是否可以在MATLAB中的表达式上应用冒号运算符? [英] Is it possible to apply colon operator on an expression in MATLAB?

问题描述

如果可以在表达式上使用冒号运算符，则非常方便.据我所知，这是不可能的.例如，当我要计算两个矩阵之间的差异时，必须两行进行计算.

It's very convenient if it was possible to use colon operator on a expression. Well to my knowledge, it's not possible. For example when I want to calculate the differences between two matrices, I have to do it in two lines.

diff = (a - b);
err = sum(abs(diff(:)));

代替

diff = sum(abs((a-b)(:)));

反正周围吗?

推荐答案

您可以使用匿名帮助程序功能来避免语法限制. EG

You can get around syntax limitations with anonymous helper functions. EG

oneD = @(x)x(:);
diff = sum(abs(oneD(a-b))));

不过还是需要两行.

这篇关于是否可以在MATLAB中的表达式上应用冒号运算符?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！