EasyStatCalc, Easy statistics

## Important information for Samsung users ##
On some Samsung models, there may be no decimal or space key on the numeric keyboard. In that case, please install Google Keyboard from the Play Store and try it as the default keyboard.

By using EasyStatCalc, you can do statistics calculation and analysis by an easy and simple operation.

You can put data into the Data-window by using a keyboard or by pasting data from this app (other statistics methods) or other apps (e.g. Editors and Google Sheet).

[Calc] button performs calculation and displays results to Result-window. Data on Result-window can be shared by some other apps (e.g. Mailers, Google Sheet, Google Drive etc).

Each statistics method has useful [Help] and [Example] buttons.

Entered data and results calculated by each method are memorized until the next use. This function is a feature of this app and it is very convenient.

Currently EasyStatCalc supports following parametric and nonparametric statistics calculations.

This app can be used for basic statistics, biostatistics, medical statistics and clinical statistics.


* Parametric statistics:

1. Mean, SEM and SD, etc
- Arithmetic mean
- Geometric mean
- Harmonic mean)
- Confidence interval (CI)
- Sum
- Sum of Square
- Variance
- Skewness
- Kurtosis

2. F-test for equality of 2 variances
- Mean and SD
- F-test

3. t-Test (Student's and Welch's)
- Mean, SEM and SD
- F-test to compare 2 variances
- Student's t-test
- Welch's procedure when both variance is not equal

4. t-Test (Paired)
- Paired p-test for paired 2 groups

5. One-way analysis of variance (ANOVA)
- Mean and SEM
- ANOVA

6. Multiple t-test with Bonferroni's correction
- Mean, SEM and ANOVA
- Multiple comparisons

7. Correlation, Regression and test
- Correlation coefficient
- Regression coefficent
- Coefficient of determination
- Test for correlation


* Nonparametric statistics:

1. Median, Range and Quartiles, etc
- Median
- Range
- Minimum
- First Quartile
- Second Quartile (Median)
- Third Quartile
- Maximum
- Quartile deviation

2. Mann-Whitney's U test (U-test for difference of distribution between 2 groups)

3. Sign Test

4. Wilcoxon's signed-rank test (paired 2 groups)

5. Chi square test(2x2 table) (Chi square test of independence)

6. McNemar's test (paired case)

7. Fisher's exact test




* Major version history

Ver 1.2.0 (2016.12.3) + "Multiple t-test(Bonferroni's correction)" was added. + "One-way analysis of variance (ANOVA)" was updated. + A bug of "Mann-Whitney's U-test" was fixed.　　（Bug: Printed B gruop data were A group data.)

Ver 1.1.2 (2016.10.29) + "F-test for equality of 2 variances" was added. + "One-way analysis of variance (ANOVA)" was added. + "Fisher's exact test" was added. + Some bugs in usability were fixed.

Ver 1.1.1 (2016.09.29) + "Sign test" was added. + A bug of "Test for Correlation" was fixed. + Followings were added to "Mean, SEM and SD, etc".
- Skewness
- Kurtosis
- Geometric mean
- Harmonic meanVer 1.0.9 (2016-08-30) + "McNemar test" was added. + "Chi square test" was updated.

Ver 1.0.4(2016-07-26) + Maximal sample number was increased to 100 from 50.

Ver 1.0 (2016-07-15) release