how to create wind direction categoricals

3 次查看（过去 30 天）
Douglas Leaffer
Douglas Leaffer 2023-3-13
评论： Walter Roberson 2023-3-13
Hello. I m trying to create categoricals from wind directions (0 - 359 degrees) for 4 values: 1 = airport; 2 = bus_sta; 3= road; 4 = other
The compass degree ranges, resectively, are below, in a for loop, which did not work. I want to store the vlues in a vector of length specifed:
for i = 1:length(T1.classification)
if (45<=RMET2.Deg)&(RMET2.Deg<=65)
impact = impact(i);
elseif (260<=RMET2.Deg)&(RMET2.Deg<=280)
impact = impact(i);
elseif (80<=RMET2.Deg)&(RMET2.Deg<=100)
impact = impact(i);
else impact = impact;
end
end
  5 个评论
显示 3更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2023-3-13
Ran in:
RMET2.Deg = (0:15:360).';
dirs = discretize(RMET2.Deg, [0 45 65 80 100 260 280 360], {'other', 'airport', 'other', 'bus_sta', 'other', 'road', 'other'});
disp(table(RMET2.Deg, dirs))
Var1 Var2 ____ ___________ 0 {'other' } 15 {'other' } 30 {'other' } 45 {'airport'} 60 {'airport'} 75 {'other' } 90 {'bus_sta'} 105 {'other' } 120 {'other' } 135 {'other' } 150 {'other' } 165 {'other' } 180 {'other' } 195 {'other' } 210 {'other' } 225 {'other' } 240 {'other' } 255 {'other' } 270 {'road' } 285 {'other' } 300 {'other' } 315 {'other' } 330 {'other' } 345 {'other' } 360 {'other' }
  3 个评论
显示 1更早的评论
Douglas Leaffer
Douglas Leaffer 2023-3-13
This worked for me:
catnames = ["other", "airport", "other", "bus_sta", "other", "road", "other"];
ImpactWind = discretize(RMET2.Deg,[0 45 65 80 100 260 280 360],'categorical',catnames);

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Categorical Arrays 的更多信息

标签

产品


版本

R2022a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by