transform exponential number to decimal

8 次查看（过去 30 天）
Alberto Acri
Alberto Acri 2023-9-11
回答： Steven Lord 2023-9-11
Hi. I have the following cell:
M1 = importdata("M1.mat");
A = compose('%d (%2d%%)', [M1(:,1), M1(:,2)]);
How can I turn exponential numbers (inside the brackets) into decimal numbers?

请先登录，再回答此问题。

采纳的回答

David Hill
David Hill 2023-9-11
Ran in:
M1 = importdata("M1.mat");
A = compose('%d (%3.2f%%)', [M1(:,1), M1(:,2)])
A = 5×1 cell array
{'81 (6.18%)' } {'82 (7.51%)' } {'83 (9.03%)' } {'84 (10.20%)'} {'85 (9.43%)' }

更多回答（1 个）

Steven Lord
Steven Lord 2023-9-11
Ran in:
Use a different format specifier. The second column of your data doesn't contain integer values, so using %d for that column is not the right thing to do. Let's try %g instead and specify that you want three significant figures. See the documentation for the formatSpec input argument to the compose function for more information about the different format specifiers you can use.
% Sample data
M1 = [81, 6.18; 82, 7.51; 83, 9.03; 84, 10.2]
M1 = 4×2
81.0000 6.1800 82.0000 7.5100 83.0000 9.0300 84.0000 10.2000
S = compose("%d (%3g%%)", M1)
S = 4×1 string array
"81 (6.18%)" "82 (7.51%)" "83 (9.03%)" "84 (10.2%)"
FYI while your result was stored in a cell array, I used double quotes in my call to the compose command to create a string array instead.

类别

在 Help Center 和 File Exchange 中查找有关 System Composer 的更多信息

标签

产品


版本

R2021b

Community Treasure Hunt

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

Start Hunting!

Translated by