search for: arrayindex

Hi all, When I called arrayIndex(20:23, dim=c(4,3,3)), it says "Error: could not find function "arrayIndex"in R". So I called ls("package:utils") to see the functions inside: [1] "?" [2] "adist" [3] "alarm" [4] "apropos" [5] "aregexec" [6]...

...es, things with small lifetimes where having a simple short name is good, and things with longer lifetimes where you want something descriptive. > > For example, naming a variable i here is perfectly fine: > > for (unsigned i = 0; i != 100; ++i) >  A[i] = 0; > > Naming it "ArrayIndex" would not make it more clear :) Good point. I actually have this in the example: 828 VehicleMaker m; // Bad (abbreviation and non-descriptive); might be 829 // OK for a local variable if its role is obvious. I'll reword the rule to match what you have in mind...

...mes where having a simple short name is good, and things with longer lifetimes where you want something descriptive. >> >> For example, naming a variable i here is perfectly fine: >> >> for (unsigned i = 0; i != 100; ++i) >>  A[i] = 0; >> >> Naming it "ArrayIndex" would not make it more clear :) > > Good point.  I actually have this in the example: > >  828   VehicleMaker m;  // Bad (abbreviation and non-descriptive); might be >  829                    // OK for a local variable if its role is obvious. > > I'll reword the rule...

...rray source to the front - if (dim != arg || i->tex.rIndirectSrc >= 0 || i->tex.sIndirectSrc >= 0) { + if (i->tex.target.isArray() || i->tex.rIndirectSrc >= 0 || i->tex.sIndirectSrc >= 0) { LValue *src = new_LValue(func, FILE_GPR); // 0xttxsaaaa Value *arrayIndex = i->tex.target.isArray() ? i->getSrc(lyr) : NULL; @@ -728,6 +729,12 @@ NVC0LoweringPass::handleTEX(TexInstruction *i) i->setSrc(0, src); } + // for nvc0, the sample id ends up being treated as an offset, so we can't + // do offset and ms at the same time. on nve0, the...

...el, bld.mkImm(i->tex.r)); + } + if (tscRel) { i->setSrc(i->tex.sIndirectSrc, NULL); + if (i->tex.s) + tscRel = bld.mkOp2v(OP_ADD, TYPE_U32, bld.getScratch(), + tscRel, bld.mkImm(i->tex.s)); + } Value *arrayIndex = i->tex.target.isArray() ? i->getSrc(lyr) : NULL; for (int s = dim; s >= 1; --s) -- 1.8.5.5

...good, and things with longer lifetimes where you want something > descriptive. > >> > >> For example, naming a variable i here is perfectly fine: > >> > >> for (unsigned i = 0; i != 100; ++i) > >> A[i] = 0; > >> > >> Naming it "ArrayIndex" would not make it more clear :) > > > > Good point. I actually have this in the example: > > > > 828 VehicleMaker m; // Bad (abbreviation and non-descriptive); might > be > > 829 // OK for a local variable if its role is > obvious....

...53o7a0a4efatcd6e0cedfe5aa0f6 at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 This is a problem how to convert vector indices to array indices. Here is a general solution utilizing the fact that matrices are stored column by column in R (this extends to arrays of any dimension): arrayIndex <- function(i, dim) { ndim <- length(dim); # number of dimension v <- cumprod(c(1,dim)); # base # Allocate return matrix j <- matrix(NA, nrow=length(i), ncol=ndim); i <- (i-1); # one-based indices for (kk in 1:ndim) j[,kk] <- (i %% v[kk+1])/v[kk]; 1 +...