how to make a loop ??

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arkedia
arkedia 2014-7-9
i have a regression model with 3 variables x1 x2 x3 and all possible regression models are 2^3=8 x1 , x2,x3 x1x2, x1x3,x2x3 ,no variablesand x1x2x3 i want to apply a method called AIC to choose the correct model , SO I wan to make a loop to apply aic on all subset models ANY Help

回答(2 个)

James Tursa
James Tursa 2014-7-9
编辑:James Tursa 2014-7-9
You could use something like this for your outer loop of making variable selections:
patterns = dec2bin(0:7);
for k=1:8
usevariable = patterns(k,:)-'0';
% usevariable (1), usevariable (2), usevariable (3) are either 0 or 1
% you can then pick to use x1, x2, x3 depending on associated value of usevariable
% the pattern will cover all posibilities in the loop
end

alireza bakhshaee
alireza bakhshaee 2018-4-10
Hi all I have 28 text files. each text file has 11 columns. I have to skip first 3 lines of each text file then read them. 1-How can I find the maximum number of each column in each text files? 2-how can I find the most maximum number of the previous question in 28 files?
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James Tursa
James Tursa 2018-4-10
Please delete this Answer and instead open up a new question.

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