visualize 4.2 - Hotfix - "Seeing is Educational"
----------------------------------------------------------------
A big thanks to Psychology Professor Sharon Klinkenberg of the University of Amsterdam, who reported many of the bugs that were addressed in this release!
MINOR CHANGES
* Error handling has been modified such that when improper parameters are supplied in the following scenarios the program will not render a graph and provide log out as to why the graph did not render:
**Supply 1 statistic for a bounded or tails condition now stops the program from generating a graph. In the console, the user will receive:
***"Supplied stat length < 2 and section="" requires two statistics. Please resubmit with parameter stat=c(lower,upper)."
**Supply 2 statistics but do not request a bounded or tails condition now stops the program from generating a graph. In the console, users will receive:
***"Supplied stat length > 1 and section="" requires one statistic. Please resubmit with stat=your_test_statistic."
**Supply only 1 strict value for discrete distributions and request bounded or tails, then the strict value will apply to both ends. In the console, users will receive:
***"Supplied strict length < 2, setting inequalities to "" inequality."
** A warning is now issued when requesting tails option for a nonsymmetric distribution.
BUG FIX
* Area for the F distribution should now render more reliably underneath the probability density function plot.
* F Distribution correctly renders F-Statistic instead of T-Statistic.
* F Distribution's parameters (df1,df2) are now correctly rendered.
* If a test statistic for a continuous distribution begins above or below the graph's bounds, then the graph will render without a highlighted area.
* All graphs involving nonsymmertric distributions now begin on the x-axis at 0.
visualize 4.1 - Hotfix - "Seeing is Windowed"
----------------------------------------------------------------
BUG FIX
* Documentation should no longer disappear off screen.
visualize 4.0 - Live Update - "Seeing is Split"
----------------------------------------------------------------
NEW
* Two tail evaluations for both continuous and discrete distributions!
* Highlighted shading in continuous distributions!
* Start and End markers for test statistic(s) on x-axis!
DOCUMENTATION
* Updated visualize. functions to account for new
visualize 3.0 - Live Update - "Seeing is Strict"
----------------------------------------------------------------
NEW
* Evaluate probabilities with strict inequalities!
MINOR CHANGES
* Rewrote sections to increase efficiency and reliability.
visualize 2.2 - Hotﬁx - "Seeing is Correct"
----------------------------------------------------------------
BUG FIX
* Corrects rendering issue with supplied stat not meeting certain criteria.
visualize 2.1 - Hotﬁx - "Seeing is Off"
----------------------------------------------------------------
BUG FIX
* Corrects minor graphing labels.
* Revised error handling.
visualize 2.0 - Live Update - "Seeing is Believing"
----------------------------------------------------------------
NEW
* Support for the following Continuous Distributions: Cauchy, F, Log Normal, Logistic, T, and Wilcox.
* Bar graph rendering for discrete probability distributions.
MINOR CHANGES
* Rewritten Distribution Wrapper
visualize 1.0 - Live Update - "Seeing is Magic"
----------------------------------------------------------------
NEW
* Graph the PDF or PMF of a probability function and determine the probability enclosed.
* See characteristics of the distribution requested (Parameters, Mean, and Variance).
* Supported Continuous Distributions: Chi-squared, beta, gamma, exponential, uniform, and normal.
* Supported Discrete Distributions: Geometric, binomial, poisson, hypergeometric, and negative binomial.
THANKS
* Visualize was made as an independent study project to learn about creating r-packages and explore probability distributions that was approved and mentored by Statistics Professor Jeffrey A Douglas at the University of Illinois at Urbana-Champaign.