Package: metaHelper 1.0.0

metaHelper: Transforms Statistical Measures Commonly Used for Meta-Analysis

Helps calculate statistical values commonly used in meta-analysis. It provides several methods to compute different forms of standardized mean differences, as well as other values such as standard errors and standard deviations. The methods used in this package are described in the following references: Altman D G, Bland J M. (2011) <doi:10.1136/bmj.d2090> Borenstein, M., Hedges, L.V., Higgins, J.P.T. and Rothstein, H.R. (2009) <doi:10.1002/9780470743386.ch4> Chinn S. (2000) <doi:10.1002/1097-0258(20001130)19:22%3C3127::aid-sim784%3E3.0.co;2-m> Cochrane Handbook (2011) <https://handbook-5-1.cochrane.org/front_page.htm> Cooper, H., Hedges, L. V., & Valentine, J. C. (2009) <https://psycnet.apa.org/record/2009-05060-000> Cohen, J. (1977) <https://psycnet.apa.org/record/1987-98267-000> Ellis, P.D. (2009) <https://www.psychometrica.de/effect_size.html> Goulet-Pelletier, J.-C., & Cousineau, D. (2018) <doi:10.20982/tqmp.14.4.p242> Hedges, L. V. (1981) <doi:10.2307/1164588> Hedges L. V., Olkin I. (1985) <doi:10.1016/C2009-0-03396-0> Murad M H, Wang Z, Zhu Y, Saadi S, Chu H, Lin L et al. (2023) <doi:10.1136/bmj-2022-073141> Mayer M (2023) <https://search.r-project.org/CRAN/refmans/confintr/html/ci_proportion.html> Stackoverflow (2014) <https://stats.stackexchange.com/questions/82720/confidence-interval-around-binomial-estimate-of-0-or-1> Stackoverflow (2018) <https://stats.stackexchange.com/q/338043>.

Authors:Robert Emprechtinger [aut, cre], Guido Schwarzer [aut], Ulf Tölch [aut], Günther Schreder [aut], Gerald Gartlehner [aut]

# Install 'metaHelper' in R:

install.packages('metaHelper', repos = c('https://robertemprechtinger.r-universe.dev', 'https://cloud.r-project.org'))

On CRAN:

Last updated 2 months agofrom:ae1f26669b. Checks:OK: 7. Indexed: yes.

Help page	Topics
Absolute Risk Difference	ARD_from_RR
Confidence Interval for Proportions	CI_from_proportions
Standard Deviation from Confidence Interval	SD_from_CI
Standard Deviation from Standard Error (Single Group)	SD_from_SE
Combined Standard Deviation for Multiple Groups	SD_M_n_pooled_from_groups
Within-Group Standard Deviation for Matched Groups	SD_within_from_SD_r
Pooled Standard Deviation from Confidence Interval	SDp_from_CIp
Pooled Standard Deviation from Two Standard Deviations	SDp_from_SD
Standard Deviation from the Pooled Standard Error	SDp_from_SEp
Standard Error for a Single Group	SE_from_SD
Standard Error of from Confidence Intervals of Odds Ratio	SE.SMD_from_OR.CI
Standard Error from Sample Sizes and SMD	SE.SMD_from_SMD
Standard Error from Confidence Interval for Differences of Means	SEp_from_CIp
Standard Error (Pooled)	SEp_from_SDp
Standard Error from Treatment Effect and p-Value	SEp_from_TE.p
Standardized Mean Differences from Group Data	SMD_from_group
Standardized Mean Difference (SMD) from Means and Pooled Standard Deviation	SMD_from_mean
Calculates SMD from Matched Groups	SMD_from_mean_matched
Standardized Mean Difference from Odds Ratio	SMD_from_OR