How quickly subtract the two large arrays ?
A = random (10 ^ 5.10 ^ 5);
B = rand (10 ^ 5.10 ^ 5);
@time C = A-B ;
very long: /
Paul
How to save sparse in HDF5?
julia> D=sparse(I,J,V);
julia> h5write("D.h5","D", D);
ERROR: no method write(HDF5File, ASCIIString, SparseMatrixCSC{Int64,Int64})
in h5write at C:\Users\SAMSUNG2\.julia\v0.3\HDF5\src\plain.jl:527
Paul
F is dense
julia> size(F)
(6237437,284)
julia> size(L)
(6237437,1)
julia> F[:,1][L.==0]
ERROR: BoundsError()
in getindex_bool_1d at array.jl:285
julia> L
6237437x1 sparse matrix with 20869 Int16 entries:
[66 , 1] = 1
[104, 1] = 0
Paul
.. and beter is distributed set by columns..
Is any idea ?
Paul
W dniu 2014-08-10 17:20, Kevin Squire pisze:
Actually, Julia uses column major ordering of arrays.
Cheers, Kevin
On Sunday, August 10, 2014, Paul Analyst <mailto:paul.anal...@mail.com>> wrote:
Thx Gael
Is it on
Thx Gael
Is it one way ? I have next proceses optimized for cols ...
Paul
W dniu 2014-08-10 15:32, gael.mc...@gmail.com pisze:
From my understanding, Julia being row major, it makes little sense to split
your arrays vertically.
If your algorithm makes use of a complete row instead of a complet
;
>
> On Wed, Aug 6, 2014 at 5:39 AM, paul analyst > wrote:
>
>> How to count consecutive parallel loops at work on a large matrix?
>> D = big sparse
>> for i = 0: ...
>> c$i = cor (D [:, and * 1000 + 1: and * 1000 + 1000])
>> end
>> Paul
>>
>
>
What is wrong? Why "dd" array is of type "Any" ?
ulia> addprocs(4)
4-element Array{Any,1}:
2
3
4
5
julia> D=readcsv("v4dane.txt");
julia> d=distribute(D)
2888x4 DArray{Float64,2,Array{Float64,2}}:
julia> d
2888x4 DArray{Float64,2,Array{Float64,2}}:
0.0 0.0 0.00.0
0.0 50.0
How to divide DArray vertically and not horizontally?
I need 2 columns with 512 rows ...
Paul
julia> addprocs(2)
2-element Array{Any,1}:
2
3
julia>
julia> remotecall_fetch(2, whos)
From worker 2: Base Module
From worker 2: Core
How to count consecutive parallel loops at work on a large matrix?
D = big sparse
for i = 0: ...
c$i = cor (D [:, and * 1000 + 1: and * 1000 + 1000])
end
Paul
No help ?
W dniu czwartek, 31 lipca 2014 18:12:24 UTC+2 użytkownik paul analyst
napisał:
>
> i=1
> Df=zeros(D); # sparse array 10^6 x 10^3
> ee=mean(D[:,i]);
> Y=(D[:,i].-ee);
> temp=mean(Y)
> E=ee-temp;
> Df[:,i]=D[:,i].-E
> ERROR: InexactError()
> in copy!
i=1
Df=zeros(D); # sparse array 10^6 x 10^3
ee=mean(D[:,i]);
Y=(D[:,i].-ee);
temp=mean(Y)
E=ee-temp;
Df[:,i]=D[:,i].-E
ERROR: InexactError()
in copy! at abstractarray.jl:149
in convert at sparse/sparsematrix.jl:160
in vcat at abstractarray.jl:503
Paul
day, July 28, 2014 1:41:55 PM UTC+5:30, paul analyst wrote:
>>
>> Correlation sparse array is very slow. Out of memory on a dense array when
>> we have 30,000 columns. How quickly it calculated?
>>
>> julia> I=int32((rand(10^7)*999).+1);
>>
>> julia
Correlation sparse array is very slow. Out of memory on a dense array when
we have 30,000 columns. How quickly it calculated?
julia> I=int32((rand(10^7)*999).+1);
julia> J=int32((rand(10^7)*2).+1);
julia> V=int8((rand(10^7)*9).+1);
julia> D=sparse(I,J,V);
julia> @time cor(D[:,1:30]);
How to save sparse array to csv
[1, 4] = 1
[4, 7] = 2
[5, 9] = 3
[3, 18] = -5
?
Paul
rse(I,J,V)`, where I is the vector of row indices, J of
> column indices, and V of values.
