Rystats

Added several convenience functions for surveys and minimum residual factor analysis

Under RyStats.survey
1. reverse_score: Reverse scores Likert-like responses
2. cronbach_alpha: Computes Cronbach's alpha for internal reliability
3. mcdonald_omega: Computes McDonald's omega for internal reliability

Under RyStats.factoranalysis
4. minres_factor_analysis

Added inferential tests for pearsons correlation

Functions Added


Logisitic Regression
* logistic_regression

Mediation
* simple_mediation

Two Way Anova

* Implemented Two-Way ANOVA that has Type 1 / 2 / 3 analyses

Linear Regression

* Implemented linear regression

Added Inferential functions
* one_sample_ttest
* equal_variance_ttest
* unequal_variance_ttest
* repeated_ttest
* equal_variance_oneway_anova
* unequal_variance_oneway_anova
* repeated_oneway_anova
* tukey_posthoc
* games_howell_posthoc
* bonferonni_posthoc

Added plotting functions including:

* correlation_image: show a heatmap of a correlation matrix
* loading_image: show a heatmap of a loadings matrix
* scree_plot: plot the eigenvalues for dimensionality assessment
* loading_table: create a table to view the loadings