a national data service providing access and support for an extensive range of key economic and social data, both quantitative and qualitative, spanning many disciplines and themes
The Pew Research Center’s Internet & American Life Project, a nonprofit, nonpartisan research organization, provides free data and analysis on the social
Cox regression model is widely used in medical research to assess the effect of several risk factors on the survival time of patients. The {ggforest} function from {survminer} Paket easily creates a forest plot of its model estimates.