Unknown Error Message from using interp1

Using this table how do I resolve the error message below

Answer 1

[Walter Roberson]

if year < 1990 | year > 2018 | mod(year,2) == 1
    disp("This is not an even year from 1990 to 2018");
else
    male_vote = interp1(YourTable.Year, YourTable.Male, year);
    female_vote = interp1(YourTable.Year, YourTable.Female, year);
    go = 0;
end

But I would suggest

if year < 1990 | year > 2018 | mod(year,2) == 1
    disp("This is not an even year from 1990 to 2018");
else
   mask = YourTable.Year == year;
   male_vote = YourTable(mask).Male;
   female_vote = YourTable(mask).Female;
   go = 0;
end