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# quart

computation of quartiles

### Syntax

s=quart(x) s=quart(x,'r') or m=quart(x,1) s=quart(x,'c') or m=quart(x,2)

### Arguments

- x
real or complex vector or matrix

### Description

For a vector or a matrix x, [q]=quart(x,y) returns in the vector q the quartiles of x. [q]=quart(x,'r') (or, equivalently, [q]=quart(x,1)) are the rowwise percentiles. It returns in each column of the matrix q the quartiles of data in the corresponding column of x.

[q]=quart(x,'c') (or, equivalently, [q]=quart(x,2)) are the columnwise quartiles. It returns in each row of the matrix q the quartiles of data in the corresponding row of x.

### Examples

x=[6 7 0 7 10 4 2 2 7 1; 6 0 5 5 5 2 0 6 8 10; 8 6 4 3 5 9 8 3 4 7; 1 3 2 7 6 1 1 4 8 2; 6 3 5 1 6 5 9 9 5 5; 1 6 4 4 5 4 0 8 1 8; 7 1 3 7 8 0 2 8 10 8; 3 6 1 9 8 5 5 3 2 1; 5 7 6 2 10 8 7 4 0 8; 10 3 3 4 8 6 9 4 8 3] q=quart(x) q=quart(x,'r') q=quart(x,'c')

### Bibliography

Wonacott, T.H. & Wonacott, R.J.; Introductory Statistics, fifth edition, J.Wiley & Sons, 1990.

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