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Telemetry · Mathematics · AIIssue 01 — The LineNative on Mac · Windows

User guideIV. Calculate & reuse

Formulas and vehicle calculations

Create new channels from recorded channels or saved calculations, for use in plots, tables and marks.

Where to find it

  • Navigation → Calculations → + New → Formula
Formula editor: inputs, units and preview
Formula editor: inputs, units and preview

Steps

  1. Open Calculations

    Click Calculations in the navigation. The panel opens on Current recording; Search all calculations looks through this recording, My library and Built-in calculations at once.

  2. Pick a starting point

    Click + New and choose Formula. Built-ins are grouped into General calculations, Signal processing, Vehicle calculations and External scripts; Custom formula starts from scratch.

  3. Write the formula

    Enter a Name and an Output unit. Choose a channel for the first input, a; + Add input adds x1, x2 and so on (up to 16), and you can rename them. Then type the Formula with those variable names, for example a * 2. Formula help lists every function.

  4. Check the preview

    Once the inputs are complete, the preview runs by itself and draws a dashed line on the plots. Result shows the mean, valid samples and a lap summary; the footer reads Previewed · not saved.

  5. Save and show it

    Click Save, or Save & add to plot. Show in… → Map and plot marks or Lap table saves the formula and shows it there.

Good to know

  • Vehicle calculations

    GPS motion, Suspension motion, Tyres & wheel speed, Loads & friction, Lean angle and IMU mounting & attitude create groups of engineering channels. Fill in Inputs & parameters and the Channel prefix, click Preview, then save the channels.

  • Edit, reuse or delete

    Pick a calculation under Calculations in this recording to edit it; its supporting channels expand underneath. More actions offers Save to my calculation library, Across recordings… and Delete. If other calculations use it, remove those references first.

  • Use it in other recordings

    Across recordings… binds a saved formula's inputs in up to 8 recordings and compares the results with Input bindings, Distribution and Relationship plot.

  • Reference record parameters

    Reference record parameters adds values from the vehicle setup as p1, p2…. Numeric parameters go straight into the formula; curve parameters use LOOKUP(p1, a).

  • Limits

    A recording can store up to 64 calculated channels, and a formula can be up to 4096 characters long.

  • Lattiro Assistant · Beta (invite only)

    In the beta, formulas proposed by the assistant open in this editor for review before you save them.

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