Chart Axis Zero Truncated Bar Misleading Checker
Audit actual nonnegative bar values and plotted bounds, exposing zero exclusion and first-two apparent-versus-value relative difference; outside-axis values remain signed, unavailable ratios use −1. Flags do not prove deceptive intent or apply to all chart types.
Description
A truncated bar axis changes apparent lengths relative to zero-based values.
A truncated bar axis changes apparent lengths relative to zero-based values. Out-of-range bars should remain visible.1
Enter at least two nonnegative values, nonnegative minimum and positive maximum strictly above minimum. Return zero-exclusion, outside indices, signed length fractions and relative first-two differences.
When to use Chart Axis Zero Truncated Bar Misleading Checker
Use Chart Axis Zero Truncated Bar Misleading Checker when you need to evaluate the supplied records under the calculation and evidence rules below. Unavailable ratios use −1, which can also be a real relative decline; inspect denominators. No deceptive intent or rule for other chart types is inferred.
Prepare the actual editorial, source, layout, timing or audience records requested. Supply explicit house-policy limits and preserve missing evidence.
How to use Chart Axis Zero Truncated Bar Misleading Checker and understand its results
- Prepare the actual editorial, source, layout, timing or audience records requested. Supply explicit house-policy limits and preserve missing evidence.
- Enter observedNonnegativeBarValues, plottedAxisMinimum, plottedAxisMaximum using the field table and calculation rules, then run the tool.
- Read axisExcludesZero, plottedValuesOutsideAxisIndices, apparentBarLengthFractions, fractionalDifferenceRelativeToFirstValue, fractionalDifferenceRelativeToFirstPlottedBarLength. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| observedNonnegativeBarValues | Observed nonnegative bar values | list of number | Required |
| plottedAxisMinimum | Plotted axis minimum | number | Required |
| plottedAxisMaximum | Plotted axis maximum | number | Required |
Enter at least two nonnegative values, nonnegative minimum and positive maximum strictly above minimum. Return zero-exclusion, outside indices, signed length fractions and relative first-two differences.
lengthFraction=(value−axisMin)/(axisMax−axisMin); comparisons use first two values Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| axisExcludesZero | Axis excludes zero | boolean |
| plottedValuesOutsideAxisIndices | Plotted values outside axis indices | list of number |
| apparentBarLengthFractions | Apparent bar length fractions | list of number |
| fractionalDifferenceRelativeToFirstValue | Fractional difference relative to first value | number |
| fractionalDifferenceRelativeToFirstPlottedBarLength | Fractional difference relative to first plotted bar length | number |
{
"input": {
"observedNonnegativeBarValues": [
90,
100
],
"plottedAxisMinimum": 80,
"plottedAxisMaximum": 120
},
"output": {
"axisExcludesZero": true,
"plottedValuesOutsideAxisIndices": [],
"apparentBarLengthFractions": [
0.25,
0.5
],
"fractionalDifferenceRelativeToFirstValue": 0.1111111111111111,
"fractionalDifferenceRelativeToFirstPlottedBarLength": 1
}
}Limitations and assumptions
Unavailable ratios use −1, which can also be a real relative decline; inspect denominators. No deceptive intent or rule for other chart types is inferred.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.
Alternative or Complementary methods
Use Cherry Picked Start Date Trend Splice Warning Checker: Selected and full-window trends can differ in sign. Comparing fitted slopes exposes that evidence without determining motive. For a complementary task, use Poll Horse Race Rounding Sum 100 Checker: Rounded exhaustive disjoint poll categories may sum above or below 100. Caller-supplied rounding intervals can test arithmetic feasibility.
References
Similar or alternative tools
- Cherry Picked Start Date Trend Splice Warning Checker
Selected and full-window trends can differ in sign. Comparing fitted slopes exposes that evidence without determining motive.
- Poll Horse Race Rounding Sum 100 Checker
Rounded exhaustive disjoint poll categories may sum above or below 100. Caller-supplied rounding intervals can test arithmetic feasibility.