Description. Return the matrix obtained by converting all the variables in a data frame to numeric mode and then binding them together as the columns of a matrix. Factors and ordered factors are replaced by their internal codes.
There are four main types of leukemia â acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL) and chronic myeloid leukemia (CML) â as well as a number of less common types.here are four main types of leukemia â acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL) and chronic myeloid leukemia (CML) â as well as a number of less common types.
We are conducting groundbreaking research on leukemia's four major types: 1  Acute myeloid leukemia (AML) Acute myeloid leukemia is the most common type of adult leukemia and can also occur in children.2  If untreated, AML usually progresses quickly.lick for high-res version. Leukemias are blood-and bone marrow cancers categorized by which type of blood cell they affect and how quickly they progress. Leukemia arises in the two main types of white blood cells: Lymphoid and meyloid cells. Fast-growing leukemias are called acute leukemias.