Mark Wickens

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EOX / EOY

[FX-870P/VX-4]

Purpose

Estimated value functions based on linear regression of statistical data.

Format

EOX(formula)
EOY(formula)

Example

PRINT EOX(5)
PRINT EOY(10)

Parameters

formula: Numeric expression specifying the known value.

Explanation

Function Returns
EOX(Y) Estimated value of X for a given Y value
EOY(X) Estimated value of Y for a given X value
  1. EOY(X) calculates the estimated Y value corresponding to the given X value using the linear regression line Y = LRA + LRB * X.
  2. EOX(Y) calculates the estimated X value corresponding to the given Y value using the inverse of the regression relationship.
  3. Paired (X, Y) data must be entered using the STAT command before using these functions.

See