On this Picostat.com statistics page, you will find information about the aml data set which pertains to Remission Times for Acute Myelogenous Leukaemia. The aml data set is found in the boot R package. You can load the aml data set in R by issuing the following command at the console data("aml"). This will load the data into a variable called aml. If R says the aml data set is not found, you can try installing the package by issuing this command install.packages("boot") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the aml R data set. The size of this file is about 179 bytes.
Remission Times for Acute Myelogenous Leukaemia
aml data frame has 23 rows and 3 columns.
A clinical trial to evaluate the efficacy of maintenance chemotherapy for
acute myelogenous leukaemia was
conducted by Embury et al. (1977) at Stanford University. After reaching a
stage of remission through treatment by chemotherapy, patients were randomized
into two groups. The first group received maintenance chemotherapy and the
second group did not. The aim of the study was to see if maintenance
chemotherapy increased the length of the remission. The data here formed a
preliminary analysis which was conducted in October 1974.
This data frame contains the following columns:
The length of the complete remission (in weeks).
An indicator of right censoring. 1 indicates that the patient had a relapse
time is the length of the remission. 0 indicates that the patient
had left the study or was still in remission in October 1974, that is the
length of remission is right-censored.
The group into which the patient was randomized. Group 1 received
maintenance chemotherapy, group 2 did not.
Package survival also has a dataset
aml. It is the same
data with different names and with
group replaced by a factor
The data were obtained from
Miller, R.G. (1981) Survival Analysis. John Wiley.
Davison, A.C. and Hinkley, D.V. (1997)
Bootstrap Methods and Their Application. Cambridge University Press.
Embury, S.H, Elias, L., Heller, P.H., Hood, C.E., Greenberg, P.L. and
Schrier, S.L. (1977) Remission maintenance therapy in acute myelogenous
leukaemia. Western Journal of Medicine, 126, 267-272.
Dataset imported from https://www.r-project.org.