Displaying 5 results from an estimated 5 matches for "vector3".
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2005 Jun 20
3
vectorisation suggestion
Hi All,
I am counting the number of occurrences of the terms listed in one
vector in another vector.
My code runs:
for( i in 1:length(vector3)){
vector3[i] = sum(1*is.element(vector2, vector1[i]))
}
where
vector1 = vector containing the terms whose occurrences I want to count
vector2 = made up of a number of repetitions of all the elements of
vector1
vector3 = a vector of NAs that is meant to get the result of the
counting
My...
2012 Mar 30
1
avoiding expression evaluation when calling a function
Another question on functions - I have something that looks like
plotter<-function(i){
temp.i<-rwb[rwb$vector1 <=(i*.10),]
with(temp.i, plot(vector2, vector3, main=(i*.10),))
mod<-lm(vector3~vector3-1,data=temp.i)
r2<-summary(mod)$adj.r.squared
rsqrd[i]<-r2
legend("bottomright", legend=signif(r2), col="black")
abline(mod)
rsqrd<<-rsqrd
}
I'd rather not have to go into the function and re-type each vector and
da...
2008 Jun 13
1
x86 SSE* Pointer Favors
...gcc autodetection of the vectorized meaning of my code, or are
there specific libraries that I should call?
What I want to learn about is as simple as it gets:
typedef double Double; // or whatever SSE* needs as close equivalent
Double vector1[N], vector2[N];
// then fill them with stuff.
vector3= vector_mult(vector1,vector2, N);
vector4= sum(vector1, N);
I just need a pointer and/or primer. PS: If someone knows of a
superfast vectorized implementation of Gentleman's WLS algorithm,
please point me to it, too. I am still using my old non-vectorized C
routines.
if this email offends...
2007 Dec 29
2
[LLVMdev] llvm-gcc-4.2 and -O4
What are the current limitations of using -O4 in
llvm-gcc-4.2? As a first test, I compiled the molscript
program first as -O3 and it works fine. However if i
try to compile the same code as -O4, the build fails with...
ar -cru clib.a args.o str_utils.o dynstring.o err.o indent.o vector3.o matrix3.o quaternion.o body3d.o extent3d.o io_utils.o colour.o key_value.o named_data.o double_hash.o hermite_curve.o element_lookup.o aa_lookup.o mol3d.o mol3d_init.o mol3d_io.o mol3d_utils.o mol3d_chain.o mol3d_secstruc.o sgi_image.o vrml.o ogl_utils.o ogl_body.o ogl_bitmap_character.o
llvm-gcc...
2007 Dec 29
0
[LLVMdev] llvm-gcc-4.2 and -O4
...current limitations of using -O4 in
> llvm-gcc-4.2? As a first test, I compiled the molscript
> program first as -O3 and it works fine. However if i
> try to compile the same code as -O4, the build fails with...
>
> ar -cru clib.a args.o str_utils.o dynstring.o err.o indent.o
> vector3.o matrix3.o quaternion.o body3d.o extent3d.o io_utils.o
> colour.o key_value.o named_data.o double_hash.o hermite_curve.o
> element_lookup.o aa_lookup.o mol3d.o mol3d_init.o mol3d_io.o
> mol3d_utils.o mol3d_chain.o mol3d_secstruc.o sgi_image.o vrml.o
> ogl_utils.o ogl_body.o ogl...