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Hi, I have a data bases, I should calculed the mean of month of each years.

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Julian david ortiz umaña 2022-10-21

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回答： Vishesh 2022-10-25

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Hi, I have a data bases, I should calculed the mean of month of each years.

My error this:

Index in position 2 is invalid. Array indices must be positive integers or logical values.

thanks

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KSSV 2022-10-21

REad about retime

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Vishesh 2022-10-25

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You can use the following code for calculating mean of months of each years.

Teje2=load("Ej.2.TempTacSalto.mat");
Temsalor=flipud(Teje2.tempsalto);
anos=[1990:2019];%define vector de años
lanos=length(anos);%cantidad de años
meses=[1:12];%define vectos meses
lmeses=length(meses);%cantidad de meses
tsalm=[];%inicializa cantidad de promedios
ldat=length(Temsalor(:,4));%cantidad de datos
for j=1:length(anos)%obtiene promdeio de cada mes
    for b=1:12
     year= Temsalor(:,3)==anos(j);
     month= Temsalor(:,2)==b;
     tsalm=[tsalm mean(Temsalor(:,4).*month.*year)*length(Temsalor)/sum(month.*year )];
    end
end

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