data-handling

scikit-survival primarily handles right-censored data.

Skills
Scientific
0

What it does and how to use it

A skill that teaches Claude Code to do scientific tasks well. It is packaged knowledge the model uses whenever it is relevant.

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Install (Claude Code)

mkdir -p .claude/skills/data-handling && curl -fsSL https://doutorai.pt/data/lib/skills__data-handling.md -o .claude/skills/data-handling/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

# Data Handling and Preprocessing

## Understanding Survival Data

### The Surv Object

Survival data in scikit-survival is represented using structured arrays with two fields:
- **event**: Boolean indicating whether the event occurred (True) or was censored (False)
- **time**: Time to event or censoring

```python
from sksurv.util import Surv

# Create survival outcome from separate arrays
event = np.array([True, False, True, False, True])
time = np.array([5.2, 10.1, 3.7, 8.9, 6.3])

y = Surv.from_arrays(event=event, time=time)
print(y.dtype)  # [('event', '?'), ('time', '<f8')]
```

### Type

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