>
> -viral
>
> On Friday, July 25, 2014 1:29:07 AM UTC+5:30, paul analyst wrote:
>>
>> how to read data from a file to a new sparse matrix? date = readcsv ("
>> data.txt")
>> Paul
>>
>>
how to read data from a file to a new sparse matrix? date = readcsv ("
data.txt")
Paul
Julia Documentation:
cartesianmap(f, dims)
Given a dims tuple of integers (m, n, ...), call f on all combinations of
integers in the ranges 1:m, 1:n,
etc.
Example:
julia> cartesianmap(println, (2,2))
11
21
12
22
julia>x= cartesianmap(2,2)
ERROR: no method cartesianmap(Int64, Int64)
How to take
THX, it work!
Paul
W dniu 2014-07-13 09:31, Stefan Karpinski pisze:
readcsv("data.txt", UTF8String) should help.
On Sun, Jul 13, 2014 at 12:15 AM, Paul Analyst <mailto:paul.anal...@mail.com>> wrote:
ok,
now :
julia> data=readcsv("data.txt")
ot;. How you defend against such situations?
Paul
W dniu 2014-07-13 09:03, John Myles White pisze:
parse isn’t a cure for anything. parse interprets inputs under the
assumption that they are valid Julia code. Your data isn’t valid Julia
code, so you should not use parse.
— John
On Jul 13,
At first I did and it was a problem with the "Inf". I realized that
parse a cure for "Inf" and the like.
Paul
W dniu 2014-07-13 08:57, Stefan Karpinski pisze:
You should NOT use parse to parse your data. Is that how you're doing it?
On Sat, Jul 12, 2014
aries from the network.
Paul
W dniu sobota, 12 lipca 2014 18:14:39 UTC+2 użytkownik Stefan
Karpinski napisał:
The problem here seems to be that you're comparing types
of values that are incomparable like a float and a string.
I need all indexes where a[:] >5
julia> a=rand(10)*10
10-element Array{Float64,1}:
4.84005
8.29994
8.8531
3.42319
2.60318
7.25313
0.816263
4.44463
6.71836
4.65337
julia> a.>5
10-element BitArray{1}:
false
true
true
false
false
true
false
false
true
false
julia> find(a.>5
I have a very long vector (5*10^6 ) with the words in a foreign language. I
can not sort
julia> sort (y1u)
ERROR: no method isless (Float64, substring {UTF8String})
in the sort! at sort.jl: 233
in the sort! at sort.jl: 277
in next at string.jl: 630
Probably there is a word reserved f
Despite many attempts, I can't to deploy a simple parallelization and ask
for help on a specific the example.
Array WS can be broken down into clones, and at the finish may then add
them, but WS is great and it would be better without cloning it.
D=readcsv("D.txt");
k,l=size(D)
10,1
WS
Vector[[i,j] for i in x, j in x] |> vec
|
On Thursday, June 19, 2014 12:16:32 PM UTC-7, paul analyst wrote:
How to convert vector to a series of possible pairs of
elements ?
[1,2,3]
I expect
[1,1] [1,2] [1,3] [2,1] [2,2] [2,3] [3,1] [3,2] [3,3]
How to convert vector to a series of possible pairs of elements ?
[1,2,3]
I expect
[1,1] [1,2] [1,3] [2,1] [2,2] [2,3] [3,1] [3,2] [3,3]
How to Do a vector indicating the position of a particular value (eg 1) in
another
vector?
by this question: (1)? [0 0 1 01]
expected vector [3,5]
Paul
Great lesson thanks, I'll try :)
Paul
W dniu 2014-06-18 16:51, Tim Holy pisze:
On Wednesday, June 18, 2014 06:06:24 AM paul analyst wrote:
>Thanks, but I'm an analyst market, not a programmer;/ Still, I really like
>Julia. Historically, only SPSS. I can so deeply programmed
to vectors (if that
> fits
> your usual usage case), it would be possible to have a special version of
> setdiff operating on ranges that would be much faster. Would be great if
> you
> could write & submit that.
>
> --Tim
>
> On Wednesday, June 18, 2014 02
-18 13:38, Tim Holy pisze:
setdiff
--Tim
On Wednesday, June 18, 2014 01:29:05 PM Paul Analyst wrote:
number removal line is dynamic. This time 4 then maybe 2 maybe 3 etc
Question now :
How to construct fromvector [1:10] new vector without [2,4] like this
[1,3,5:10]
Paul
W dniu 2014-06-18 1
AM Paul Analyst wrote:
Is possible or not ? Delete rows in array ?
