# Vector average calculation Calculate the average value in a vector. ## Topics ### Calculating the mean value of a vector [`static func mean(U) -> Float`](/documentation/Accelerate/vDSP/mean(_:)-1lwak) Returns the mean value of a single-precision vector. [`static func mean(U) -> Double`](/documentation/Accelerate/vDSP/mean(_:)-60g3p) Returns the mean value of a double-precision vector. [`extern void vDSP_meanv(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_meanv) Calculates the mean value of a single-precision vector. [`extern void vDSP_meanvD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_meanvD) Calculates the mean value of a double-precision vector. ### Calculating the mean of magnitudes of a vector [`static func meanMagnitude(U) -> Float`](/documentation/Accelerate/vDSP/meanMagnitude(_:)-3fica) Returns the mean of magnitudes of a single-precision vector. [`static func meanMagnitude(U) -> Double`](/documentation/Accelerate/vDSP/meanMagnitude(_:)-664b7) Returns the mean of magnitudes of a double-precision vector. [`extern void vDSP_meamgv(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_meamgv) Calculates the mean of magnitudes of a single-precision vector. [`extern void vDSP_meamgvD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_meamgvD) Calculates the mean of magnitudes of a double-precision vector. ### Calculating the mean of squares of a vector [`static func meanSquare(U) -> Float`](/documentation/Accelerate/vDSP/meanSquare(_:)-751e5) Returns the mean of squares of a single-precision vector. [`static func meanSquare(U) -> Double`](/documentation/Accelerate/vDSP/meanSquare(_:)-1gh6k) Returns the mean of squares of a double-precision vector. [`extern void vDSP_measqv(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_measqv) Calculates the mean of squares of a single-precision vector. [`extern void vDSP_measqvD(const double *__A, vDSP_Stride __I, double *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_measqvD) Calculates the mean of squares of a double-precision vector. [`extern void vDSP_mvessq(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_mvessq) Calculates the mean of signed squares of a single-precision vector. [`extern void vDSP_mvessqD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_mvessqD) Calculates the mean of signed squares of a double-precision vector. ### Calculating the root mean square of a vector [`static func rootMeanSquare(U) -> Float`](/documentation/Accelerate/vDSP/rootMeanSquare(_:)-9xkkk) Returns the root mean square of a single-precision vector. [`static func rootMeanSquare(U) -> Double`](/documentation/Accelerate/vDSP/rootMeanSquare(_:)-4mwg7) Returns the root mean square of a double-precision vector. [`extern void vDSP_rmsqv(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_rmsqv) Calculates the root mean square of a single-precision vector. [`extern void vDSP_rmsqvD(const double *__A, vDSP_Stride __IA, double *__C, vDSP_Length __N);`](/documentation/Accelerate/vDSP_rmsqvD) Calculates the root mean square of a double-precision vector. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)