range isn't working
显示 更早的评论
Just got the R2021b version and some of my code isn't working :(
The basic function "range" initialy offered me to calculate some wave propogation parameters, I solved this by removing the Communications Toolbox, but now it's not working at all!
Here is an example of the error:
a=[1 2 3]
>> range(a)
'range' requires one of the following:
Antenna Toolbox
Communications Toolbox
Fixed-Point Designer
Statistics and Machine Learning Toolbox
>> range(a,'all')
'range' requires one of the following:
Antenna Toolbox
Communications Toolbox
Fixed-Point Designer
Statistics and Machine Learning Toolbox
Very frustrating
采纳的回答
Chris
2021-10-30
0 个投票
Yep, I don't think it's part of base Matlab. It works as you would expect if you install the Statistics and Machine Learning Toolbox.
1 个评论
You could write your own range function and put it somewhere in your matlab path, if you don't want to install the toolbox. As a simple example, if you only need it to work with vectors:
function y = range(X)
% prevent some invalid inputs
arguments
X (:,1) {mustBeNumeric, mustBeReal}
end
y = max(X)-min(X);
end
(the full function from the toolbox is not much more complicated, but I'm not sure about the legality of posting it here)
更多回答（3 个）
If you don't need to use a dimension input:
A = [1 2 3; 4 5 6; 7 8 9];
range = @(x) max(x) - min(x);
range(A)
range(A(:))
If you want to use dimension input
range = @(x,dim) max(x,[],dim) - min(x,[],dim);
range(A,2)
Image Analyst
2021-10-30
What about the built-in bounds() function:
v = 4:99;
[minv, maxv] = bounds(v)
minv =
4
maxv =
99
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