calculate std and mean for multiple variables automated

8 次查看（过去 30 天）
Zeynab Mousavikhamene
回答： Catalytic 2019-9-5
I have many variables that need to calculate std and mean for them. Is there any structure (other than defining a function) that can do this calculation for all determined variables instead of writing mean() and std() for each individual variable?

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回答（1 个）

Catalytic
Catalytic 2019-9-5
Observe -
>> input=rand(10,5)
input =
0.8147 0.1576 0.6557 0.7060 0.4387
0.9058 0.9706 0.0357 0.0318 0.3816
0.1270 0.9572 0.8491 0.2769 0.7655
0.9134 0.4854 0.9340 0.0462 0.7952
0.6324 0.8003 0.6787 0.0971 0.1869
0.0975 0.1419 0.7577 0.8235 0.4898
0.2785 0.4218 0.7431 0.6948 0.4456
0.5469 0.9157 0.3922 0.3171 0.6463
0.9575 0.7922 0.6555 0.9502 0.7094
0.9649 0.9595 0.1712 0.0344 0.7547
>> std(input)
ans =
0.3459 0.3308 0.2935 0.3607 0.2025

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