Magnitude, row and column in a Matrix

4 visualizaciones (últimos 30 días)
Ricardo Gutierrez
Ricardo Gutierrez el 22 de En. de 2020
Comentada: Ricardo Gutierrez el 23 de En. de 2020
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

Respuesta aceptada

Star Strider
Star Strider el 22 de En. de 2020
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 comentarios
Ricardo Gutierrez
Ricardo Gutierrez el 23 de En. de 2020
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 el 23 de En. de 2020
It actually shows everything you want it to show.

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Más respuestas (1)

Walter Roberson
Walter Roberson el 22 de En. de 2020
Use the two output form of min(). The second output will be the appropriate row numbers.
  3 comentarios
Walter Roberson
Walter Roberson el 23 de En. de 2020
The column number is 1:number of columns
Ricardo Gutierrez
Ricardo Gutierrez el 23 de En. de 2020
Thanks

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