Statistics Visualizer 2.4


Category: Education
Price: $.99 -> Free, Version: 2.4 (iTunes)

Description:

Statistics Visualizer for iPad (nicknamed StatViz) is a perfect, comprehensive statistical data analysis tool for professionals and researchers. This app provides you with dynamic graphs, statistic calculations with detailed explanations for the results and more.

To conduct statistical data analysis, some basic statistics knowledge is required, such as hypothesis, probability, p-value. If you are completely new to statistics, this app may not fit you very well. StatViz is not a replacement of textbooks or class notes and actually never intended to. However, StatViz does provide a collection of examples, each of which is a real data analysis to help you understand each step of data analysis. For example, you can follow the sample data set to prepare your data for a particular test, learn how to conduct the test with different parameters, and gain insight in the dynamic graphs. And the app's Notes section gives you a detail explanation for the graph and result statistics.

To learn the detail of this app, please check out our demo video at: http://www.go2stat.com/ipad-app


The free version WITHOUT in-app purchase provides a full collection of probability distributions:

* Binomial
* Poisson
* Geometric
* Negative Binomial
* Normal
* Student's t
* Chi-Square
* Exponential
* Snedecor's F

WITH in-app purchase, the following topics are provided:

- Histogram
- Descriptive statistics
- Quantiles
- Box-and-whisker plot
- One sample t-test
- Two sample t-test
- Matched-Pair t-test
- Simple Linear Regression
- Contingency table / Chi-Square test
- One way ANOVA
- Distribution

If you're a statistics teacher, use it help your students learn the steps to conducting statistical data analysis. The visual presentation of dynamic graphs will add clarity and reinforcement to your lessons.

If you are a professional, this app is a great demonstrating tool to visualize your data on the road. It can read CSV files or TAB delimited TXT files. So you can prepare your data set in Excel and then import files to StatViz via:

* WiFi
* iTunes file sharing
* Download with URL
* Open in other apps that support Document Interchange, such as, Mail, MobileMe, Dropbox, etc

After importing the data, the user-friendly interface allows you to conduct statistical data analysis easily. Just select the variables you are interested in and tap a topic, then you can get results immediately. You no longer need to pour over long, boring tables for calculation. StatViz takes care of that for you. And the app's interface, graphs and outputs are the same as most standard statistical software, like JMP and SPSS. And most importantly it uses the same calculation engine as R. So all the results and p-values are guaranteed accurate. The program output, graphics and report, can be emailed as PNG and text or copied to the clipboard. By the way, the app has been tested and run fast on iPad for over ten thousand observations. If your data is really large, that might be a problem.

So far, StatViz does not have functionality to allow directly type in data set. If you like to manually input data on the iPad, we recommend to use free app "PlainText" (DropBox text editing). Please make sure data is comma separated and option "Show file extensions" of "PlainText" is turned on in order to save your data as a .csv file. Then you can use "Open in" feature in DropBox app to import the file to StatViz.

Think of StatViz as a portable data viewer. It's right there, on the go, ready to display the data to you anytime and anywhere.

Please email us your feedback. We will answer your questions in 24 hours!

What's New

Add ANOVA and t test with unequal variance.
Significant improvement on CSV/TXT file importing. If you posted negative rating according to this issue before, please consider change your rating.

Statistics Visualizer



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