# sjstats: Collection of Convenient Functions for Common Statistical Computations

Collection of convenient functions for common statistical computations, which are not directly provided by R's base or stats packages. This package aims at providing, first, shortcuts for statistical measures, which otherwise could only be calculated with additional effort (like standard errors or root mean squared errors). Second, these shortcut functions are generic (if appropriate), and can be applied not only to vectors, but also to other objects as well (e.g., the Coefficient of Variation can be computed for vectors, linear models, or linear mixed models; the r2()-function returns the r-squared value for 'lm', 'glm', 'merMod' or 'lme' objects). The focus of most functions lies on summary statistics or fit measures for regression models, including generalized linear models and mixed effects models. However, some of the functions also deal with other statistical measures, like Cronbach's Alpha, Cramer's V, Phi etc.

- Author
- Daniel Lüdecke <d.luedecke@uke.de>
- Date of publication
- 2016-12-08 20:38:28
- Maintainer
- Daniel Lüdecke <d.luedecke@uke.de>
- License
- GPL-3
- Version
- 0.7.0
- URLs

## Man pages

- boot_ci
- Standard error and confidence intervals for bootstrapped...
- bootstrap
- Generate nonparametric bootstrap replications
- chisq_gof
- Chi-square goodness-of-fit-test
- cod
- Tjur's Coefficient of Discrimination
- converge_ok
- Convergence test for mixed effects models
- cv
- Coefficient of Variation
- deff
- Design effects for two-level mixed models
- efc
- Sample dataset from the EUROFAMCARE project
- eta_sq
- Eta-squared of fitted anova
- get_model_pval
- Get p-values from regression model objects
- hoslem_gof
- Hosmer-Lemeshow Goodness-of-fit-test
- icc
- Intraclass-Correlation Coefficient
- inequ_trend
- Compute trends in status inequalities
- levene_test
- Levene-Test for One-Way-Anova
- mean_n
- Row means with min amount of valid values
- mwu
- Mann-Whitney-U-Test
- odds_to_rr
- Get relative risks estimates from logistic regressions
- overdisp
- Check overdispersion of GL(M)M's
- phi
- Measures of associations for contingency tables
- pred_vars
- Get predictor and response variables from models
- prop
- Proportion of values in a vector
- r2
- Compute r-squared of (generalized) linear (mixed) models
- reliab_test
- Check internal consistency of a test or questionnaire
- re_var
- Random effect variances
- rmse
- Compute model quality
- robust
- Robust standard errors for regression models
- se
- Standard Error for variables or coefficients
- se_ybar
- Standard error of sample mean for mixed models
- sjstats-package
- Collection of Convenient Functions for Common Statistical...
- smpsize_lmm
- Sample size for linear mixed models
- std
- Standardize and center variables
- std_beta
- Standardized beta coefficients and CI of linear and mixed...
- table_values
- Expected and relative table values
- var_pop
- Calculate population variance and standard deviation
- weight
- Weight a variable
- wtd_sd
- Weighted statistics for variables

## Files in this package

sjstats |

sjstats/inst |

sjstats/inst/CITATION |

sjstats/NAMESPACE |

sjstats/NEWS |

sjstats/NEWS.md |

sjstats/data |

sjstats/data/efc.RData |

sjstats/R |

sjstats/R/odds_to_rr.R |

sjstats/R/mwu.R |

sjstats/R/S3-methods.R |

sjstats/R/sjStatistics.R |

sjstats/R/converge_ok.R |

sjstats/R/phi.R |

sjstats/R/bootstrap.R |

sjstats/R/prop.R |

sjstats/R/cv.R |

sjstats/R/samplesize_lme.R |

sjstats/R/se.R |

sjstats/R/rmse.R |

sjstats/R/std_b.R |

sjstats/R/pseudo_r2.R |

sjstats/R/pred_vars.R |

sjstats/R/merMod_p.R |

sjstats/R/overdisp.R |

sjstats/R/internal_consistency.R |

sjstats/R/icc.R |

sjstats/R/weight.R |

sjstats/R/eta_sq.R |

sjstats/R/var_pop.R |

sjstats/R/helpfunctions.R |

sjstats/R/mean_n.R |

sjstats/R/boot_ci.R |

sjstats/R/std.R |

sjstats/R/efc.R |

sjstats/R/inequ_trends.R |

sjstats/R/gof.R |

sjstats/R/robust.R |

sjstats/README.md |

sjstats/MD5 |

sjstats/build |

sjstats/build/partial.rdb |

sjstats/DESCRIPTION |

sjstats/man |

sjstats/man/prop.Rd |

sjstats/man/inequ_trend.Rd |

sjstats/man/bootstrap.Rd |

sjstats/man/chisq_gof.Rd |

sjstats/man/cv.Rd |

sjstats/man/rmse.Rd |

sjstats/man/weight.Rd |

sjstats/man/get_model_pval.Rd |

sjstats/man/eta_sq.Rd |

sjstats/man/re_var.Rd |

sjstats/man/std_beta.Rd |

sjstats/man/deff.Rd |

sjstats/man/std.Rd |

sjstats/man/mean_n.Rd |

sjstats/man/table_values.Rd |

sjstats/man/mwu.Rd |

sjstats/man/icc.Rd |

sjstats/man/var_pop.Rd |

sjstats/man/odds_to_rr.Rd |

sjstats/man/pred_vars.Rd |

sjstats/man/boot_ci.Rd |

sjstats/man/robust.Rd |

sjstats/man/sjstats-package.Rd |

sjstats/man/levene_test.Rd |

sjstats/man/se.Rd |

sjstats/man/hoslem_gof.Rd |

sjstats/man/efc.Rd |

sjstats/man/reliab_test.Rd |

sjstats/man/overdisp.Rd |

sjstats/man/converge_ok.Rd |

sjstats/man/se_ybar.Rd |

sjstats/man/phi.Rd |

sjstats/man/r2.Rd |

sjstats/man/smpsize_lmm.Rd |

sjstats/man/cod.Rd |

sjstats/man/wtd_sd.Rd |