R: Survival after malignant melanoma

melanom {ISwR} | R Documentation

## Survival after malignant melanoma

### Description

The `melanom` data frame has 205 rows and 7 columns. It contains data relating to the survival of patients after an operation for malignant melanoma, collected at Odense University Hospital by K.T. Drzewiecki.

### Usage

    melanom

### Format

This data frame contains the following columns:

`no`

  a numeric vector, patient code.

`status`

  a numeric vector code, survival status; 1: dead from melanoma, 2: alive, 3: dead from other cause.

`days`

  a numeric vector, observation time.

`ulc`

  a numeric vector code, ulceration; 1: present, 2: absent.

`thick`

  a numeric vector, tumor thickness (1/100 mm).

`sex`

  a numeric vector code; 1: female, 2: male.

### Source

P.K. Andersen, Ø. Borgan, R.D. Gill, and N. Keiding (1991), Statistical Models Based on Counting Processes, Appendix 1, Springer-Verlag.

### Examples

    require(survival)
    plot(survfit(Surv(days,status==1)~1,data=melanom))

[Package ISwR version 2.0-7 Index]