tAdd min, max, mean, README, and Makefile - numtools - perform numerical operations on vectors and matrices in unix pipes
 (HTM) git clone git://src.adamsgaard.dk/numtools
 (DIR) Log
 (DIR) Files
 (DIR) Refs
 (DIR) README
 (DIR) LICENSE
       ---
 (DIR) commit 0847f2755eb2ea28d2df75f842d942a12fb90ced
 (HTM) Author: Anders Damsgaard <anders@adamsgaard.dk>
       Date:   Wed, 25 Nov 2020 14:29:01 +0100
       
       Add min, max, mean, README, and Makefile
       
       Diffstat:
         A Makefile                            |      41 +++++++++++++++++++++++++++++++
         A README                              |       3 +++
         A max                                 |      11 +++++++++++
         A mean                                |      10 ++++++++++
         A min                                 |      11 +++++++++++
       
       5 files changed, 76 insertions(+), 0 deletions(-)
       ---
 (DIR) diff --git a/Makefile b/Makefile
       t@@ -0,0 +1,41 @@
       +.POSIX:
       +
       +NAME = mathtools
       +VERSION = 0.1.0
       +
       +# paths
       +PREFIX = /usr/local
       +MANPREFIX = ${PREFIX}/man
       +DOCPREFIX = ${PREFIX}/share/doc/${NAME}
       +
       +SCRIPTS = mean
       +
       +MAN1 = ${SCRIPTS:=.1}
       +DOC = \
       +        LICENSE\
       +        README
       +
       +install: 
       +        # installing executable files and scripts.
       +        mkdir -p "${DESTDIR}${PREFIX}/bin"
       +        cp -f ${SCRIPTS} "${DESTDIR}${PREFIX}/bin"
       +        for f in ${SCRIPTS}; do chmod 755 "${DESTDIR}${PREFIX}/bin/$$f"; done
       +        # installing documentation files.
       +        mkdir -p "${DESTDIR}${DOCPREFIX}"
       +        cp -f ${DOC} "${DESTDIR}${DOCPREFIX}"
       +        for d in ${DOC}; do chmod 755 "${DESTDIR}${DOCPREFIX}/$$d"; done
       +        # installing manual pages for general commands: section 1.
       +        mkdir -p "${DESTDIR}${MANPREFIX}/man1"
       +        cp -f ${MAN1} "${DESTDIR}${MANPREFIX}/man1"
       +        for m in ${MAN1}; do chmod 644 "${DESTDIR}${MANPREFIX}/man1/$$m"; done
       +
       +uninstall:
       +        # removing executable files and scripts.
       +        for f in ${SCRIPTS}; do rm -f "${DESTDIR}${PREFIX}/bin/$$f"; done
       +        # removing example files.
       +        for d in ${DOC}; do rm -f "${DESTDIR}${DOCPREFIX}/$$d"; done
       +        -rmdir "${DESTDIR}${DOCPREFIX}"
       +        # removing manual pages.
       +        for m in ${MAN1}; do rm -f "${DESTDIR}${MANPREFIX}/man1/$$m"; done
       +
       +.PHONY: install uninstall
 (DIR) diff --git a/README b/README
       t@@ -0,0 +1,3 @@
       +Tools to perform common mathematical operations in UNIX pipes
       +
       +Author: Anders Damsgaard <anders@adamsgaard.dk>
 (DIR) diff --git a/max b/max
       t@@ -0,0 +1,11 @@
       +#!/usr/bin/awk -f
       +{
       +        for (i=0; i<NF; i++)
       +                if ($i > max[i])
       +                        max[i] = $i
       +}
       +END {
       +        for (i=0; i<NF; i++)
       +                printf("%g\t", max[i])
       +        printf("\n")
       +}
 (DIR) diff --git a/mean b/mean
       t@@ -0,0 +1,10 @@
       +#!/usr/bin/awk -f
       +{
       +        for (i=0; i<NF; i++)
       +                sum[i] += $i
       +}
       +END {
       +        for (i=0; i<NF; i++)
       +                printf("%g\t", sum[i]/NR)
       +        printf("\n")
       +}
 (DIR) diff --git a/min b/min
       t@@ -0,0 +1,11 @@
       +#!/usr/bin/awk -f
       +{
       +        for (i=0; i<NF; i++)
       +                if ($i < min[i])
       +                        min[i] = $i
       +}
       +END {
       +        for (i=0; i<NF; i++)
       +                printf("%g\t", min[i])
       +        printf("\n")
       +}