Core Features
- Exceptionally easy to use
- Statistics guide built into the software
- Includes all common statistical methods
- State-of-the-art computational methods for fast and reliable results (e.g. bootstrap around 100 times faster than R)
- Can link easily with Microsoft Excel
- Delivered and supported directly via the web
- Designed for both front line research and education
- Built upon twenty years of research and development
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- Workbooks (similar to Excel spreadsheet)
- Maximum worksheet capacity is 64K columns by 1M rows
- Read and write Microsoft Excel files (2013/2010/2007 or 97-2003)
- Import any common spreadsheet data
- Import text based data (formatted or plain)
- Read/write reports in portable rich text format (RTF) or HTML
- Windows metafile scaleable graphics (can edit components in Word)
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- On-line algebraic calculator
- Apply user-defined functions/formulae to data in worksheet
- Many arithmetic, trigonometric, algebraic and logical functions
- Sort in worksheet (like Excel) or as separate function
- Rotate/transpose blocks of data in worksheet
- Ranks and normal scores (van der Waerden, Blom and expected normal order)
- Combine or split data by group identifier or separate columns
- Transformations (many, including ladder of powers)
- Standardization
- Anthropometric standardization (child growth charts)
- All pairwise differences, means and slopes
- Dummy/design/indicator variable generation
- Convert text to numbers
- Generate random numbers (uniform, normal, chi-square, F, t, binomial, Poisson, gamma,
exponential)
- Categorise a continuous variable
- Extract a subset of data by search rules
- Tabulate and detabulate row/column classified data
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- Univariate descriptive statistics (count, mean, standard deviation, standard error,
confidence interval, skewness, kurtosis, median, quartiles, range and a user defined quantile)
- Frequencies
- Tabulations and crosstabs
- Time series summary with area under time-concetration curve for pharmacokinetics
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- Strong emphasis on confidence interval inference
- Exact (profile likelihood) methods used wherever practical
- Additional mid-P coverage given with many intervals
- Help on interpretation
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- Simple linear regression and Pearson's correlation
- Multiple/general linear with best subset selection
- Principal components analysis (PCA) with Cronbach's alpha
- Influential data identification, residual diagnostics and plots
- Grouped linear regression with analysis of covariance
- Various linearized estimates
- Probit analysis (probit or logit), dose response, ED50, LD50
- Polynomial regression with area under curve and back interpolation
- Logistic regression with confidence intervals for cross classification and
odds ratios, and bootstrap
- Conditional logistic regression for matched case-control studies
- Poisson regression, relative risk, incidence rate ratio
- Curve fitting
- Cox regression, proportional hazards, hazard ratio
- Kendall and Spearman rank correlations with confidence intervals
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- Uses robust random number generator (Mersenne-Twister)
- Intervention-control pairs (with balanced allocation)
- Allocation to independent intervention and control groups
- Block randomization
- Preference group allocation
- Random series of integers from X to Y
- Generate random numbers from distributions (uniform, normal, binomial, Poisson, beta, F, t, chi-square, gamma,
lognormal, Cauchy, Weibull, exponential, logistic, negative binomial) for simulation
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System Requirements
- Any version of Microsoft Windows that is supported by Microsoft running .Net Framework version 4.6.1 or later, including 7 (with Service Pack 1), 8, 8.1 and 10
- 32-bit or 64-bit Windows (bigger datasets and faster on 64-bit)
- At least 1GB memory free
- Some users run StatsDirect on a Mac with Microsoft Windows installed using virtualisation (e.g. via Vmware Fusion or Parallels)
- Some users run StatsDirect on Windows server-class operating systems: 2008 R2, 2012, 2012 R2, 2016, 2019
- Previous StatsDirect version 2 is available for old Windows NT, 2000, XP, Vista, or 7 without Service Pack 1
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Availability
Available for purchase via the web.
Official orders taken from academia, public sector and corporations.
Special pricing for individuals, students and developing world.
Third party tutorials such as learning with StatsDirect are available.
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