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Ruby/NArray ver 0.5.9p5 (2008-05-28) by Masahiro TANAKA
$B%/%i%9%a%=%C%I(B:
NArray.new(typecode, size, ...) $BG[Ns$r@8@.$9$k!#MWAG$O(B0$B$G=i4|2=!#(B
NArray.byte(size,...) 1 byte unsigned integer
NArray.sint(size,...) 2 byte signed integer
NArray.int(size,...) 4 byte signed integer
NArray.sfloat(size,...) single precision float
NArray.float(size,...) double precision float
NArray.scomplex(size,...) single precision complex
NArray.complex(size,...) double precision complex
NArray.object(size,...) Ruby object
$B0J>eMWAG$O(B0$B$^$?$O(Bnil$B$G=i4|2=!#(B
NArray.to_na(array) NArray$B$KJQ49(B
NArray.to_na(string,type[,size,..])
NArray[...]
NArray[1,5,10.0] #=> NArray.float(3):[1.0, 5.0, 10.0]
NArray[1..10] #=> NArray.int(10):[1,2,3,4,5,6,7,8,9,10]
$B%/%i%9JQ?t(B:
CLASS_DIMENSION $B%G!<%?$H$7$F07$o$l$k<!85!#(B
NArray$B$O(B0$B!#(BNVector$B$O(B1$B!#(BNMatrix$B$O(B2$B!#(B
$BG[Ns>pJs;2>H(B
self.dim $B<!85(B($B%$%s%G%C%/%9$N?t(B)$B$rJV$9!#(B
self.rank $B<!85(B($B%$%s%G%C%/%9$N?t(B)$B$rJV$9!#(B
self.shape $B<!85$4$H$N%5%$%:$rJV$9!#(B
self.total $BA4MWAG?t$rJV$9!#(B
$B%$%s%G%C%/%9;2>H(B
self[ dim0, dim1, ... ]
-- $B%$%s%G%C%/%90z?t$K;XDj$G$-$k$b$N(B: $B?tCM!"HO0O!"G[Ns!"(Btrue, false
-- $B%$%s%G%C%/%9$N=g=x(B: FORTRAN $B7?(B
-- $BE:;z0z?t$,(B1$B$D$N>l9g!"B?<!85G[Ns$O(Bflatten$B$5$l$?(B1$B<!85G[Ns$H$_$J$5$l$k!#(B
$BNc(B: a $B$,(B 3x3 $BG[Ns$N$H$-!"(Ba[3] $B$O(B a[0,1] $B$NMWAG$r;X$9!#(B
a[ 1, 2, -1 ] $BMWAG$N<h$j=P$7!#Ii?t$O:G8e$+$i?t$($k(B(-1$B$,:G8e(B)
$BMWAG;XDj$N<!85$O=LLs$5$l$k!#(B
a[ 0..3, 4..1 ] $BHO0O<h$j=P$7!#HO0O$N:G8e$,:G=i$h$jA0$J$i$P5U=g$K$J$k!#(B
a[ [1,4,2] ] $B%$%s%G%C%/%9G[Ns!#MWAG$,(B[a[1],a[4],a[2]]$B$N(BNArray$B$,JV$k!#(B
a[] a.dup $B$HF1$8!#(B
a[ 0, true ] a[0, 0..-1] $B$HF1$8!#(B
a[ 0, false ] a$B$,(B3$B<!85$N$H$-!"(Ba[0,true,true] $B$HF1$8!#(B
$B>JN,$5$l$?<!85$9$Y$F$K(Btrue$B$r;XDj$7$?$N$HF1$8!#(B
a[ mask ] $B%^%9%-%s%0(B. mask $B$OD9$5$,(B a $B$HEy$7$$(B byte $B7?(B
NArray. mask $B$N3FMWAG$NCM$K1~$8$F!"(Ba $B$N$=$l$>(B
$B$l$OMn$5$l$k(B(0$B$N>l9g(B)$B$+!"J];}$5$l$k(B(0$B0J30$N>l9g(B)$B!#(B
$BNc(B:
a=NArray.float(2,2).indgen!
