Cortexa research tool·clinical·survival

Survival Log Rank Test

Perform Mantel-Cox log-rank test to compare survival between two groups. Tests null hypothesis that survival curves are identical. Returns chi-squared statistic, p-value, observed vs expected events per group. A p-value < 0.05 indicates statistically significant difference in survival. Use for: comparing treatment arms, high vs low expression groups.

Livelast probed 2026-04-30 23:07Z· 3950msCortexa

Status

The most recent probe succeeded. Safe to call from the agent today.

Last probed: 1d ago
Last success: 1d ago
Last latency: 3950ms

Schema

JSON Schema the agent (or your API call) must match.

{
  "properties": {
    "durations_a": {
      "description": "Time durations for group A",
      "items": {
        "type": "number"
      },
      "type": "array"
    },
    "durations_b": {
      "description": "Time durations for group B",
      "items": {
        "type": "number"
      },
      "type": "array"
    },
    "events_a": {
      "description": "Event indicators for group A (1=event, 0=censored)",
      "items": {
        "type": "integer"
      },
      "type": "array"
    },
    "events_b": {
      "description": "Event indicators for group B (1=event, 0=censored)",
      "items": {
        "type": "integer"
      },
      "type": "array"
    },
    "operation": {
      "description": "Operation type",
      "enum": [
        "log_rank_test"
      ],
      "type": "string"
    }
  },
  "required": [
    "operation",
    "durations_a",
    "events_a",
    "durations_b",
    "events_b"
  ],
  "type": "object"
}

Examples (1)

Default Survival Log Rank Test call

public-safeinput

{
  "durations_a": [],
  "durations_b": [],
  "events_a": [],
  "events_b": [],
  "operation": ""
}

Expected response keys: success

Anonymous-safe example. Rate-limited; no sign-in required.

Identifiers

Catalog ID: tu_Survival_log_rank_test
Tool name: Survival_log_rank_test
Added: 2026-04-30 22:47Z
Tags: tooluniverse

Survival Log Rank Test

Livelast probed 2026-04-30 23:07Z· 3950msCortexa

Schema

JSON Schema the agent (or your API call) must match.

{ "properties": { "durations_a": { "description": "Time durations for group A", "items": { "type": "number" }, "type": "array" }, "durations_b": { "description": "Time durations for group B", "items": { "type": "number" }, "type": "array" }, "events_a": { "description": "Event indicators for group A (1=event, 0=censored)", "items": { "type": "integer" }, "type": "array" }, "events_b": { "description": "Event indicators for group B (1=event, 0=censored)", "items": { "type": "integer" }, "type": "array" }, "operation": { "description": "Operation type", "enum": [ "log_rank_test" ], "type": "string" } }, "required": [ "operation", "durations_a", "events_a", "durations_b", "events_b" ], "type": "object" }