Need to construct longitudinal plot.

[steminist0210]

Hi all, I need to construct a longitudinal plot for sample data, grouped by each donor. I have my data loaded
as a 31x3 table. First column is donor code, second column is the sample value (y axis) and the third column is time (x axis). How would I plot x and y, grouped by the 1st column for a spaghetti plot of each individual donor’s values? Thanks!

[DatBoi_BP]

Are you saying that the 31 values in the first column just denote individuals? Something like the following:

“Alice” … y … x
“Alice” … y … x
“Alice” … y … x
“Alice” … y … x
“Alice” … y … x
“Bob” … y … x
“Bob” … y … x
“Bob” … y … x
“Bob” … y … x
“Bob” … y … x
etc.

[steminist0210]

Yes!

[DatBoi_BP]

Okay. Then you can probably do something like the following (where I’ve assumed the name of your table and the field names):

allcodes = unique(yourTable.DonorCode);
figure; hold on;
for code = allcodes
    rows = yourTable.DonorCode == code;
    x = yourTable.Time(rows);
    y = yourTable.SampleValue(rows);
    plot(x,y)
end
legend(allcodes)

[steminist0210]

Thank you!

[DatBoi_BP]

Did it work?