When inputting an x value how to output a y

using this table I want to input a YEAR as the x, and want to output both the male and female as y values in the command window.

Answer 1

[Ameer Hamza]

One approach is to use interp1()

years; % all year values
male_vals; % male values
female_vals; % female values

vals = [male_vals female_vals];
mdl = @(year) interp1(years, vals, year)

You can then use mdl() as a function.

mdl(2000); % it will give values for year 2000

Another approach is to just use indexing

years; % all year values
male_vals; % male values
female_vals; % female values

vals = [male_vals female_vals];
mdl = @(year) vals(years==year, :);

You can also call it like a function as shown above.

[Ashley Megow]

How do I solve this error message?

[Ameer Hamza]

No, not like this. I used that as the name of variables. Replace these with the names of your own variables. What are the names of your variables containing the data?

[Ashley Megow]

I figured it would just be easier to send pictures of my code

[Ameer Hamza]

The elseif block will go like this

elseif (yearWant==1990)
    vals = [tbl.Male(:) tbl.Female(:)];
    valueWant = interp1(tbl.Year(:), vals, yearWant)
end