diff --git a/R/mfairInitialization.R b/R/mfairInitialization.R
index 8ade85c..49bb65b 100644
--- a/R/mfairInitialization.R
+++ b/R/mfairInitialization.R
@@ -34,11 +34,10 @@ createMFAIR <- function(Y, X,
     Y_sparse <- TRUE
     message("The main data matrix Y has been stored in the sparse mode!")
   } else if (Y_sparse == TRUE) { # Y is not in sparse mode, but we want it to be
-    obs_tf <- !is.na(Y) # Indicates whether observed or missing
-    obs_indices <- which(obs_tf, arr.ind = TRUE) # Indices of observed entries
+    obs_indices <- which(!is.na(Y), arr.ind = TRUE) # Indices of observed entries
     Y <- Matrix::sparseMatrix(
       i = obs_indices[, "row"], j = obs_indices[, "col"],
-      x = Y[obs_tf],
+      x = Y[obs_indices],
       dims = c(N, M),
       symmetric = FALSE, triangular = FALSE,
       index1 = TRUE
diff --git a/data-raw/ml10m.R b/data-raw/ml10m.R
index 4187a24..8111350 100644
--- a/data-raw/ml10m.R
+++ b/data-raw/ml10m.R
@@ -69,8 +69,7 @@ movie_genre_matrix <- t(sapply(
   movies[, 3],
   FUN = function(x) {
     as.integer(all_genres %in%
-                 unlist(strsplit(x, split = "|", fixed = TRUE))
-    )
+      unlist(strsplit(x, split = "|", fixed = TRUE)))
   },
   USE.NAMES = FALSE
 ))