p a[ a.lt 3 ]
--> [ 0.0, 1.0, 2.0 ]
(a.lt 3 $B$O(B byte $B7?(B NArray $B$rJV$9(B)
($BF1$8$3$H$O(B a[ (a.lt 3).where ] $B$G$b=PMh$k(B)
-- self.slice(...) self[...] $B$HF1$8$@$,!"D9$5$,#1$K$J$C$?<!85$rMn(B
$B$5$:(B(self[]$B$OMn$9(B)$B!"$b$H$N%i%s%/$rJ]$D!#C"$7!"(B
1$B<!85%$%s%G%C%/%9IU$1$H%^%9%-%s%0$ONc30(B([]$B$HF1(B
$B$8(B)$B!#(B
$B%$%s%G%C%/%9BeF~!#(B-- $B<h=P$7$H$[$\F1$8%k!<%k!#(B
a[ 1, 2, 3 ] = 1
a[ 0..3, 1..4, 2..5 ] = 2
a[ [1,3,2,4], true ] = 3
a[] = 4 a.fill!(4) $B$HF1$8!#(B
a[0..2] = b[1..5] --> $BMWAG?t$,0[$J$k$N$G%(%i!<!#(B
a[1,2] = b[0..2,1..3] [1,2]$B$r;OE@$H$7$FBeF~!#(B
a[0..2,0..3] = b[0..2,1] $B7+$jJV$7BeF~!#(B
( a[0,0]=b[0,1],..,a[0,3]=b[0,1] )
$BCM$N%;%C%H!#(B
self.indgen!([start[,step]]) start$B$+$i(Bstep$B$E$DA}2C$7$?CM$r%;%C%H!#(B
self.fill!(value) $B$9$Y$F$NMWAG$K(Bvalue$B$r%;%C%H!#(B
self.random!(max) 0<=x<max $B$N0lMM$J%i%s%@%`CM$r@8@.!#(B
using MT19337
self.randomn $BJ?6Q(B0$B!"J,;6(B1$B$N@55,J,I[$N%i%s%@%`CM$r@8@.!#(B
(Box-Muller)
NArray.srand([seed]) $BMp?t$N%7!<%I$r@_Dj!#(B
$B>JN,;~$O;~9o$+$i<+F0@8@.!#(B
$B1i;;(B: $BMWAG$4$H$K$*$3$J$&!#(B
a = NArray.float(3,3).indgen
b = NArray.float(3,3).fill(10)
c = a*b # --> NArray.float(3,3)
a = NArray.float(3,1).indgen
b = NArray.float(1,3).fill(10)
c = a*b # --> NArray.float(3,3) -- size=1$B$N<!85$O3HD%$9$k!#(B
$B;;=Q1i;;;R(B
-self
self + other
self - other
self * other
self / other
self % other
self ** other
self.abs
self.add! other
self.sbt! other
self.mul! other
self.div! other
self.mod! other
self.mul_add(other,dim,...) (self * other).sum(dim,...)$B$H$[$\F1$8!#(B
$B$?$@$7ESCf$GG[Ns$r:n$i$J$$!#(B
$B%S%C%H1i;;;R(B($B@0?t$N$_2DG=(B)
~self
self & other
self | other
self ^ other
$BHf3S(B
-- $BMWAG$4$H$KCM$rHf3S$7!"7k2L$r(BBYTE$B7?(B NArray$B$rJV$9!#(B
true/false$B$G$J$$$3$H$KCm0U!#(B
self.eq other ( ver 0.5.4 $B0J9_!"(B== $B1i;;;R$OGQ;_$7$^$7$?!#(B)
self.ne other
self.gt other
self > other
self.ge other
self >= other
self.lt other
self < other
self.le other
self <= other
self.and other $BMWAG$4$H$N>r7oHf3S!#(B
self.or other
self.xor other
self.not other
self.all? $BMWAG$,$9$Y$F??$J$i$P??!#(B
self.any? $BMWAG$N$I$l$+$,??$J$i$P??!#(B
self.none? $BMWAG$N$I$l$+$,??$J$i$P??!#(B
self.where $BMWAG$,??$N%$%s%G%C%/%9G[Ns$rJV$9!#(B
