how to define a new variable in a table

2020 6 17
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更新时间：2020 6 17
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I have a table
date temperature
1/1/2020 10
1/2/2020 20
1/3/2020 30
I want to define a variable 'even' that takes a value of 1 if the day is the even number and 0 if the day is the odd number. That is,
date temperature even
1/1/2020 10 0
1/2/2020 20 1
1/3/2020 30 0
Please advise.

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madhan ravi
madhan ravi 2020-6-17

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TablE.even = [0; 1; 0]

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alpedhuez
alpedhuez 2020-6-17
编辑：alpedhuez 2020-6-17
The above one is an example. I want to understand how to write a if else to define a varaible in a table like, assuming test is the table name,
if day(test.date) == even
test.even == 1
else
test.even ==0
end
madhan ravi
madhan ravi 2020-6-17
DO NOT USE table as a variable name.
TablE.even = day(TablE.date) == evem
alpedhuez
alpedhuez 2020-6-17
Thank you. I have corrected errors. Still, I want to understand, in a more general example, how to define a new variable in a table using if else. Thank you.
madhan ravi
madhan ravi 2020-6-17
TablE.even = false(size(TablE.date));
for k = 1:numel(TablE.date)
TablE.even(k) = day(TablE.date(k)) == evem;
end
alpedhuez
alpedhuez 2020-6-17
Thank you. What is the difference between size(TablE.date) and numel(TablE.date)?

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