Paul
W dniu 2014-06-17 07:49, Paul Analyst pisze:
Thx, for this info
But not about items I need delete some rows ...
How fast delete rows in arrray, one [3,:]or more [[2,4],:] ?
Paul
W dniu 2014-06-16 21:22, Stefan Schwarz
Is possible or not ? Delete rows in array ?
Paul
W dniu 2014-06-17 07:49, Paul Analyst pisze:
Thx, for this info
But not about items I need delete some rows ...
How fast delete rows in arrray, one [3,:]or more [[2,4],:] ?
Paul
W dniu 2014-06-16 21:22, Stefan Schwarz pisze:
deleting in place
Thx, for this info
But not about items I need delete some rows ...
How fast delete rows in arrray, one [3,:]or more [[2,4],:] ?
Paul
W dniu 2014-06-16 21:22, Stefan Schwarz pisze:
deleting in place a matrix is not supported and does not make sense.
why is that?
you've for instance a 5x5 matr
Big thx, it work,
Paul
W dniu 2014-06-16 21:24, Dahua Lin pisze:
|u =trues(length(x))
u[[5,7]]=false
ir =0
vr =-Inf
fori =1:length(x)
ifu[i]&&x[i]>vr
ir =i
vr =x[i]
end
end
|
No sugestion ?
Paul
W dniu poniedziałek, 16 czerwca 2014 14:06:23 UTC+2 użytkownik paul analyst
napisał:
>
> I have a random vector x = rand (10)
> how to find the index of maximum but omitting to check any field eg not x
> [5,7]
> some like:
> indmax y = (x [but not read [5,7]])
> Paul
>
a=rand(5,5)
how Delete row(s) or col(s) of array ?
Paul
I have a random vector x = rand (10)
how to find the index of maximum but omitting to check any field eg not x [
5,7]
some like:
indmax y = (x [but not read [5,7]])
Paul
czerwca 2014 20:50:03 UTC+2 użytkownik Andrea Pagnani
napisał:
>
> I think
>
> klient[ 500 .< klient[:,2] .<= 10,:]
>
> should work
>
> Andrea
>
> On Tuesday, June 10, 2014 8:41:17 PM UTC+2, paul analyst wrote:
>>
>> How use two conditions
How use two conditions to filtred array?
Left and right side this code separatly are good. But how use booth
conditions in filter ? (take rows with <1 and >500 in col 2)
klient[klient[:,2].<=10;:] & klient[klient[:,2].>500;:]
Paul
Thx James, i will try
Paul.
W dniu 2014-06-09 19:04, James Porter pisze:
https://github.com/porterjamesj/GumboParser.jl
the most usefull way:)
Big Thx, working
Paul
W dniu 2014-06-05 17:33, Isaiah Norton pisze:
Probably need to restart Julia. Otherwise, no idea. It works for me on
Windows.
On Thu, Jun 5, 2014 at 11:24 AM, Paul Analyst <mailto:paul.anal...@mail.com>> wrote:
julia> Pkg.bui
")
ERROR: parse_file not defined
file is in this dir...
Paul
W dniu 2014-06-05 17:21, Isaiah Norton pisze:
try Pkg.build("LightXML")
On Thu, Jun 5, 2014 at 11:03 AM, Paul Analyst <mailto:paul.anal...@mail.com>> wrote:
new verison and new errors (
b.jl, in
expression starting on line 4
while loading C:\Users\SAMSUNG2\.julia\LightXML\src\LightXML.jl, in
expression starting on line 24
julia>
Paul
W dniu 2014-06-05 15:45, Jameson Nash pisze:
Version 0.3.0-prerelease+2599 (2014-04-11 23:52 UTC)
Commit bf7096c (54 days old master)
y
A fresh approach to technical computing
Documentation: http://docs.julialang.org
Type "help()" to list help topics
Version 0.3.0-prerelease+2599 (2014-04-11 23:52 UTC)
Commit bf7096c (54 days old master)
x86_64-w64-mingw32
julia> Pkg.add("LightXML")
INFO: Cloning cache of LightXML from
git://gith
table to
STDOUT?
-- John
On Jun 4, 2014, at 9:33 AM, Kevin Squire <mailto:kevin.squ...@gmail.com>> wrote:
I would think "web page" = "HTML document".
