Magnitude, row and column in a Matrix

4 次查看(过去 30 天)
Good Morning.
I have a matrix A
A = [87.97 87.97 17.97
95.22 87.96 91.26
75.50 75.50 75.50
78.13 64.89 78.90];
What instructions should I do to get
Minimum value per column
The line and column of that value
The result would be:
magnitude 75.50 64.89 17.97
row 3 4 1
column 1 2 3
Greetings and thanks

采纳的回答

Star Strider
Star Strider 2020-1-22
Try this:
A = [87.97 87.97 17.97
95.22 87.96 91.26
75.50 75.50 75.50
78.13 64.89 78.90];
[MaxA,MaxRow] = max(A)
[MinA,MinRow] = min(A)
producing:
MaxA =
95.2200 87.9700 91.2600
MaxRow =
2 1 2
MinA =
75.5000 64.8900 17.9700
MinRow =
3 4 1
  6 个评论
Ricardo Gutierrez
Ricardo Gutierrez 2020-1-23
This is the code I have, with your suggestions.
______________________________________________
clc; clear; close all; format short;
A=[ 87.97 87.97 17.97
95.22 87.96 91.26
75.50 75.50 75.50
78.13 64.89 78.90];
[MinA,MinRow] = min(A)
[RowMin,ColMin] = find(A == min(A(:)))
__________________________________________________
This is the results show in the Command Window
______________________________________________
MinA =
75.5000 64.8900 17.9700
MinRow =
3 4 1
RowMin =
1
ColMin =
3
ColMin =
3
>>
___________________________________________
As we see it does not show me the columns.
It shows me only one
Already the minimum values and the rows are resolved, only the columns are missing.
Thanks for your help
Star Strider
Star Strider 2020-1-23
It actually shows everything you want it to show.

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更多回答(1 个)

Walter Roberson
Walter Roberson 2020-1-22
Use the two output form of min(). The second output will be the appropriate row numbers.
  3 个评论
Walter Roberson
Walter Roberson 2020-1-23
The column number is 1:number of columns

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