> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ionworks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Read analysis data as columnar JSON, at the caller's density

> Return analysis columns as ``{name: [values]}``, windowed and decimated.

The counterpart to ``/download-url``: that hands the browser the whole parquet, which
is what "save this file" needs and what drawing it does not. Supports semantic zoom —
refetch with ``x_min``/``x_max`` and a width-derived ``max_points`` on each gesture.



## OpenAPI

````yaml https://api.ionworks.com/openapi.json get /analyses/{analysis_id}/series
openapi: 3.1.0
info:
  title: FastAPI
  version: 0.1.0
servers:
  - url: https://api.ionworks.com
    description: Production
security: []
paths:
  /analyses/{analysis_id}/series:
    get:
      tags:
        - Analyses
      summary: Read analysis data as columnar JSON, at the caller's density
      description: >-
        Return analysis columns as ``{name: [values]}``, windowed and decimated.


        The counterpart to ``/download-url``: that hands the browser the whole
        parquet, which

        is what "save this file" needs and what drawing it does not. Supports
        semantic zoom —

        refetch with ``x_min``/``x_max`` and a width-derived ``max_points`` on
        each gesture.
      operationId: get_analysis_series_analyses__analysis_id__series_get
      parameters:
        - name: analysis_id
          in: path
          required: true
          schema:
            type: string
            title: Analysis Id
        - name: x
          in: query
          required: true
          schema:
            type: string
            description: Column plotted on x; also the axis binned on
            title: X
          description: Column plotted on x; also the axis binned on
        - name: columns
          in: query
          required: true
          schema:
            type: string
            description: Comma-separated columns to return
            title: Columns
          description: Comma-separated columns to return
        - name: max_points
          in: query
          required: false
          schema:
            anyOf:
              - type: integer
                maximum: 80000
                minimum: 1
              - type: 'null'
            description: Width-derived row ceiling. Omit to return the window undecimated.
            title: Max Points
          description: Width-derived row ceiling. Omit to return the window undecimated.
        - name: x_min
          in: query
          required: false
          schema:
            anyOf:
              - type: number
              - type: 'null'
            description: Lower x bound (inclusive)
            title: X Min
          description: Lower x bound (inclusive)
        - name: x_max
          in: query
          required: false
          schema:
            anyOf:
              - type: number
              - type: 'null'
            description: Upper x bound (inclusive)
            title: X Max
          description: Upper x bound (inclusive)
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError

````