GopherProxy

	tstddev.1 - numtools - perform numerical operations on vectors and matrices in …
	git clone git://src.adamsgaard.dk/numtools
	Log
	Files
	Refs
	README
	LICENSE
	---
	tstddev.1 (1322B)
	---
	1 .Dd $Mdocdate$
	2 .Dt STDDEV 1
	3 .Os
	4 .Sh NAME
	5 .Nm stddev
	6 .Nd returns the standard deviation for each input column
	7 .Sh SYNOPSIS
	8 .Nm
	9 .Op Fl d Ar delimstr
	10 .Op Fl n
	11 .Op Fl p Ar prec
	12 .Op Fl u
	13 .Sh DESCRIPTION
	14 .Nm
	15 returns the corrected sample standard deviation (s) for each column of
	16 standard input.
	17 Input fields must be tab-separated and each line most contain the same
	18 number of fields.
	19 The output is always in full double precision.
	20 .Pp
	21 The options are as follows:
	22 .Bl -tag -width Ds
	23 .It Fl d Ar delimstr
	24 Separate output values by
	25 .Ar delimstr .
	26 The default delimiter is tab characters.
	27 .It Fl n
	28 Do not print a newline after the final value.
	29 .It Fl p Ar prec
	30 Print the output values with
	31 .Ar prec
	32 digits of precision.
	33 By default, the output is printed with 17 digits of precision, which is
	34 full double precision on 64-bit systems.
	35 .It Fl u
	36 Return the uncorrected sample standard deviation instead.
	37 .El
	38 .Sh EXAMPLES
	39 Compute the corrected standard deviation for some input numbers:
	40 .Dl $ printf '10\en8\en10\en8\en8\en4\en' \| stddev
	41 .Dl 2.1908902300206643
	42 .Pp
	43 Same as the previous example, but return the uncorrected standard
	44 deviation:
	45 .Dl $ printf '10\en8\en10\en8\en8\en4\en' \| stddev -u
	46 .Dl 2
	47 .Sh SEE ALSO
	48 .Xr max 1 ,
	49 .Xr mean 1 ,
	50 .Xr min 1 ,
	51 .Xr stdvar 1 ,
	52 .Xr sum 1
	53 .Sh AUTHORS
	54 .An Anders Damsgaard Aq Mt [email protected]