DATA_PATH               The Path to the Data Folder
EXT_DATA_PATH           The Path to the External Data Folder for Non-R
                        Data Files
W_kernel                Define the inverse Fourier transform function
                        of W
W_kernel_ft             Define the Fourier transform of a infinite
                        kernel proposed in Schennach 2004
biasBound_condExpectation
                        Bias bound approach for conditional expectation
                        estimation
biasBound_density       Bias bound approach for density estimation
create_biasBound_config
                        Create a configuration object for bias bound
                        estimations
create_kernel_functions
                        Create kernel functions based on configuration
cv_bandwidth            Cross-Validation for Bandwidth Selection
epanechnikov_kernel     Epanechnikov Kernel
epanechnikov_kernel_ft
                        Fourier Transform Epanechnikov Kernel
fun_approx              Approximation Function for Intensive
                        Calculations
gen_sample_data         Generate Sample Data
get_avg_f1x             Kernel point estimation
get_avg_fyx             Kernel point estimation
get_avg_phi             Compute Sample Average of Fourier Transform
                        Magnitude
get_avg_phi_log         Compute log sample average of fourier transform
                        and get mod
get_conditional_var     get the conditional variance of Y on X for
                        given x
get_est_Ar              get the estimation of A and r
get_est_B               get the estimation of B
get_est_b1x             Estimation of bias b1x
get_est_byx             Estimation of bias byx
get_est_vy              get the estimation of Vy
get_sigma               Estimation of sigma
get_sigma_yx            Estimation of sigma_yx
get_xi_interval         get xi interval
kernel_reg              Kernel Regression function
normal_kernel           Normal Kernel Function
normal_kernel_ft        Fourier Transform of Normal Kernel
plot_ft                 Plot the Fourier Transform
rpoly01                 Generate n samples from the distribution
sample_data             Sample Data
select_bandwidth        Select Optimal Bandwidth
silverman_bandwidth     Silverman's Rule of Thumb for Bandwidth
                        Selection
sinc                    Infinite Kernel Function
sinc_ft                 Define the closed form FT of the infinite order
                        kernel sin(x)/(pi*x)
true_density_2fold      True density of 2-fold uniform distribution