self.where2 $BMWAG$,??$H56$N%$%s%G%C%/%9G[Ns$r4^$`(B(Ruby)$BG[Ns$rJV$9!#(B
$BNc(B: idx_t,idx_f = (a>12).where2
$BE}7W(B
self.sum(dim,..) $B;XDj$7$?<!85$NOB!#(B
self.mean(dim,..) $B;XDj$7$?<!85$NJ?6Q!#(B
self.stddev(dim,..) $B;XDj$7$?<!85$NI8=`JP:9(B($BI8K\I8=`JP:9(B)$B!#(B
self.rms(dim,..) $B;XDj$7$?<!85$N(Broot mean square$B!#(B
self.rmsdev(dim,..) $B;XDj$7$?<!85$N(Broot mean square deviation$B!#(B
self.min(dim,..) $B;XDj$7$?<!85$N:G>.!#(B
self.max(dim,..) $B;XDj$7$?<!85$N:GBg!#(B
($B>JN,;~$OA4$F$N<!85!#(BRange$B;XDj2D!#(B)
self.median(dim) 0..dim$B$N<!85$NCf1{CM!#>JN,;~$O$9$Y$F$N<!85!#(B
$B%=!<%H(B
self.sort(dim) 0..dim$B$N<!85$G%=!<%H!#>JN,;~$O$9$Y$F$N<!85!#(B
self.sort_index(dim) $B%=!<%H$7$?%$%s%G%C%/%9$rJV$9!#(B
self[self.sort_index] $B$O(B self.sort $B$HF1Ey!#(B
$BE>CV(B
self.transpose( dim0, dim1, .. )
$BG[Ns$NE>CV!#(Bself$B$NBh(B(dim0)$B<!85$,?7$7$$G[Ns$NBh(B0$B<!85$K$J$k!#(B
$BIi?t$O8e$+$i$N=gHV!#(B
transpose(-1,1..-2,0) $B$G:G=i$H:G8e$rF~$l49$(!#(B
$B%$%s%G%C%/%9$NJQ99(B ($BMWAG?t$OITJQ(B)
self.reshape!(size,...)
self.shape= size,...
self.newdim!(dim,...) $B;XDj0LCV$K%5%$%:(B1$B$N<!85$rA^F~$9$k!#(B
$B%G!<%?$N;2>H(B
self.refer self$B$N%G!<%?$r;2>H$9$kJL$N%*%V%8%'%/%H$r:n@.!#(B
self.reshape(size,...) self.refer.reshape! $B$HF1MM!#(B
self.newdim(dim,...) self.refer.newdim! $B$HF1MM!#(B
$B7?JQ49(B
self.floor self$B$h$j>.$5$$:GBg$N@0?t$rJV$9!#(B
self.ceil self$B$h$jBg$-$$:G>.$N@0?t$rJV$9!#(B
self.round self$B$K$b$C$H$b6a$$@0?t$rJV$9!#(B
self.to_f $BCM$rIbF0>.?tE@?t$KJQ49$9$k!#(B
self.to_i $BCM$r@0?t$KJQ49$9$k!#(B
self.to_a $BCM$r(BRuby$B$NG[Ns$KJQ49$9$k!#(B
self.to_s $B%P%$%J%j%G!<%?$r$=$N$^$^(BRuby$B$NJ8;zNs%G!<%?$KJQ49$9$k!#(B
self.to_string $B3FMWAG$rJ8;zNs$KJQ49$9$k!#(B
$B%$%F%l!<%?(B
self.each {|i| ...}
self.collect {|i| ...}
self.collect! {|i| ...}
$B%P%$%H%9%o%C%W(B
self.swap_byte $B%P%$%H%9%o%C%W(B
self.hton $B%M%C%H%o!<%/%P%$%H%*!<%@!<$KJQ49(B
self.ntoh
self.htov VAX$B%P%$%H%*!<%@!<$KJQ49(B
self.vtoh
Boolean / $B%^%9%/4X78(B
self.count_false $BCM(B == 0 $B$NMWAG?t(B (byte, sint, int $B$N$_(B)
self.count_true $BCM(B == 1 $B$NMWAG?t(B (byte, sint, int $B$N$_(B)
self.mask( mask ) self[ mask ] $B$HF1$8$@$+%^%9%-%s%0@lMQ(B.
[] $B$H0c$$(B int, sint $B$N%^%9%/$b;H$($k(B.
