# How to calculate mean and standard deviation for loops?

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Sumit Saha el 11 de Jul. de 2021
Comentada: Sumit Saha el 11 de Jul. de 2021
story_Acc_FN_UL0_S1_5 = randn(1,10);
story_Acc_FN_UL0_S2_5 = randn(1,10);
story_Acc_FN_UL0_S3_5 = randn(1,10);
story_Acc_FN_UL0_S4_5 = randn(1,10);
story_Acc_FN_UL0_S5_5 = randn(1,10);
for uu = 1:10
story_Acc_FN_UL0_R_rup_5(1,uu) = mean(story_Acc_FN_UL0_S1_5(1,uu),story_Acc_FN_UL0_S2_5(1,uu),story_Acc_FN_UL0_S3_5(1,uu),story_Acc_FN_UL0_S4_5(1,uu),story_Acc_FN_UL0_S5_5(1,uu));
std_dvt(1,uu) = std(story_Acc_FN_UL0_S1_5(1,uu),story_Acc_FN_UL0_S2_5(1,uu),story_Acc_FN_UL0_S3_5(1,uu),story_Acc_FN_UL0_S4_5(1,uu),story_Acc_FN_UL0_S5_5(1,uu));
end
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ANKUR KUMAR el 11 de Jul. de 2021
You don't need to use loop for that. You can use cat command to concatenate, and then use mean and std functions to the matrix itself.
story_Acc_FN_UL0_S1_5 = randn(1,10);
story_Acc_FN_UL0_S2_5 = randn(1,10);
story_Acc_FN_UL0_S3_5 = randn(1,10);
story_Acc_FN_UL0_S4_5 = randn(1,10);
story_Acc_FN_UL0_S5_5 = randn(1,10);
matrix=cat(1,story_Acc_FN_UL0_S1_5,story_Acc_FN_UL0_S2_5, story_Acc_FN_UL0_S3_5, story_Acc_FN_UL0_S4_5, story_Acc_FN_UL0_S5_5)
matrix = 5×10
0.5803 0.2545 1.3201 1.1169 1.1713 0.6641 0.6268 0.1792 0.5207 -0.8742 0.2123 -1.1177 -0.7340 -0.4116 1.6859 0.4254 -0.0838 -1.3029 0.2514 -0.0004 -0.1874 -1.3762 0.4546 -1.2224 0.4418 1.2452 0.7849 2.4942 -0.3359 -0.7775 -0.5222 2.1919 -0.1692 0.7816 0.0996 0.9557 -0.5402 0.5236 0.8086 -0.5950 1.0547 0.4665 -0.0449 0.7405 -0.2555 -1.1399 0.4181 -0.7332 -2.2922 1.3358
meanvalue=mean(matrix)
meanvalue = 1×10
0.2276 0.0838 0.1653 0.2010 0.6287 0.4301 0.2412 0.2322 -0.2095 -0.1823
stdev=std(matrix)
stdev = 1×10
0.6211 1.4313 0.7717 0.9834 0.7920 0.9301 0.5458 1.4571 1.2385 0.9139
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Sumit Saha el 11 de Jul. de 2021
thanks @ANKUR KUMAR

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