if isempty(a) disp('a is empty') else disp('a is not empty') end 在这个例子中,变量a被赋值为空矩阵。使用isempty函数检查a是否为空,如果a为空,则输出'a is empty',反之输出'a is not empty'。 除了使用if语句和isempty函数外,还有其他的非空判断方法,比如使用exist函数。exist函数可以用来检测一...
在MATLAB中,empty是一个函数,用于检查数组是否为空。如果数组是空的,则empty函数返回逻辑值true,否则返回false。 基本用法 假设你有一个变量A,你可以使用empty(A)来检查A是否为空。 matlab A = []; if empty(A) disp('A is empty.') else disp('A is not empty.') end 在这个例子中,因为A是一个空...
方法/步骤 1 if ~isempty(get(groot,'CurrentFigure')) %如果现有的窗口没有图disp('There are existing figures.') %显示There are existing figureselse disp('There are no existing figures.') %显示There are no ...
if (~isempty(F_Zero)) %There is Zeros (not empty) W(:,F_Zero) = []; % Remove the columns of W HT(F_Zero,:) = []; % Remove the rows of HT W_bar = W./sqrt(sum(abs(W.^2),1)); D_Matrix = HT*W_bar; %Diagonal Matrix D_Sq...
if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT ...
input,isempty,break,disp,num2str 公式: C = (F - 32) * \frac{5}{9} 答案代码: 主代码块: while 1 F = input ('Temperature in F = '); if isempty(F) break; else transform(F);%(此处谢谢 @Humble 提示修正) disp(['Temperature in C = ',num2str(transform(F))]); end end 功能...
% handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. ifispc set(hObject,'BackgroundColor','white'); else set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor')...
'of %s is %d'],vname,value) 在多行上分解字符向量并将这些行串联在一起: S = ['If three or more periods occur before the '... 'end of a line, then the rest of that line is ' ... 'ignored and MATLAB continues to the next line'] ...
if nargout[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});elsegui_mainfcn(gui_State, varargin{:});end%End initialization code - DO NOT EDIT %--- Executes just before txrh is made visible.function txrh_Ope...
classdefHistogramAccumulator<handlepropertiesHistogramRangeendmethodsfunctionobj=HistogramAccumulator()obj.Range=[];obj.Histogram=[];endfunctionaddToHistogram(obj,new_data)ifisempty(obj.Histogram)obj.Range=double(0:intmax(class(new_data)));obj.Histogram=hist(double(new_data(:)),obj.Range);else...