diff --git a/R/regime_means.R b/R/regime_means.R
index 76f9245..f193d57 100644
--- a/R/regime_means.R
+++ b/R/regime_means.R
@@ -12,8 +12,8 @@
 #'
 #' @export
 regime_means <- function(data, col, rsi){  
-  col <- data[,col]
-  rsi <- data[,rsi]
+  col <- data[[col]]
+  rsi <- data[[rsi]]
   current_regime <- c()
   regime_means <- c()
   
diff --git a/man/rshift-package.Rd b/man/rshift-package.Rd
deleted file mode 100644
index 8cc4037..0000000
--- a/man/rshift-package.Rd
+++ /dev/null
@@ -1,29 +0,0 @@
-% Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/extendr-wrappers.R
-\docType{package}
-\name{rshift-package}
-\alias{rshift}
-\alias{rshift-package}
-\title{rshift: Paleoecology Functions for Regime Shift Analysis}
-\description{
-Contains a variety of functions, based around regime shift analysis of paleoecological data. Citations: Rodionov() from Rodionov (2004) \doi{10.1029/2004GL019448} Lanzante() from Lanzante (1996) \doi{10.1002/(SICI)1097-0088(199611)16:11\%3C1197::AID-JOC89\%3E3.0.CO;2-L} Hellinger_trans from Numerical Ecology, Legendre & Legendre (ISBN 9780444538680) rolling_autoc from Liu, Gao & Wang (2018) \doi{10.1016/j.scitotenv.2018.06.276} Sample data sets lake_data & lake_RSI processed from Bush, Silman & Urrego (2004) \doi{10.1126/science.1090795} Sample data set January_PDO from NOAA: \url{https://www.ncei.noaa.gov/access/monitoring/pdo/}.
-}
-\seealso{
-Useful links:
-\itemize{
-  \item \url{https://github.com/alexhroom/rshift}
-  \item Report bugs at \url{https://github.com/alexhroom/rshift/issues}
-}
-
-}
-\author{
-\strong{Maintainer}: Alex H. Room \email{alex.room@btinternet.com} (\href{https://orcid.org/0000-0002-5314-2331}{ORCID}) [copyright holder]
-
-Other contributors:
-\itemize{
-  \item Felipe Franco-Gaviria (\href{https://orcid.org/0000-0003-4799-1457}{ORCID}) [contributor, funder]
-  \item Dunia H. Urrego (\href{https://orcid.org/0000-0001-7938-5529}{ORCID}) [contributor, funder]
-  \item The authors of the dependency Rust crates (see inst/AUTHORS file for details) [contributor]
-}
-
-}