e-Statistics > Textbook Data Sets

Tumor size

Description
An experiment involved 21 cancer tumors. For each tumor the weight was registered as well as the emitted radioactivity obtained with a special medical technique (scintigraphic images). Three data points from large tumors were removed.
Format
A data frame with 18 observations on the following 4 variables.
  1. id : tumor id (numeric)
  2. radioact emitted radioactivity (numeric)
  3. tumorwgt : tumor weight
  4. log.wgt : Logarithmic tumor weight
Source
Shin et al. (2005). Noninvasive imaging for monitoring of viable cencer cells using a dual-imaging reporter gene. The Journal of Nuclear Medicine, 45, 2109-2115.


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