars
Bland-Altman Plots
Overall Regression Line Example
Residual Normality Tests
The following Normality tests of the residuals were added to the One-Way ANOVA procedure.
Shapiro-Wilk
Anderson-Darling
Exact Binomial McNemar Test
The Exact Binomial McNemar Test was added to the Two Correlated Proportions（McNemar Test）procedure.
Machine Zero in Mixed Models Procedures
The Mixed Models procedures were updated to allow the local setting of the machine zero so that the local machine zero can override the global machine zero. This allows local control of the machine zero when attempting to obtain model convergence.
增强功能
Variable Lable and Value Labels
A much-improved system for the use of variable labels and value labels was implemented system-wide.
Report Auto-sizing
A program-wide auto-sizing of report columns was integrated, giving improved column spacing in reports.
Output Example（Before）
Output Example（After）
Group By System
The new Group By system allows any analysis to be run independently for each value of the designated Group By column(s).
Group By System Setup Example
Group By System Result Example
With the Group By system active, a separate run is made for each level of Iris.
Data Fill Tool
The Data Fill tool was updated to save the current settings when the windows is closed.
Windows Access Improvements
Improved access to various controls is given for the following scenarios
Filter and Group By controls were added to the Procedures Window
Report Options Dropdown was added to the Procedure Windows toolbar
Filter Dropdown was added to the Procedure Window toolbar
Group By Dropdown was added to the Procedure Window toolbar
Transformation Dropdown was added to the Data Windows toolbar
Output/Gallery Window menu and toolbar were updated
Window Loading Time
Some optimization techniques were employed to improve the loading time of various windows.
兼容性
NCSS 2021在32位和64位操作系统上与Windows 10,8.1,8,7和Vista SP2兼容。
