funnel

Use for ordered stages with a non-negative count (y ≥ 0). Keep input stage order. series is ignored. Negatives fail with E_NEGATIVE_VALUE.

Do not use for part-to-whole slices (pie) or signed running totals (waterfall).

x stage · y number ≥ 0 · series ignored

Rules. Keep order. Centered bands narrow from each stage's value to the next. The stage name and value sit to the right of the shape. Negatives → E_NEGATIVE_VALUE.

Example

markvis: 2
type: funnel
title: Activate still keeps 180 of 1,200 Midtown visits
x: stage
y: people

stage,people
Visit,1200
Signup,480
Verify,310
Activate,180

Activate still keeps 180 of 1,200 Midtown visits

stage	people
Visit	1200
Signup	480
Verify	310
Activate	180

When the block is wrong

The rows stay, with one line that names the error.

markvis: 2
type: funnel
title: Negative stage
x: stage
y: people

stage,people
Visit,1200
Signup,-40

stage	people
Visit	1200
Signup	-40

E_NEGATIVE_VALUE: funnel values must be >= 0

Generated from packages/types/funnel/ and the type's row in SPEC.md.