NAG C Library Function Document

nag_5pt_summary_stats (g01alc)

1

Purpose

2

Specification

3

Description

4

References

5

Arguments

1:    $\mathbf{n}$ – IntegerInput

On entry: $n$, number of observations in the sample.

Constraint: $\mathbf{n}\ge 5$.

2:    $\mathbf{x}\left[\mathbf{n}\right]$ – const doubleInput

On entry: the sample observations, $x_1,x_2,\dots ,x_n$.

3:    $\mathbf{res}\left[5\right]$ – doubleOutput

On exit: res contains the five-point summary.

$\mathbf{res}\left[0\right]$

The minimum.

$\mathbf{res}\left[1\right]$

The lower hinge.

$\mathbf{res}\left[2\right]$

The median.

$\mathbf{res}\left[3\right]$

The upper hinge.

$\mathbf{res}\left[4\right]$

The maximum.

4:    $\mathbf{fail}$ – NagError *Input/Output

The NAG error argument (see Section 3.7 in How to Use the NAG Library and its Documentation).

6

Error Indicators and Warnings

NE_ALLOC_FAIL

Dynamic memory allocation failed.
See Section 2.3.1.2 in How to Use the NAG Library and its Documentation for further information.

NE_BAD_PARAM

On entry, argument $〈\mathit{\text{value}}〉$ had an illegal value.

NE_INT_ARG_LT

On entry, $\mathbf{n}=〈\mathit{\text{value}}〉$.
Constraint: $\mathbf{n}\ge 5$.

NE_INTERNAL_ERROR

An internal error has occurred in this function. Check the function call and any array sizes. If the call is correct then please contact NAG for assistance.
See Section 2.7.6 in How to Use the NAG Library and its Documentation for further information.

NE_NO_LICENCE

Your licence key may have expired or may not have been installed correctly.
See Section 2.7.5 in How to Use the NAG Library and its Documentation for further information.

7

Accuracy

8

Parallelism and Performance

9

Further Comments

10

Example

10.1

Program Text

Program Text (g01alce.c)

10.2

Program Data

Program Data (g01alce.d)

10.3

Program Results

Program Results (g01alce.r)