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928 Annexe A : Instructions et fonctions
LnReg Menu MATH/Statistics/Regressions RegLn
LnReg
liste1
,
liste2
[, [
liste3
] [,
liste4
,
liste5
]]
Ajustement logarithmique.
liste1
: liste des valeurs de
x
.
liste2
: liste des valeurs de
y
.
liste3
: liste des effectifs.
liste4
: liste des numéros de catégories.
liste5
: liste des numéros de catégories
à utiliser.
Note. Les arguments
liste1
à
liste4
doivent être
des noms de variables contenant des listes, ou
des noms de colonnes du type c1, c2, etc.
liste5
peut être une liste ou un nom de variable
contenant une liste, mais pas un nom de colonne.
En mode graphique FUNCTION :
En mode graphique FUNCTION:
{1,2,3,4,5,6,7,8}! L1 ¸ {1 2 3 ...}
{1,2,2,3,3,3,4,4}! L2 ¸ {1 2 2 ...}
LnReg L1,L2 ¸ Done
ShowStat ¸
¸
Regeq(x)"y1(x) ¸ Done
NewPlot 1,1,L1,L2 ¸ Done
¥%
Local Instruction de programmation. Voir chap. VII et chap. 31, manuel CD. Local
Lock CATALOG Verr
Lock
var1
[,
var2
, ...]
Cette instruction permet de verrouiller les
variables indiquées. Ceci les protège d'un
effacement ou d'une modification.
Note : voir l'instruction
Unlock.
{1,2,3,4}! L1 ¸ {1,2,3,4}
Lock L1 ¸ Done
DelVar L1 ¸
Error: Variable is locked or protected
log() CATALOG log()
log(
expression1
)
expression
log(
liste1
)
liste
Retourne le logarithme de base
expression2
de
l’argument.
Dans le cas d’une liste, retourne le logarithme de
base
expression2
des éléments.
La valeur par défaut de l'argument optionnel
expression2 est 10.
log(2.0)
¸ .301...
If complex format mode is
REAL:
log({ë 3,1.2,5}) ¸
Error: Non-real result
If complex format mode is RECTANGULAR:
log({ë 3,1.2,5}) ¸
{log(3)+ 1.364…
(
i .079… log(5)}
log(
matriceCarrée1
)
matriceCarrée
Retourne le logarithme de base
expression2
de
matriceCarrée1
. Ceci est
différent
du calcul du
logarithme de base
expression2
de chaque élément.
Pour des informations relatives à la méthode de
calcul, reportez-vous à
cos().
matriceCarrée1
doit être diagonalisable. Le résultat
contient toujours des nombres à virgule flottante.
En mode
RADIAN et en mode Complex
Format RECTANGULAR
:
log([1,5,3;4,2,1;6,ë2,1]) ¸
.795…+.753…øi .003…ì.647…øi
.194…ì.315…øi .462…+.270øi
ë.115…ì.904…øi .488…+.777…øi
927


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