change two variable in the name in a loop using... Learn more about eval with variable, evil eval
I`m trying to write a code that will change the incremented value, delta, in half until a condition is met. The condition is a relative error. I know that I need to include a while loop until this error is met. Is there a way that can I redefine the value of delta in a loop?
1Matlab中的‘variable '' appears to change size on every loop iteration’问题Matlab中如果在循环中有A=dblkdiag(A,B)命令,并不会提示‘variable 'A' appears to change size on every loop iteration’。但如果有命令A=horzcat(A,B),则会有‘variable 'A' appears to change size on every loop iterat...
horzcat是一个内置函数,在MATLAB中已经进行了编译,使用A=horzcat(A,B)和A=[A,B]的效果是一样的。由于MATLAB内置函数已知其行为,会在A改变大小时发出警告。而blkdiag是一个M文件函数,你可以通过输入type blkdiag查看其源代码。与你自己编写的M文件相同,blkdiag是在运行时逐条执行内部命令,而非预先...
因为horzcat是一个built-in函数,也就是在matlab内部已经编译好的函数 实际上用 A=horzcat(A,B)函数和使用 A=[A,B]是一样的 对应这些已经编译好的函数,matlab本来就知道它的作用,知道A会改变size 所以作为善意的提醒,系统会发出警告 而blkdiag是一个m文件,函数 你可以输入 type blkdiag可以看到...
I have variable with name x with varying size of some 10000*2. 2 columns are fix, row value changing. I am getting that variable inside the for loop. How should I autosave variable inside loop ? Autonaming for every loop condition will be useful. ...
1)inputname :Variable name of function input(函数输入的变量名) 2)mfilename:File name of currently running function(当前运行函数的文件名) 3)nargin:Number of function input arguments(函数输入参数数目) 4)nargout:Number of function output arguments(函数输出参数数目) 5)varargin:Variable length input arg...
上面所有函数都可以用“help funcName”或“doc funcName”命令查看帮助,参考Matlab R2012a帮助文档“MATLAB/Functions”。 当前文件夹(Current Folder)和搜索路径(Search Path): Matlab之所以强大,很重要的原因是它实现了很多数学算法,也就是有一个庞大的函数库。和其他编程语言一样,这些函数以实现文件或源文件形式存...
这个只是warning吧?应该可以不管它,只不过不管的话速度会慢一点,因为每循环一次,matlab都要向电脑要一次新的内存。要解决的话,如果你预先知道那个变量(应该是矩阵或者向量吧)的大小,就在前面初始化一下,比如写 A=zeros(m,n);就可以一次要够内存。
So, I made a loop like this. "i=4; while i<37 Alq_i_t.Properties.VariableNames{1} = 'mz'; i=i+1; end " I run this script and there was no error. However, the variable names were not changed at all. Can anyone let me know why? Thanks in advance. 1 Comment Step...