Today we released the 2^nd alpha of the Analyse-it Method Evaluation Edition 3.5.

Alpha releases are pre-release versions of the software that are still in active development. We release them to a small group of customers so we can get feedback and quickly identify and fix any problems before the public beta release. If you want to take part in the test phase reply or comment on to this post or contact us. You can use pre-release versions of Analyse-it alongside your existing version of Analyse-it, so it won't disrupt your work. And, if you help during in the test phases you will get a discount on the upgrade (a free upgrade for those who contribute the most) when the product is released later this year.

This latest alpha release includes linearity and precision analysis, plus diagnostic test performance (ROC analysis and binary test performance) and reference intervals from the 1^st alpha.

Some of the new features included so far are:

Precision

• Graybill-Wang / Ting-Burdick-Graybill-Jeyaratnam-Lu modified large sample confidence interval estimators for variance components – produces confidence closer to the stated level than Satterthwaire confidence intervals, which can be too liberal.
• Support for unbalanced 1-way and 2-way nested random ANOVA models.

Linearity

• Hsieh-Liu confidence interval estimator for degree of nonlinearity.
• Equality and equivalence hypothesis tests for nonlinearity.

Reference interval

• Harrel-Davis, Bootstrap, and Robust Biweight quantiles.
• Box-Cox and other transformations.

ROC

• Compare up to 10 independent or correlated ROC curves.
• Equality, equivalence and non-inferiority hypothesis tests.
• Estimate false positive fraction (FPF) at fixed sensitivity, sensitivity at fixed FPF, and sensitivity/FPF at fixed cut-off.
• Find optimal decision threshold based on costs.

Binary diagnostic tests

• Compare sensitivity and specificity of 2 independent or correlated tests.
• Diagnostic odds-ratio and Youden’s index.
• Improved confidence interval estimators for likelihood ratio and predictive values.

We are now starting to release test previews of a major update to the Analyse-it Method Evaluation edition. The new release will include many new features (we'll reveal more in the coming weeks) and will support 32- and 64-bit versions of Excel 2007, 2010, and 2013.

During the initial test phases we release development versions of the application to a small group of customers to ensure it installs and runs as expected on a wide range of PCs and configurations. The official beta test phase stage then follows where more customers are invited to download and use the software, while we iron-out the final few bugs before the official release. The official release is planned for summer 2013.

What is a sample quantile or percentile? Take the 0.25 quantile (also known as the 25^th percentile, or 1^st quartile) -- it defines the value (let’s call it x) for a random variable, such that the probability that a random observation of the variable is less than x is 0.25 (25% chance).

A simple question, with a simple definition? The problem is calculating quantiles. The formulas are simple enough, but a take a quick look on Wikipedia and you’ll see there are at least 9 alternative methods . Consequently, statistical packages use different formulas to calculate quantiles. And we're sometimes asked why the quantiles calculated by Analyse-it sometimes don’t agree with Excel, SAS, or R.

Yesterday we improved the help in the and added a statistical reference guide. The guide tells you about the statistical procedures in Analyse-it, with help on using and understanding the plots and statistics. It’s a work in progress, and we intend to improve it further with your comments and feedback, but it’s important to understand the role of the guide.

Firstly, the guide is not intended to be a statistics textbook. While it covers key concepts in statistical analysis, it is no substitute for learning statistics from a good teacher or textbook.

Leeds, England (PRWEB) October 03, 2012 -- Analyse-it Software, Ltd. today announced a major new release of their popular , Analyse-it®. With support for Excel 2007, 2010 and the forthcoming Excel 2013, Analyse-it transforms Microsoft Excel into a cost-effective powerful statistical analysis and data visualization package. Statistics and plots are included for exploring and describing data, estimating parameters, testing hypotheses, uncovering relationships and fitting models.

Today we pushed the release candidate of the Analyse-it Standard Edition v3.0 for Microsoft Excel 2007 & 2010, our statistical analysis software for Microsoft Excel.

The release candidate is feature complete and is intended to be the final, almost public release of the software.

The software is now validated against our library of thousands of tests to ensure the statistics and plots are accurate and correct. You can now use the software in your day to day work and, like previous versions, it can be used alongside your current version of Analyse-it until you become more comfortable with it.

We’re pleased to release the final beta of the Analyse-it Standard Edition, v3.0. The beta is now publically open to anyone as we iron out any final issues and conduct final testing before release.

To download the beta, please visit:

Screenshot: Analyse-it fit model analysis includes an influence plot to identify points with a substantial effect on the fitted model.

Today we released the first public beta of Analyse-it Standard Edition, v3.0.

Maybe we're biased, but it is an amazing product! It's been a heck of a lot of work, but the range of statistical tests and plots in Analyse-it v3 rival what the expensive, established statistical packages provide. In fact, in many cases we’ve surpassed what they offer. And the statistical plots go beyond what's available in any other Excel add-in.

If you follow us on  you will have seen that we released a new version of the Analyse-it Standard Edition, v3.0, to testing this week.

During the initial test phases we release development versions of the application to a small group of customers to ensure it installs and runs as expected on a wide range of PCs and configurations. The official beta test phase stage then follows where more customers are invited to download and use the software, while we iron-out the final few bugs before the official release. The official release is planned for early 2012.

It's been a few months since we released Analyse-it 2.22, which added compatibility with, what was then, the Excel 2010 release candidate. Now  it seems many are upgrading from Excel 2003 and are contacting us to ask whether Analyse-it is compatible. It is!

Interestingly, starting with Office 2010, Microsoft is providing 32- and 64-bit versions of Microsoft Excel. Until now Excel has been a 32-bit application only (going back to Excel 5 which was a 16-bit application).  natively supports the 64-bit microprocessors becoming more common in desktop PCs and allows you to work with truly enormous quantities of data.