產品功能

Data Analysis, Graphics
NCSS software provides a complete and easy-to-use collection of hundreds of statistical and graphics tools to analyze and visualize your data.

You can begin a free trial, watch the video to the right, or view the info-graphics below to learn more about the wide-ranging capabilities of NCSS.

NCSS software for data analysis comes complete with integrated documentation, free training videos, and full phone and email support from a team of PhD statisticians.

Discover the product that thousands of researchers, consultants, professionals, engineers, and scientists are using worldwide.

Analysis Using NCSS
With a few easy steps you can obtain meaningful numeric results and clean, clear graphics.

Use the Data window to import or enter your data. Open an NCSS procedure for your desired analysis. Select the columns and run the analysis to obtain accurate and easy-to-read numeric output and graphics.

Intuitive Data Management
NCSS readily imports all major types of data files; or you can copy-and-paste your data, or enter your data directly. NCSS has excellent filtering and transformation features for managing your data.

• NCSS Data File (*.NCSS)
• Access Database
• (*.ACCDB; *.MDB)
• dBase File (*.DBF)
• Epi Info File (*.REC)
• Excel File (*.XLSX; *.XLS)
• Gauss File (*.DAT)
• JMP File (*.JMP)
• Matlab File (*.MAT)
• Minitab File (*.MTW)
• R File (*.RData)
• SAS File (*.SD2;*.SAS7BDAT…)
• SPLUS File (*.DAT)
• SPSS File (*.SAV; *.POR)
• Stata File (*.DTA)
• Statistica File (*.STA)
• Systat File (*.SYS; *.SYZ)
• Text File (*.TXT;*.PRN;*.CSV)

Choosing A Procedure
Finding the right analysis or graphics procedure is easy using the drop-down menu, the procedure search, or the category tree.

Easy Analysis Set-up
The analysis and graphics tools are easy to use and have built-in help messages for every option.

Select the columns to be analyzed, choose the desired reports and plots, and click Run to obtain your results. Watch this video to learn more.

And if you need additional help, the complete documentation for each procedure is just a click away.

Elegant Plot Design
There are over 80 plots available in NCSS. Some plots are part of a general analysis procedure such as analysis of variance or regression, while other plots are standalone tools.

All NCSS plots are highly customizable. Users are given control of the layout, symbols, titles, legend, axes, grid lines, and more. Plot settings are easily saved for future use or for sharing.

A variety of training videos are available through this website, featuring each aspect of plotting in NCSS. Click here to watch a graphics introduction video.

Ready to Use Output
When an NCSS procedure is run, the analysis results and the desired plots are displayed in the output window. All graphics can be clicked to be shown in a separate window for viewing or saving.

Navigation of the output is easy with the output navigation tree. The output and graphics are ready to be viewed, copied and pasted, or saved. Multiple output runs can be sent to the output gallery for saving or for comparing analyses.

系統需求

Minimum System Requirements for NCSS 2024
In order to run NCSS 2024, your computer must meet the following minimum standards:

Processor:
450 MHz or faster processor
32-bit (x86) or 64-bit (x64) processor

RAM:
256 MB (512 MB recommended)

Operating Systems:
Windows 11 or later
Windows 10
Windows 8.1
Windows 8
Windows 7
Windows Vista with Service Pack 2 or higher

Windows Server 2019 or later
Windows Server 2016
Windows Server 2012 R2
Windows Server 2012
Windows Server 2008 SP2/R2

Privileges:
Administrative rights required during installation only

Third Party Software:
Microsoft .NET 4.6 (Comes pre-installed with Windows 10 or later and Windows Server
2016 or later. Installation required on Windows 8.1 or earlier and Windows Server
2012 R2 or earlier. For systems where .NET 4.6 installation is required, a .NET 4.6
download helper will start automatically when you run the NCSS setup file.)
Microsoft Windows Installer 3.1 or higher
Adobe Reader® 7 or higher (required for the Help System only)

Hard Disk Space:
350 MB for NCSS (plus space for Microsoft .NET 4.6 if not already installed)

Printer:
Any Windows-compatible inkjet or laser printer

Power Analysis and Sample Size

PASS可以執行功率分析及計算樣本大小。您可以在研究之前使用它來計算一個合適的樣本大小，在研究之後確定樣本大小是否足夠大。

PASS使你能夠解答功率、樣本大小、結果大小和alpha級別。PASS可以自動顯示帶有表格和文字概述的圖表和曲線圖，這些都具有便攜的特點，而且其剪切和粘貼功能夠相容於任何文字處理軟體。因此，你可以很容易地將結果整併到您的建議報告中。

而雖然PASS與NCSS整合，它仍然是一個獨立的系統，您可以不需要NCSS就可以運行PASS，且其可以與任何統計軟體一起使用。

Sample Size & Power
PASS software provides sample size tools for over 1100 statistical test and confidence interval scenarios - more than double the capability of any other sample size software. Each tool has been carefully validated with published articles and/or texts.

