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: ComparisonGroupPF_xUPP_Layer.m
    path of file: ./repos/BRAPH-2/braph2/src/analysis
    
    the code of the file until where you have to start completion: classdef ComparisonGroupPF_xUPP_Layer < PanelProp
	%ComparisonGroupPF_xUPP_Layer plots the panel to select a layer.
	% It is a subclass of <a href="matlab:help PanelProp">PanelProp</a>.
	%
	% ComparisonGroupPF_xUPP_Layer plots the panel to select a layer from a multilayer graph from a drop-down list.
	% It is supposed to be used with the property Layer of ComparisonGroupPF_NU, ComparisonGroupPF_BU, or ComparisonGroupPF_GU.
	%
	% The list of ComparisonGroupPF_xUPP_Layer properties is:
	%  <strong>1</strong> <strong>ELCLASS</strong> 	ELCLASS (constant, string) is the class of the % % % .
	%  <strong>2</strong> <strong>NAME</strong> 	NAME (constant, string) is the name of the panel property layer.
	%  <strong>3</strong> <strong>DESCRIPTION</strong> 	DESCRIPTION (constant, string) is the description of the panel property layer.
	%  <strong>4</strong> <strong>TEMPLATE</strong> 	TEMPLATE (parameter, item) is the template of the panel property Layer.
	%  <strong>5</strong> <strong>ID</strong> 	ID (data, string) is a few-letter code for the panel property Layer.
	%  <strong>6</strong> <strong>LABEL</strong> 	LABEL (metadata, string) is an extended label of the panel property layer.
	%  <strong>7</strong> <strong>NOTES</strong> 	NOTES (metadata, string) are some specific notes about the panel property layer.
	%  <strong>8</strong> <strong>TOSTRING</strong> 	TOSTRING (query, string) returns a string that represents the concrete element.
	%  <strong>9</strong> <strong>WAITBAR</strong> 	WAITBAR (gui, logical) detemines whether to show the waitbar.
	%  <strong>10</strong> <strong>H_WAITBAR</strong> 	H_WAITBAR (evanescent, handle) is the waitbar handle.
	%  <strong>11</strong> <strong>DRAW</strong> 	DRAW (query, logical) draws the property panel.
	%  <strong>12</strong> <strong>DRAWN</strong> 	DRAWN (query, logical) returns whether the panel has been drawn.
	%  <strong>13</strong> <strong>PARENT</strong> 	PARENT (gui, item) is the panel parent.
	%  <strong>14</strong> <strong>BKGCOLOR</strong> 	BKGCOLOR (figure, color) is the panel background color.
	%  <strong>15</strong> <strong>H</strong> 	H (evanescent, handle) is the panel handle.
	%  <strong>16</strong> <strong>SHOW</strong> 	SHOW (query, logical) shows the figure containing the panel and, possibly, the callback figure.
	%  <strong>17</
    
function prop_default = getPropDefault(pointer)
			%GETPROPDEFAULT returns the default value of a property.
			%
			% DEFAULT = ComparisonGroupPF_xUPP_Layer.GETPROPDEFAULT(PROP) returns the default 
			%  value of the property PROP.
			%
			% DEFAULT = ComparisonGroupPF_xUPP_Layer.GETPROPDEFAULT(TAG) returns the default 
			%  value of the property with tag TAG.
			%
			% Alternative forms to call this method are (POINTER = PROP or TAG):
			%  DEFAULT = PR.GETPROPDEFAULT(POINTER) returns the default value of POINTER of PR.
			%  DEFAULT = Element.GETPROPDEFAULT(ComparisonGroupPF_xUPP_Layer, POINTER) returns the default value of POINTER of ComparisonGroupPF_xUPP_Layer.
			%  DEFAULT = PR.GETPROPDEFAULT(ComparisonGroupPF_xUPP_Layer, POINTER) returns the default value of POINTER of ComparisonGroupPF_xUPP_Layer.
			%
			% Note that the Element.GETPROPDEFAULT(PR) and Element.GETPROPDEFAULT('ComparisonGroupPF_xUPP_Layer')
			%  are less computationally efficient.
			%
			% See also getPropDefaultConditioned, getPropProp, getPropTag, getPropSettings, 
			%  getPropCategory, getPropFormat, getPropDescription, checkProp.
			
			prop = ComparisonGroupPF_xUPP_Layer.getPropProp(pointer);
			
			switch prop %CET: Computational Efficiency Trick
				case 36 % ComparisonGroupPF_xUPP_Layer.DROPDOWN
					prop_default = Format.getFormatDefault(18, ComparisonGroupPF_xUPP_Layer.getPropSettings(prop));
				case 1 % ComparisonGroupPF_xUPP_Layer.ELCLASS
					prop_default = 'ComparisonGroupPF_xUPP_Layer';
				case 2 % ComparisonGroupPF_xUPP_Layer.NAME
					prop_default = 'ComparisonGroupPF_xUPP_Layer';
				case 3 % ComparisonGroupPF_xUPP_Layer.DESCRIPTION
					prop_default = 'ComparisonGroupPF_xUPP_Layer plots the panel to select a layer from a multilayer graph from a drop-down list. It is supposed to be used with the property LAYER of ComparisonGroupPF_NU, ComparisonGroupPF_NS, or ComparisonGroupPF_NB.';
				case 4 % ComparisonGroupPF_xUPP_Layer.TEMPLATE
					prop_default = Format.getFormatDefault(8, ComparisonGroupPF_xUPP_Layer.getPropSettings(prop));
				case 5 % ComparisonGroupPF_xUPP_Layer.ID
					prop_default = 'ComparisonGroupPF_xUPP_Layer ID';
				case 6 % ComparisonGroupPF_xUPP_Layer.LABEL
					prop_default = 'ComparisonGroupPF_xUPP_Layer label';
				case 7 % ComparisonGroupPF_xUPP_Layer.NOTES
					prop_default = 'ComparisonGroupPF_xUPP_Layer notes';
				case 23 % ComparisonGroupPF_xUPP_Layer.EL
					prop_default = ComparisonGroupPF_NU();
				case 24 % ComparisonGroupPF_xUPP_Layer.PROP
					prop_default = 47;
				case 25 % ComparisonGroupPF_xUPP_Layer.HEIGHT
					prop_default = 48;
				otherwise
					prop_default = getPropDefault@PanelProp(prop);
			end