$BJ#AG?t(B
self.real
self.imag
self.conj
self.conj!
self.angle atan2(self.imag, self.real)
self.imag= other $B5u?tItJ,$K(Bother$B$r%;%C%H!#(B
self.im $B5u?tG\!#(B
NMath $B%b%8%e!<%k(B
sqrt(x)
exp(x)
log(x)
log10(x)
log2(x)
atan2(x,y)
sin,cos,tan
sinh,cosh,tanh
asin,acos,atan
asinh,acosh,atanh
csc,sec,cot
csch,sech,coth
acsc,asec,acot
acsch,asech,acoth
covariance
FFTW $B%b%8%e!<%k(B (fftw-2.1.3$B$r(Bshared lib$B$G%3%s%Q%$%k$7$?$b$N$G3NG'(B)
($BJL%b%8%e!<%k(B)
fftw(x,[1|-1])
convol(a,b) FFTW$B$rMQ$$$?>v$_9~$_!#(B
NMatrix
NArray$B$N%5%V%/%i%9!#:G=i$N(B2$B<!85$r(BMatrix$B$H$7$FMQ$$$k!#(B
$B;D$j$N<!85$OB?<!85G[Ns$H$7$F07$o$l$k!#(B
$B<!85$N=g=x$O!"?t3X$G$NI=5-$H$O5U(B: a_ij => a[j,i]
$B%a%=%C%I(B:
+,- $BAj<j$,(B NMatrix $B$N$H$-$K1i;;2D!#(B
* $BAj<j$,(B NMatrix $B$^$?$O(B NVector $B$N$H$-$O(B Matrix$B@Q!#(B
$BAj<j$,(B Numeric $B$^$?$O(B NArray $B$N$H$-$O(B Scalar$B@Q!#(B
$BNc(B: NMatrix[[1,2],[3,4]] * [1,10]
== NMatrix[ [[1,2],[3,4]], [[10,20],[30,40]] ]
/ $BAj<j$,(B Numeric $B$^$?$O(B NArray $B$N$H$-$O(BScalar$B=|;;!#(B
$BAj<j$,(B square NMatrix $B$N$H$-$O(BLU$B$K$h$j@~7AJ}Dx<0$r2r$/!#(B
a/b == b.lu.solve(a)
transpose $B0z?t$r>JN,$7$?>l9g$O!":G=i$N(BMatrix$B<!85$r8r49!#(B
diagonal(other)
diagonal!(other) $BBP3QMWAG$KCM$r%;%C%H!#0z?t>JN,;~$O(B1$B$r%;%C%H!#(B
I $BBP3QMWAG$KCM$K(B1$B$r%;%C%H!#(B
inverse $B5U9TNs(B
lu LU$BJ,2r$r7W;;!#(BNMatrixLU $B%/%i%9$N%$%s%9%?%s%9$rJV$9!#(B
NVector
NArray$B$N%5%V%/%i%9!#:G=i$N(B1$B<!85$r(BVector$B$H$7$FMQ$$$k!#(B
$B;D$j$N<!85$OB?<!85G[Ns$H$7$F07$o$l$k!#(B
$B%a%=%C%I(B:
+,- $BAj<j$,(B NVector $B$N$H$-$K1i;;2D!#(B
* $BAj<j$,(B NMatrix $B$N$H$-$O(B Matrix$B@Q!#(B
$BAj<j$,(B NVector $B$N$H$-$O(B $BFb@Q!#(B
$BAj<j$,(B Numeric $B$^$?$O(B NArray $B$N$H$-$O(B Scalar$B@Q!#(B
/ $BAj<j$,(B Numeric $B$^$?$O(B NArray $B$N$H$-$O(B Scalar$B=|;;!#(B
$BAj<j$,(B square NMatrix $B$N$H$-$O(BLU$B$K$h$j@~7AJ}Dx<0$r2r$/!#(B
v/m == m.lu.solve(v)
NMatrixLU
NMatrix#lu $B%a%=%C%I$K$h$j:n$i$l$k!#(B
LU (NMatrix) $B$H(B pivot (NVector) $B$r4^$`!#(B
$B%a%=%C%I(B:
solve(other) LU$BJ,2r$N7k2L$r;H$C$F(B other $B$r2r$/!#(B
other $B$O(B NMatrix $B$^$?$O(B NVector $B$N%$%s%9%?%s%9!#(B
|
