This funtion organizes coxph.tree output into a format that can be used as an input for prune, plot_coxphtree, and mat.tvbeta.
output.coxphout(coxout)output from coxph.tree
output.coxphout returns a table with following columns.
Depth value specified in the argument
Time intervals present at each depth
Unique number assigned to each block
Node of a block that was divided into the left side in the next depth
Node of a block that was divided into the right side in the next depth
Modified score statistic of each node
Likelihood ratio value of each node
Starting time of the node
Ending time of the node
Number of observations in each node
Number of events in each node
Xu, R. and Adak, S. (2002), Survival Analysis with Time-Varying Regression Effects Using a Tree-Based Approach. Biometrics, 58: 305-315.