On Wednesday, June 4, 2014, John Myles White
mailto:johnmyleswh...@gmail.com>> wrote:
I don't rea
Sorry, is ok , i have vectors ..
Paul
W dniu środa, 4 czerwca 2014 20:09:46 UTC+2 użytkownik paul analyst napisał:
>
> Big txh, it works,
> but now i heve 100 arrays (in real more... ) with 99 empty columns. Is
> posible read m1 , m2 to vector , not to array ?
> Paul
>
` is being
>>> interpreted as the name of its argument, but this is not a valid identifier.
>>>
>>> Finally, although you almost certainly don't want to do what you're
>>> trying to do, you can if you separate creation of the symbol from
>>&g
dynamic creation and naming of variables, what wrong?
I need 100 new variables : m1 to m 100
julia> for i=1:100
"m" * string(i)=readcsv(string("m",i,".txt"))
end
ERROR: syntax: "#" is not a valid function argument name
nice will be in 2 varaints:
1 All inside html
2. Only text displayed by browser
Paul
W dniu 2014-06-04 18:23, John Myles White pisze:
I don't really understand what you mean by web page.
-- John
On Jun 4, 2014, at 9:20 AM, Paul Analyst wrote:
Any help ?
How to read and chang
Any help ?
How to read and change the content of web pages to the vector ["word1",
"word2", "word3", ",,,", "wordlast"]?
W dniu 2014-06-04 12:47, paul analyst pisze:
How to read and change the content of web pages to the vector
["word1", "word2", "word3", ",,,", "wordlast"]?
Paul
It is there. If D aand D1 ar two arrays with vectors in columns You have
this in Distance package.
julia> r = pairwise(Euclidean(), D,D1)
4x4 Array{Float64,2}:
4579.3 4528.87 2650.71 7326.62
5658.24 3646.92 2587.83 7348.04
5729.42 4581.69 1941.65 7266.23
5733.62 4656.58 2488.6
How to read and change the content of web pages to the vector ["word1", "
word2", "word3", ",,,", "wordlast"]?
Paul
2014-06-01 16:56 GMT+02:00 paul analyst >
> :
>
>> julia> M = {cor(rand(4,4)) for i=1:2}
>> 2-element Array{Any,1}:
>> 4x4 Array{Float64,2}:
>> 1.0 -0.227554 0.507924 -0.800516
>> -0.227554 1.00.220113 0.75924
>> 0.507924
julia> M = {cor(rand(4,4)) for i=1:2}
2-element Array{Any,1}:
4x4 Array{Float64,2}:
1.0 -0.227554 0.507924 -0.800516
-0.227554 1.00.220113 0.75924
0.507924 0.220113 1.0 -0.272765
-0.800516 0.75924 -0.272765 1.0
4x4 Array{Float64,2}:
1.0 -0.65399
not defined
in anonymous at no file:1379
ERROR: no method +(UndefVarError, UndefVarError)
in mr_pairwise at reduce.jl:534
julia> toc()
elapsed time: 2.493525081 seconds
2.493525081
julia>
W dniu niedziela, 1 czerwca 2014 16:27:14 UTC+2 użytkownik paul analyst
napisał:
>
>
>
>
&
const k=2
>
> the timing results should be similar.
>
>
> 2014-06-01 16:09 GMT+02:00 paul analyst >
> :
>
>>
>> D:\install\Julia\Julia 0.3.0-prerelease-win64-ver3\Julia 0.3.0-prerelease
>> ver 3>bin\julia.exe -p 8
>>_
D:\install\Julia\Julia 0.3.0-prerelease-win64-ver3\Julia 0.3.0-prerelease
ver 3>bin\julia.exe -p 8
_
_ _ _(_)_ | A fresh approach to technical computing
(_) | (_) (_)| Documentation: http://docs.julialang.org
_ _ _| |_ __ _ | Type "help()" to list
not the same as a (or b, from the prior stage, for that
matter). It doesn't matter whether a and b are numbers or
matrices, large or small
On Wednesday, May 28, 2014, paul analyst > wrote:
Thx,
I'm surprised. I suspect, and I did:
a = ones (5,5)
e identifier FSbis to the same memory that FS is bound to, so
> the identifiers are aliases for one another.
>
> If you want FSbis to start out initialized to the same values as those in
> FS, but be a separate container, use `FSbis = copy(FS)`.
>
> On Wednesday, May 28, 2014 2:07:
Code running back? what happens?
