NCSS是一個強大的統(tǒng)計和圖形程序，可用于從醫(yī)學調(diào)查和業(yè)務分析到工程，質(zhì)量控制和學術(shù)研究的各種行業(yè)。您可以點擊下方按鈕免費試用，或者觀看下方觀看視頻，了解有關(guān)NCSS功能的更多信息。

通過下載免費試用版，查看下方的視頻來了解NCSS

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NCSS的圖、圖表和圖形

Kaplan-Meier曲線

散點圖

誤差條圖

環(huán)形直方圖

三維曲面圖

直方圖

餅圖

森林圖

ROC曲線

預測和時序圖

三維散點圖

等高圖

條形圖

箱形圖

質(zhì)量管理圖

產(chǎn)品功能詳情

使用NCSS進行分析

通過一些簡單的步驟，您可以獲得有意義的數(shù)值結(jié)果和干凈清晰的圖形。使用“數(shù)據(jù)”窗口導入或輸入數(shù)據(jù)。打開NCSS程序進行所需的分析，選擇列并運行分析以獲得準確且易于閱讀的數(shù)字輸出和圖形。

數(shù)據(jù)管理

NCSS可以輕松導入所有主要類型的數(shù)據(jù)文件，或者您可以復制和粘貼數(shù)據(jù)，也可以直接輸入數(shù)據(jù)。NCSS具有出色的過濾和轉(zhuǎn)換功能，可用于管理數(shù)據(jù)。

程序的選擇

使用下拉菜單，過程搜索或類別樹，可以輕松找到正確的分析或圖形過程。 可以點擊資源查看視頻，以了解如何在NCSS中選擇所需的過程。

分析設(shè)置

 分析和圖形工具易于使用，并且每個選項都有內(nèi)置的幫助消息。選擇要分析的列，選擇所需的報告和圖，然后單擊“運行”獲取結(jié)果。如果您需要其他幫助，則只需單擊一下即可獲得每個過程的完整文檔。

地塊設(shè)計

NCSS提供了80多個地塊。一些圖是常規(guī)分析過程（例如方差分析或回歸分析）的一部分，而其他圖則是獨立工具。所有NCSS地塊都是高度可定制的。用戶可以控制布局，符號，標題，圖例，軸，網(wǎng)格線等。繪圖設(shè)置易于保存，以備將來使用或共享。

輸出流程

運行NCSS程序時，分析結(jié)果和所需的圖將顯示在輸出窗口中?？梢詥螕羲袌D形以在單獨的窗口中顯示以進行查看或保存。使用輸出導航樹可以輕松導航輸出。 輸出和圖形已準備就緒，可以查看，復制和粘貼或保存?？梢詫⒍鄠€運行結(jié)果發(fā)送到輸出庫，以進行保存或比較分析。 

引用NCSS的出版物

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NCSS contains a comprehensive collection of statistical procedures for analyzing your data. These procedures cover a wide range of topics, including analysis of variance, clustering, correlation, curve fitting, cross tabulation, descriptive statistics, design of experiments, forecasting, time series, mass appraisal, meta-analysis, mixed models, multivariate analysis, nonparametric tests, operations research (linear programming), proportions, quality control, regression, survival, reliability, comparisons of means, and much more.

Plots, Charts, and Graphs in NCSS

NCSS has a large collection of tools for plots, charts, and graphs. These graphics procedures offer extensive flexibility to get your graph to look just as you want it, while still maintaining ease-of-use and intuitiveness.

NCSS Overview

The home window of NCSS is a column-based spreadsheet where your data can be easily entered or imported from all major statistical or data file types. Straightforward filters, transformations, labels, and formats can be used to get your data exactly as you want it to be.

Then you can choose from over 190 analysis and graphics procedures to analyze and visualize your data.

From a procedure window, you can select the columns you wish to analyze, adjust any other parameters to your liking, and press Run.

Your results will appear in an Output window that is prepared for viewing, printing, copying-and-pasting, or saving. A navigation pane allows you to quickly jump to any part of the output. You can double-click on a graph to save it in any of several file formats.

If you like a particular setup on a procedure window, and would like to perform the same or a similar analysis later, you can save the procedure template to be opened or shared at any time.

Statistical Analysis in NCSS

Regression Analysis

NCSS software has a full array of powerful tools for regression analysis. Below is a sample of some of the regression procedures available in NCSS.You can jump to a description of a particular type of regression analysis in NCSS by clicking on one of the links below.

Comparing Means

The group of tools for comparison of means constitute a very large portion of the common statistical tasks required in research. NCSS contains a variety of tools for tackling these tasks that are easy-to-use and carefully validated for accuracy. Use the links below to jump to the comparison of means topic you would like to examine.

Survival Analysis

NCSS contains a variety of tools for analyzing survival data that are easy-to-use and carefully validated for accuracy. Use the links below to jump to the survival analysis topic you would like to examine.

Crosstabs and Analysis of Proportions

NCSS contains many tools for analyzing and comparing proportions and analysis of contingency tables. Each procedure is easy-to-use and carefully validated for accuracy. Use the links below to jump to the proportions topic you would like to examine.

Mass Appraisal

NCSS contains an array of tools for mass appraisal analysis, including Appraisal Ratios, Comparables - Sales Price, and Hybrid Appraisal Models, as well as tools for regression and descriptive summaries. Each procedure is easy-to-use and validated for accuracy. Use the links below to jump to a specific mass appraisal topic.

Curve Fitting

NCSS contains several tools for finding and modeling the best (often nonlinear) fit of a response (Y) to one or more independent variables (X’s). Each procedure is easy-to-use and validated for accuracy. Use the links below to jump to a specific curve fitting topic.

Time Series and Forecasting

NCSS contains an array of tools for time series and forecasting, including ARIMA, spectral analysis, decomposition forecasting, and exponential smoothing. Each procedure is straightforward to use and validated for accuracy. Use the links below to jump to a specific time series / forecasting topic.

Clustering

NCSS contains several tools for clustering, including K-Means clustering, fuzzy clustering, and medoid partitioning. Each procedure is easy to use and is validated for accuracy. Use the links below to jump to a clustering topic.

Quality Control

NCSS contains several tools and charts for analyzing quality control, including XBar, Attribute, Pareto, and Levey-Jennings charts. Each procedure is easy to use and is validated for accuracy. Use the links below to jump to a quality control topic.