Calibration drift and offline recalibration

Calibration drift and offline recalibration. These functions form the eyeprocess 0.6.0.9000 measurement-intelligence programme and use dependency-free reference implementations with explicit evidence limits.

Usage

detect_calibration_drift(x, references = NULL, window = "30 sec",
  method = c("targets", "known_aois", "fixation_density"), x_col = NULL,
  y_col = NULL, time_col = NULL)
fit_offline_recalibration(x, method = c("translation", "affine", "polynomial"),
  robust = TRUE, x_col = NULL, y_col = NULL, reference_x_col = NULL,
  reference_y_col = NULL)
apply_offline_recalibration(x, model, x_col = NULL, y_col = NULL,
  suffix = "_recalibrated")
audit_recalibration(before, after, minimum_improvement = NULL)
plot_calibration_vector_field(x, ...)
plot_calibration_error_ellipses(x, ...)
plot_drift_over_time(x, ...)
plot_recalibration_before_after(x, ...)
plot_screen_coverage(x, ...)

Arguments

x

Input object or data structure appropriate for the selected analysis.

references

Argument controlling `references`; see the function usage and returned audit metadata.

window

Argument controlling `window`; see the function usage and returned audit metadata.

method

Argument controlling `method`; see the function usage and returned audit metadata.

x_col

Argument controlling `x_col`; see the function usage and returned audit metadata.

y_col

Argument controlling `y_col`; see the function usage and returned audit metadata.

time_col

Argument controlling `time_col`; see the function usage and returned audit metadata.

robust

Argument controlling `robust`; see the function usage and returned audit metadata.

reference_x_col

Argument controlling `reference_x_col`; see the function usage and returned audit metadata.

reference_y_col

Argument controlling `reference_y_col`; see the function usage and returned audit metadata.

model

Argument controlling `model`; see the function usage and returned audit metadata.

suffix

Argument controlling `suffix`; see the function usage and returned audit metadata.

before

Argument controlling `before`; see the function usage and returned audit metadata.

after

Argument controlling `after`; see the function usage and returned audit metadata.

minimum_improvement

Argument controlling `minimum_improvement`; see the function usage and returned audit metadata.

...

Additional arguments passed to the underlying method or plotting function.

Details

The APIs return auditable S3 objects. Plot wrappers call registered base-graphics methods. Experimental or approximate engines are labelled in object status fields and should be validated before confirmatory or operational use.

Value

An eyeprocess result object, data frame, model object, plot, or audit table as documented by the individual function.

See also

plot_diagnostics(), plot_evidence(), and plot_sensitivity().