I have a array FS
julia> println(sum(FS));
9.8267205e7
julia> l,m=size(FS);
julia> FSbis=FS;
julia>
julia>
julia> for i=1:l; #println(i)
if w[i]==1 us=hcat(F[i,:]',[1:1:m]);
us=sortrows(us, by=x->x[1],rev=true);
for j=1
t;
> will give you the portion of a for which the slope is steeper than 45
> degrees. (I might be off by one here, so you might want to experiment a
> little and see if you need to include one more, or one less, data point to
> get exactly what you want...)
>
> // T
>
> On Tue
an, but
> that still depends on the source, distribution, and meaning of your data.
> In any case, you'd be better off asking this somewhere like CrossValidated (
> http://stats.stackexchange.com/) -- this isn't a Julia question.
>
>
> On Tue, May 27, 2014 at 8:22 AM, paul ana
Does not work always, distributions are different.
How to find the number of elements of the vector from which the chart is
getting flat (where is the beginning of the tail?)
Paul
W dniu wtorek, 27 maja 2014 12:19:09 UTC+2 użytkownik Yuuki Soho napisał:
>
> The simplest way to do it is probably
W dniu wtorek, 27 maja 2014 12:19:09 UTC+2 użytkownik Yuuki Soho napisał:
>
> The simplest way to do it is probably to use a quantile:
>
>
> a=[5 3 2 1.5 1.1 1 0.8 0.25 0.2 0.16]
>
> q = quantile(vec(a),0.1)
>
> a = a[1:cut]
>
>
> Does not work always, distributions are different.
> How to find th
How quickly and automatically cut off long tails
We have often sorted vectors with long tails.
How quickly and automatically find the cut-off point where the graph
flattens?
Vectors are long and have a variety of unpleasant characteristics.
Simple sample:
a=[5 3 2 1.5 1.1 1 0.8 0.25 0.2 0.16]
Thx,
W dniu poniedziałek, 26 maja 2014 19:23:24 UTC+2 użytkownik Jameson napisał:
>
> yes, unless i did not understand the question correctly
>
> On Mon, May 26, 2014 at 1:15 PM, paul analyst
> >
> wrote:
> > if vector a=[1, 4, 56, 67, 99]
> >
> >
if vector a=[1, 4, 56, 67, 99]
cod is
for i in a
F(i)
end
?
Paul ?
W dniu poniedziałek, 26 maja 2014 19:09:03 UTC+2 użytkownik Jameson napisał:
>
> for i in [1, 4, 56, 67, 99]
> F(i)
> end
>
> On Mon, May 26, 2014 at 12:52 PM, paul analyst
> >
> wrote:
&
I have some vector : 1 4 56 67 99
and some loop:
for i
F(i) do somethink
end
How to assign a variable (i) only value from a vector?
Paul
How quickly calculate distances arrays etc.
This is an array of quotients, on the diagonal must be zero.
Are there any features that quickly count this type of arrays?
Data in F...
k=size(F,2);
O=zeros(k,k);
for o=0:k-2;
for i=1:k-1-o j=i+1+o;
O[i,j]=sum(F[:,i])/sum(F[:,j]);
O[j,i]=1/O[i,j];
en
16.48.30 UTC+2 skrev paul analyst:
b- not is zeros sometimes...
c= diagm(a)
b=b+c.
Thx
Paul
W dniu wtorek, 20 maja 2014 16:17:11 UTC+2 użytkownik Oliver
Lylloff napisał:
Hi Paul,
if b is just zeros, then b = diagm(a).
Best,
Oliver
b- not is zeros sometimes...
c= diagm(a)
b=b+c.
Thx
Paul
W dniu wtorek, 20 maja 2014 16:17:11 UTC+2 użytkownik Oliver Lylloff
napisał:
>
> Hi Paul,
>
> if b is just zeros, then b = diagm(a).
>
> Best,
> Oliver
>
>
>
> Den tirsdag den 20. maj 2014 15.04.33 UTC+2
a=rand(5)
b=zeros(5,5)
how to apply a on diagonal b ?
Paul
Varimax rotation loadings matrix sizes of about 3000x3000, unless as a
result of errors of machine completely loses ortogonality.
Please help with the rotation of large matrices.
Paul
in matlab :
x=[1,4]
B=repmat(A,x)
/(B==)
how to replicate A in Julia
Paul
At the same time as a sort of two arrays? k = 1. Matrix A=10 × k matrixB
=10 x k
I do not want to connect matrix.
Im sorting the rows of the matrix B and I would like to sort matrix A by
thesame key. Is
it possible to link the matrix without concatenate (hcat) them?
