insert custom row and new row name in a existing matrix in r

# Create a matrix
mat <- matrix(1:10, nrow = 2)

# Insert a new row with custom values
new_row <- c(11, 12, 13, 14, 15)
mat <- rbind(mat, new_row)

# Rename the row
rownames(mat)[nrow(mat)] <- "custom_row_name"
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