function?[h?display_array]?=?displayData（X?example_width）
%DISPLAYDATA?Display?2D?data?in?a?nice?grid
%???[h?display_array]?=?DISPLAYDATA（X?example_width）?displays?2D?data
%???stored?in?X?in?a?nice?grid.?It?returns?the?figure?handle?h?and?the?
%???displayed?array?if?requested.

%?Set?example_width?automatically?if?not?passed?in
if?~exist（‘example_width‘?‘var‘）?||?isempty（example_width）?
	example_width?=?round（sqrt（size（X?2）））;
end

%?Gray?Image
colormap（gray）;

%?Compute?rows?cols
[m?n]?=?size（X）;
example_height?=?（n?/?example_width）;

%?Compute?number?of?items?to?display
display_rows?=?floor（sqrt（m））;
display_cols?=?ceil（m?/?display_rows）;

%?Between?images?padding
pad?=?1;

%?Setup?blank?display
display_array?=?-?ones（pad?+?display_rows?*?（example_height?+?pad）?...
???????????????????????pad?+?display_cols?*?（example_width?+?pad））;

%?Copy?each?example?into?a?patch?on?the?display?array
curr_ex?=?1;
for?j?=?1:display_rows
	for?i?=?1:display_cols
		if?curr_ex?>?m?
			break;?
		end
		%?Copy?the?patch
		
		%?Get?the?max?value?of?the?patch
		max_val?=?max（abs（X（curr_ex?:）））;
		display_array（pad?+?（j?-?1）?*?（example_height?+?pad）?+?（1:example_height）?...
		??????????????pad?+?（i?-?1）?*?（example_width?+?pad）?+?（1:example_width））?=?...
						reshape（X（curr_ex?:）?example_height?example_width）?/?max_val;
		curr_ex?=?curr_ex?+?1;
	end
	if?curr_ex?>?m?
		break;?
	end
end

%?Display?Image
h?=?imagesc（display_array?[-1?1]）;

%?Do?not?show?axis
axis?image?off

drawnow;

end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1502??2016-03-16?17:08??bp\displayData.m

?????文件???????2108??2016-03-16?17:08??bp\ex3.m

?????文件????7511764??2016-03-16?17:08??bp\ex3data1.mat

?????文件??????79592??2016-03-16?17:08??bp\ex3weights.mat

?????文件???????2637??2016-03-16?17:08??bp\ex3_nn.m

?????文件???????8749??2016-03-16?17:08??bp\fmincg.m

?????文件???????1624??2016-03-16?17:08??bp\lib\jsonlab\AUTHORS.txt

?????文件???????3862??2016-03-16?17:08??bp\lib\jsonlab\ChangeLog.txt

?????文件????????881??2016-03-16?17:08??bp\lib\jsonlab\jsonopt.m

?????文件???????1551??2016-03-16?17:08??bp\lib\jsonlab\LICENSE_BSD.txt

?????文件??????18732??2016-03-16?17:08??bp\lib\jsonlab\loadjson.m

?????文件??????15574??2016-03-16?17:08??bp\lib\jsonlab\loadubjson.m

?????文件????????771??2016-03-16?17:08??bp\lib\jsonlab\mergestruct.m

?????文件??????19369??2016-03-16?17:08??bp\lib\jsonlab\README.txt

?????文件??????17462??2016-03-16?17:08??bp\lib\jsonlab\savejson.m

?????文件??????16123??2016-03-16?17:08??bp\lib\jsonlab\saveubjson.m

?????文件???????1094??2016-03-16?17:08??bp\lib\jsonlab\varargin2struct.m

?????文件???????1195??2016-03-16?17:08??bp\lib\makeValidFieldName.m

?????文件???????3734??2016-03-16?17:08??bp\lib\submitWithConfiguration.m

?????文件???????1936??2016-03-16?17:08??bp\lrCostFunction.m

?????文件???????2238??2016-03-16?17:08??bp\oneVsAll.m

?????文件???????1146??2016-03-16?17:08??bp\predict.m

?????文件???????1514??2016-03-16?17:08??bp\predictOneVsAll.m

?????文件????????137??2016-03-16?17:08??bp\sigmoid.m

?????文件???????1567??2016-03-16?17:08??bp\submit.m

?????文件????????262??2016-03-16?17:08??bp\token.mat

?????目錄??????????0??2016-03-16?19:36??bp\lib\jsonlab

?????目錄??????????0??2016-03-16?19:36??bp\lib

?????目錄??????????0??2016-03-16?19:36??bp

-----------?---------??----------?-----??----

............此處省略2個文件信息