You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: Increment_point.m
    path of file: ./repos/OPEN_FPE_IFT/.previousVersions/V4 Functions
    
    the code of the file until where you have to start completion: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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function calculates two increment time series for the two different lags tau1 and tau2,
% taking into account the multi-point analysis.
%
% Arguments IN
% tau1 = first increments in steps
% tau2 = second increments in steps
% d = data 
% condition = condition for multi-point analysis
% tol = This input is for multipoint statistics
%
% Arguments OUT
% incr1 = Velocity increment for step tau1
% incr2 = Velocity increment for step tau2
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function [incr1,incr2] = Increment_point(tau1,tau2,d,condition,tol)
incr1           = nan;
incr2           = nan;
if  tau1>tau2
    delta = tau1;

    index = find(d(1:end