Applying a function to the values in a table

I have this function where standard_time and E are part of a table. I want to create a new column from this function as such.
T.solar_time = calc_solar_time(T.standard_time, L_st, L_loc, T.E);
function solar_time = calc_solar_time(standard_time, L_st, L_loc, E)
if standard_time == 0
solar_time = 24 * 60 + 4 * (L_st - L_loc) + E;
else
solar_time = 4 * (L_st - L_loc) + E;
end
end
The function acts as if its written like below. As in it just uses the solar_time definition which it reaches the first time.
function solar_time = calc_solar_time(standard_time, L_st, L_loc, E)
solar_time = 4 * (L_st - L_loc) + E;
end
L_st and L_loc are constants.
The table is like this.. https://www.hizliresim.com/6amb7qx

 採用された回答

Walter Roberson
Walter Roberson 2022 年 5 月 15 日

1 投票

T.solar_time = calc_solar_time(T.standard_time, L_st, L_loc, T.E);
That is passing in all entries from the table at the same time.
You have three major choices:
  • rewrite your function to use logical indexing
  • rewrite your function to loop
  • change the way you call your function to call it using arrayfun()

3 件のコメント

Cavit Ertugrul Sirt
Cavit Ertugrul Sirt 2022 年 5 月 15 日
Thnak you, I thınk I'll just use loops
Walter Roberson
Walter Roberson 2022 年 5 月 15 日
Logical indexing is what I would recommend.
Cavit Ertugrul Sirt
Cavit Ertugrul Sirt 2022 年 5 月 15 日
Thank you, I just learned about them. Makes the code look really neat.

サインインしてコメントする。

その他の回答 (0 件)

カテゴリ

ヘルプ センター および File ExchangeTrigonometry についてさらに検索

製品

リリース

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by