Fixed:
% mapX1d.m: now it correctly takes care of interpolation case (and expterpolation).

% getScores1: xi_var{i} is garanteed to be symmetric

% cv_common should always return a scaler: the larger bandwidth is chosen.

% PCA.m 606: the input of linspace is garanteed to be double

TODO: 
% BUG in PACE: control cannot be set to 'look'
        p1=setOptions('selection_k',K,'regular', regular,'kernel', ...
        kernel, 'numBins',0,'newdata',out1,'error', error_type,'screePlot',0, ...
        'rho', rho, 'ngrid', ngrid, 'verbose', verbose);
		
% bandwidth selcector cannot handle integer valued time point input

% When method='CE', error=0, getScores1 does not spit out a warning or error
% even when Sigma_Yi is near singular
