Find Column Number in Table
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Robot
el 7 de Oct. de 2014
Comentada: Robot
el 9 de Oct. de 2014
I would like to subset a table into columns before a certain variable and columns after that variable. Is there a way to locate a column number within a table? Is there a more clever way to do this?
load patients
BloodPressure = [Systolic Diastolic];
T = table(Gender,Age,Smoker,BloodPressure,'RowNames',LastName);
A = *findColNumber*(T, 'Age'); % Some function that will locate the column number of 'Age'.
T1 = T(:, 1:A);
T2 = T(:, A+1:end);
'patients' is a standard example data set included in R2014a. Entering the command 'load patients' should load the relevant data.
Thanks!
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Mohammad Abouali
el 8 de Oct. de 2014
Table variable have property fields
you can use that to find the column number like this
find(strcmpi(T.Properties.VariableNames,'Age'))
ans =
2
4 comentarios
Image Analyst
el 8 de Oct. de 2014
Editada: Image Analyst
el 8 de Oct. de 2014
Yeah, your T is slightly different than mine. No time now, but tomorrow I'll have to investigate why your code and mine behave differently and have slightly different T's. You'd think they should be the same even though they were gotten in different ways.
Actually I just figured it out. With my code, load() returns T as a structure not a table. So that makes sense.
Más respuestas (1)
Image Analyst
el 7 de Oct. de 2014
You don't need the column number. Just do
ages = T.Age;
3 comentarios
Image Analyst
el 8 de Oct. de 2014
Editada: Image Analyst
el 8 de Oct. de 2014
You can get the age column like this:
T = load('patients')
ageColumn = find(ismember(fieldnames(T), 'Age'))
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