qq1028850792的专栏

（1）【问题描述—新建函数问题】??? Attempt to execute SCRIPT mydelta as a function.    【问题分析】 mydelta是个脚本文件（直接新建或者ctl+N就是新建的脚本文件），不是函数文件（通过菜单的File-new-function创建），所以不能“h1=1/4*myDelta(0)+1/2*myDelta(1)+1/4*myDelta(

报错信息：??? Attempt to reference field of non-structure array 'mybutn'.问题分析:首先，直接运行.fig文件不会执行m文件中的OpeningFcn和CreateFcn。OpeningFcn函数中有两句至关重要：% Choose default command line output for **handles.ou

例子1：hold ontitle('Network Link Usage','FontSize',14);xlabel('each individual node','FontSize',12);%xNameylabel('percentage of the total available to each node(%)','FontSize',12); %yNamex

问题描述：D:\PROGRA~1\MATLAB\R2010A\BIN\MEX.PL: Error: No compiler options file could be found to compile source code. Please run "mex -setup" to rectify.  ??? Error using ==> mex at 222 Unable to comple

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%【double与im2double】   double只是将参数转换为double；而im2double是将图像数据double转换后，做了归一化处理

把矩阵变成向量K>> data=[1 2;2 3] data =     1     2     2     3K>> data=data(:)data =     1     2     2     3K>> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

【cd函数】   函数功能:切换到指定目录【fullfile函数】   利用文件各部分信息创建[1]合成完整文件名。   用法：   fullfile('dir1', 'dir2', ..., 'filename')   f = fullfile('dir1', 'dir2', ..., 'filename')   解释：若文件'100.hea' 的路径为'D:\mat

1.imagesc(A) 将矩阵A中的元素数值按大小转化为不同颜色，并在坐标轴对应位置处以这种颜色染色image scaled2.解释：gray的colormap是一个64x3的矩阵，从0到1，步长为64

matlab错误提示：Warning: Variable 'a' cannot be saved to a MAT-file whose versionis older than 7.3.To save this variable, use the -v7.3 switch.Skipping...解决办法：打开matlab，file/pref