TXM is a free, open source text corpus analysis environment. Its features include concordance, collocate search, frequencies based on the CQP full text search engine and statistical functions based on R packages. It can export results in CSV, XML or SVG format, and runs as a standalone desktop application in Windows, OS X and Linux environments, or as a web portal (download the leaflet for more).

Analyse-it Quality Control & Improvement Edition provides the statistical analysis you need to understand processes, bring them under control, and find improvements that better your product.

• Bring processes under statistical control so they are stable and predictable with powerful Shewhart, cumulative sum, and moving average control charts. Include Xbar-R, Xbar-S, R, S, I-MR, time weighted CUSUM, UWMA, EMA plots, and WECO, Nelson, Montomery or custom rulesets.

• Ensure products are capable of meeting end-user specifications using capability indices to compare in-control process performance to your specification limits.

• Improve processes and products by identifying solutions that really work using hypothesis tests and model fitting techniques. Includes ANOVA with multiple comparison, multiple linear and logistic regression, PCA and Factor analysis.

• Identify actions that will reap the most rewards using Pareto analysis to identify commonly occurring defects and monitor them during process improvement.

BLLIP Parser (or Charniak-Johnson parser) is a statistical natural language parser for analyzing text to determine its grammatical structure. Grammatical structures are provided in Penn Treebank format.

Statwing is an easy-to-use, web-based tool for data analysis and visualization. Upload data, select variables of interest, and Statwing automatically selects statistical tests and visualizations, then distills the results into plain English sentences (as well as traditional statistical output for those so inclined).

Free trial available, as well as multiple pricing plans:

Statwing Silver — $50/month (unlimited datasets up to 50 MB each)

Statwing Gold — $100/month (unlimited datasets up to 500 MB each)

Statwing Enterprise — Inquire for cost (unlimited datasets up to 5 GB each, optional on-premise deploy)