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BlueSky Statistics 6.1 Release Notes
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Enhancements
1. Added support for 52 continuous and 25 discrete distributions. These are available under top level menu called Distributions
Distributions:
Continuous:
Beta Probabilities
Beta Quantiles
Plot Beta Distribution
Sample from Beta Distribution
Cauchy Probabilities
Cauchy Quantiles
Plot Cauchy Distribution
Sample from Cauchy Distribution
Chi-squared Probabilities
Chi-squared Quantiles
Plot Chi-squared Distribution
Sample from Chi-squared Distribution
Exponential Probabilities
Exponential Quantiles
Plot Exponential Distribution
Sample from Exponential Distribution
F Probabilities
F Quantiles
Plot F Distribution
Sample from F Distribution
Gamma Probabilities
Gamma Quantiles
Plot Gamma Distribution
Sample from Gamma Distribution
Gumbel Probabilities
Gumbel Quantiles
Plot Gumbel Distribution
Sample from Gumbel Distribution
Logistic Probabilities
Logistic Quantiles
Plot Logistic Distribution
Sample from Logistic Distribution
Lognormal Probabilities
Lognormal Quantiles
Plot Lognormal Distribution
Sample from Lognormal Distribution
Normal Probabilities
Normal Quantiles
Plot Normal Distribution
Sample from Normal Distribution
t Probabilities
t Quantiles
Plot t Distribution
Sample from t Distribution
Uniform Probabilities
Uniform Quantiles
Plot Uniform Distribution
Sample from Uniform Distribution
Weibull Probabilities
Weibull Quantiles
Plot Weibull Distribution
Sample from Weibull Distribution
Discrete:
Binomial Probabilities
Binomial Quantiles
Binomial Tail Probabilities
Plot Binomial Distribution
Sample from Binomial Distribution
Geometric Probabilities
Geometric Quantiles
Geometric Tail Probabilities
Plot Geometric Distribution
Sample from Geometric Distribution
Hypergeometric Probabilities
Hypergeometric Quantiles
Hypergeometric Tail Probabilities
Plot Hypergeometric Distribution
Sample from Hypergeometric Distribution
Negative Binomial Probabilities
Negative Binomial Quantiles
Negative Binomial Tail Probabilities
Plot Negative Binomial Distribution
Sample from Negative Binomial Distribution
Poisson Probabilities
Poisson Quantiles
Poisson Tail Probabilities
Plot Poisson Distribution
Sample from Poisson Distribution
2. We have improved support for Rasch models by adding new dialogs for
Model Fitting->IRT->Multi-faceted Simple Rasch Models
Model Statistics->IRT->Likelihood Ratio tests
Model Statistics->IRT->Personfit Statistics
3. When working with date variables, the UTC offset is displayed in the variable grid. This is available as a new column.
4. In logistic regression, we have added support for a ROC Table. Note: For large datasets, this can introduce a performance penalty, so use this carefully.
This ROC Table option is available when scoring a dataset with a Logistic model. You can access this by first creating a logistic regression model, selecting
that model on the right hand top part of the screen, and clicking the Score button.
5. Added p value statistics to Ordinal Regression.
6. Improvements to File->Load Data from Package. You don't have to specify a R package. By default, we display all the datasets in the currently loaded packages.
You can optionally load data from a single package as well. Additionally, we show a message when the package selected does not contain a dataset.
7. For variables open in the BlueSky Statistics data grid with the POSIXct class, we show the offset from UTC in the variable grid as a separate column.
Bug Fixes
1. When you open an Excel file with a date, that date was not displayed correctly in BlueSky Statistics. We were incorrectly shifting the date by the UTC offset.
This has been fixed.
2. When you created a new POSIXct date variable using the menu under Data->Dates->Convert String To date, the date was displayed with the incorrect UTC offset.
This has been fixed.