interpgap¶

Interpolate small NaN gaps in a signal.

Syntax¶

function interpolated = interpgap(x, maxgap, varargin)

Description¶

INTERPOLATED = INTERPGAP(X, MAXGAP) interpolates NaN gaps in a vector X that are smaller than or equal to a specified MAXGAP Gaps larger than MAXGAP are left unchanged. INTERPOLATED is a vector with the same size as X.

INTERPOLATED = INTERPGAP(..., METHOD) allows specifying the interpolation method: - 'linear' - Linear interpolation (default) - 'nearest' - Nearest neighbor interpolation - 'spline' - Spline interpolation - 'pchip' - Piecewise cubic Hermite interpolating polynomial

Source Code¶

View source code

Examples¶

% Create a signal with small gaps and interpolate
x = [1, 2, NaN, 4, 5, NaN, NaN, 8, 9, 10]';
interpolated = interpgap(x, 2);
interpolatedCubic = interpgap(x, 2, 'spline');

% Plot results
figure;
plot(1:length(x), x, 'ro', 1:length(interpolated), interpolated, 'b-');
legend('Original', 'Interpolated');
title('Signal Gap Interpolation');

See Also¶

• INTERP1
• ISNAN

• FILLMISSING

• API Reference

Module: TOOLS | Last Updated: 2025-09-04