Research Signal Baseline Shift Tool

Description

Compare supplied research signal baseline choices without physiological diagnosis.

Physiological models use measured signals, reference levels, rates, and physical balances. A content difference, normalized phase, or energy term depends on its unit system and model assumptions. Supplied coefficients and annotations define the calculation but do not establish biological plausibility or measurement accuracy.

Compare supplied research signal baseline choices without physiological diagnosis.

When to use this tool

Use Research Signal Baseline Shift when you need this explicit signal, content, phase, flow, or physical-balance term under compatible supplied units.

How to use the tool and how it works

Enter signal, oldBaseline, newBaseline. Use the units and conventions below.
Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
Read relativeToOld, relativeToNew, baselineShift. Use the output convention below.

Return relativeToOld=signal-oldBaseline, relativeToNew=signal-newBaseline, and baselineShift=newBaseline-oldBaseline.^[1]

Input field	Meaning and units	Accepted input
signal	Signal	Required. Finite number.
oldBaseline	Old Baseline	Required. Finite number.
newBaseline	New Baseline	Required. Finite number.

Output field	Interpretation	Returned shape
relativeToOld	Relative To Old	Required. Finite number.
relativeToNew	Relative To New	Required. Finite number.
baselineShift	Baseline Shift	Required. Finite number.

json

{
  "input": {
    "signal": 10,
    "oldBaseline": 2,
    "newBaseline": 4
  },
  "output": {
    "relativeToOld": 8,
    "relativeToNew": 6,
    "baselineShift": 2
  }
}

Limitations and assumptions

All quantities need one signal unit. This shifts a supplied reference level without fitting a baseline, correcting drift over time, or establishing clinical meaning.
Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Signed zero is exported as zero.

Alternative or Complementary methods

Choose a physiological and measurement model suited to the signal or experiment. Verify coefficients, unit conversions, baseline definitions, and sampling support before combining local terms.

References

Calculation and input contract: physiology/research-signal-baseline-shift — tool.io

Similar or alternative tools

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