for loop to subtract row from columns

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Frederik Reese
Frederik Reese 2022-5-13
评论： Dyuman Joshi 2022-5-13
Hi, probably to easy for you....
I want to substract a value column i in row 3 in a matrix of the depending column i and get a new matrix.
Matrix is 103x371
f.e. Value column 10 row 3 subtract with column 10 4:371
The values calculatet aren't right.
I think i have to implement another loop to choose also the values in the x direction (instead [4:371])
Thanks
clc
clear all
clear workspace
load ('Punkte_Gesamt_D')
Punkte_Gesamt_D(Punkte_Gesamt_D==0)=nan
for i=1:103
Punkte_Gesamt_D_Wasserhoehe (i,:)= Punkte_Gesamt_D ([i],[4:371])-Punkte_Gesamt_D(3,i);
end
  2 个评论
Frederik Reese
Frederik Reese 2022-5-13
I only needet to change
Punkte_Gesamt_D ([i],[4:371])-Punkte_Gesamt_D(i,3)
Dyuman Joshi
Dyuman Joshi 2022-5-13
"f.e. Value column 10 row 3 subtract with column 10 4:371"
You want to do this - matrix(4:371,10)-matrix(3,10) ?

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回答（1 个）

Matt J
Matt J 2022-5-13
编辑：Matt J 2022-5-13
Punkte_Gesamt_D_Wasserhoehe([4:371],:)=...
Punkte_Gesamt_D_Wasserhoehe([4:371],:)-Punkte_Gesamt_D_Wasserhoehe(3,:);

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