Fast Differential Correlation Matrix Screening
Fast spectral algorithms for differential analysis on large-scale correlation matrices of Li et. al. (2021) <arXiv:2111.03721> are implemented. The methods can identify a group of genes exhibiting differential correlation patterns between two groups. For high-dimensional matrices, compressed spectral screening methods are also provided based on random subsampling. The work to build this package is partially supported by the NSF grant DMS-2015298.

Fast Creation of Dummy (Binary) Columns from Categorical
Variables
Creates dummy columns from columns that have categorical variables (character or factor types). This package provides a significant speed increase from creating dummy variables through model.matrix().

c(
person("Jacob", "Kaplan", email = "jacobkap@sas.upenn.edu", role = c("aut", "cre")),
person("Benjamin", "Schlegel", email = "kontakt@benjaminschlegl.ch", role =  "ctb"))
Creates dummy columns from columns that have categorical variables (character or factor types). You can also specify which columns to make dummies out of, or which columns to ignore. This package provides a significant speed increase from creating dummy variables through model.matrix().
Jacob Kaplan [aut, cre],
Benjamin Schlegel [ctb]

Fast Creation of Dummy (Binary) Columns and Rows from
Categorical Variables
c(
person("Jacob", "Kaplan", email = "jkkaplan6@gmail.com", role = c("aut", "cre")),
person("Benjamin", "Schlegel", email = "kontakt@benjaminschlegl.ch", role =  "ctb"))
Creates dummy columns from columns that have categorical variables (character or factor types). You can also specify which columns to make dummies out of, or which columns to ignore. Also creates dummy rows from character, factor, and Date columns. This package provides a significant speed increase from creating dummy variables through model.matrix().

c(
person("Jacob", "Kaplan", email = "jkkaplan6@gmail.com", role = c("aut", "cre"),
comment = c(ORCID = "0000-0002-0601-0387")),
person("Benjamin", "Schlegel", email = "kontakt@benjaminschlegl.ch", role =  "ctb"))
Jacob Kaplan [aut, cre] (<https://orcid.org/0000-0002-0601-0387>),
Benjamin Schlegel [ctb]