PASS comes complete with integrated documentation and PhD statistician support.

PASS has been fine-tuned for over 25 years, and is now the leading sample size software choice for clinical trial, pharmaceutical, and other medical research. It has also become a mainstay in all other fields where sample size calculation or evaluation is needed.

Obtaining A Sample Size In PASS
In PASS, you can estimate the sample size for a statistical test or confidence interval in a few short steps. If you need guidance during any of the steps, PASS has excellent documentation, there are free training videos, and you can contact our team of PhD statisticians.

Choosing A Procedure
Finding the sample size procedure is easy using the drop-down menu, the procedure search, or the category tree. Watch a short video to learn how to select your desired procedure in PASS.

Enter The Values
The sample size procedure tools are easy to use and have built-in help messages for every option.

Enlarge the infographic to see the descriptions of the ways that PASS helps you to enter the proper values in a sample size procedure tool. You can also watch this video to see an example of using a procedure window in PASS.

Ready to Use Output
When a PASS procedure is run, the sample size results and corresponding plots are displayed in the output window. The sample size or power curves can be clicked to be shown in a separate window for viewing or saving.

Navigation of the output is easy with the output navigation tree. The format of the output makes it easy to be viewed, copied and pasted, or saved. Multiple output runs can be sent to the output gallery for saving or for comparing sample size analyses.

List of Sample Size Procedures – Over 1100 Scenarios

• Assurance
• Bland-Altman Method
• Bridging Studies
• Cluster-Randomized Designs
• Conditional Power
• Confidence Intervals
• Correlation
• Cross-Over Designs
• Equivalence
• Exponential Distribution Parameter Confidence Intervals
• Group-Sequential Tests
• Means - One
• Means - Two Independent
• Means - Two Correlated or Paired
• Means - 2x2 Cross-Over Designs
• Means - Higher-Order Cross-Over Designs
• Means - Many (ANOVA)
• Mediation Effects
• Meta-Analysis
• Michaelis-Menten Parameters
• Mixed Models
• Non-Inferiority
• Nonparametric
• Non-Zero and Non-Unity Null Tests
• Normality Tests
• Pilot Studies
• Proportions - One
• Proportions - Two Independent
• Proportions - Correlated or Paired
• Proportions - Cross-Over Designs
• Proportions - Sensitivity and Specificity
• Proportions - Many
• Quality Control
• Rates and Counts
• Reference Intervals
• Regression
• ROC Curves
• Sensitivity and Specificity
• Single-Case (AB)K Designs
• Superiority by a Margin Test
• Survival Analysis
• Tolerance Intervals
• Two-Part Models
• Variances and Standard Deviations
• Win-Ratio Composite Endpoint
• Bayesian Adjustment
• Tools
• Design of Experiments
   

系統需求

Minimum System Requirements for PASS 2024
In order to run PASS 2024, your computer must meet the following minimum standards:

Processor:
450 MHz or faster processor
32-bit (x86) or 64-bit (x64) processor
 
RAM:
256 MB (512 MB recommended)

Operating Systems:
Windows 11 or later
Windows 10
Windows 8.1
Windows 8
Windows 7
Windows Vista with Service Pack 2 or higher
 
Windows Server 2019 or later
Windows Server 2016
Windows Server 2012 R2
Windows Server 2012
Windows Server 2008 SP2/R2
 
Privileges:
Administrative rights required during installation only
 
Third Party Software:
Microsoft .NET 4.6 (Comes pre-installed with Windows 10 or later and Windows Server
2016 or later. Installation required on Windows 8.1 or earlier and Windows Server
2012 R2 or earlier. For systems where .NET 4.6 installation is required, a .NET 4.6
download helper will start automatically when you run the PASS setup file.)
Microsoft Windows Installer 3.1 or higher
Adobe Reader® 7 or higher (required for the Help System only)

Hard Disk Space:
425 MB for PASS (plus space for Microsoft .NET 4.6 if not already installed)
 
Printer:
Any Windows-compatible inkjet or laser printer