Paul
evenly spaced indexes like that, you can
> use a range:
>
> b = a[:, 1:2:5]
>
> On Tuesday, April 29, 2014 1:23:36 PM UTC-5, paul analyst wrote:
>>
>> a =rand(5,5)
>> b=slicedim(a,2,1,3,5)
>> ERROR: no method slicedim(Array{Float64,2}, Int64, Int64, Int64, Int64)
>>
>> how to choose from matrix a column 1,3,5 wihout while etc.?
>> Paul
>>
>
a =rand(5,5)
b=slicedim(a,2,1,3,5)
ERROR: no method slicedim(Array{Float64,2}, Int64, Int64, Int64, Int64)
how to choose from matrix a column 1,3,5 wihout while etc.?
Paul
W dniu 2014-04-28 22:34, Tim Holy pisze:
Read as CSV, and write as HDF5?
--Tim
On Monday, April 28, 2014 11:24:06 AM paul analyst wrote:
How to convert csv big file (utf8) to bin format ?
csv file:
12356.5,12455.5,12545.4,124784.2
12564.2,25488.01,25544.6,125847.2
...
How to read new file
to make new bug?
Paul
W dniu poniedziałek, 28 kwietnia 2014 07:26:51 UTC+2 użytkownik Viral Shah
napisał:
>
> I filed https://github.com/JuliaLang/julia/issues/6676
>
> -viral
>
> On Monday, April 28, 2014 4:04:33 AM UTC+5:30, Simon Kornblith wrote:
>>
>> If diag is passed a vector rather than a
How to convert csv big file (utf8) to bin format ?
csv file:
12356.5,12455.5,12545.4,124784.2
12564.2,25488.01,25544.6,125847.2
...
How to read new file (bin ) in Julia ?
Paul
Hi Ethan
Changing the subject: Do you have errors in your own serials vectors? With
the array size is around 2500 and more last eigenvectors unfortunately often
goes
out not perpendicular. I am looking for a solution to this problem.
Paul
W dniu sobota, 26 kwietnia 2014 16:34:52 UTC+2 użytko
n"].'
> 1x3 Array{ASCIIString,2}:
> "Andreas" "Noack" "Jensen"
>
> or use white space
>
> julia> ["Andreas" "Noack" "Jensen"]
> 1x3 Array{ASCIIString,2}:
> "Andreas" "Noack&qu
in old Julia version works this code:
stringvector=["string1","string2","string3"]';
today :
ERROR: no method conj(ASCIIString)
in ctranspose at array.jl:1283
how today to create horizontal string vector ?
Paul
I can read part fo array saved in HDF5 file. Is ok , nice!
julia> data = h5read("X.h5", "grupa", (1:3,1))
3x1 Array{Float64,2}:
0.269948
0.561731
0.894856
But I cant read all first column (:,1) :
julia> data = h5read("X.h5", "grupa", (:,1))
ERROR: no method h5read(ASCIIString, ASCIIString, (C
Thanks,
I have a lot of these calculations. Check the command-and-loop performance.
W dniu sobota, 19 kwietnia 2014 23:33:52 UTC+2 użytkownik Steven G. Johnson
napisał:
>
>
>
> On Saturday, April 19, 2014 5:32:10 PM UTC-4, Steven G. Johnson wrote:
>
>> norm(a + b)
>> acos(dot(a, b) / (norm(a) *
Is Julia command to do:
1 length of the resultant vector of vectors a, b
2 angle between the vectors a, b?
Paul
Big thx,
what is "-2" before t ?
Paul
W dniu sobota, 19 kwietnia 2014 14:47:40 UTC+2 użytkownik Stefan Karpinski
napisał:
>
> scale!(v, 1 .- 2t)
>
>
> On Sat, Apr 19, 2014 at 5:11 AM, paul analyst
> > wrote:
>
>> I have a logical vector t
>>
W dniu sobota, 19 kwietnia 2014 11:24:02 UTC+2 użytkownik paul analyst
napisał:
>
>
>
> W dniu piątek, 18 kwietnia 2014 21:35:10 UTC+2 użytkownik Douglas Bates
> napisał:
>>
>> On Friday, April 18, 2014 11:43:37 AM UTC-5, paul analyst wrote:
>>>
>>&g
W dniu piątek, 18 kwietnia 2014 21:35:10 UTC+2 użytkownik Douglas Bates
napisał:
>
> On Friday, April 18, 2014 11:43:37 AM UTC-5, paul analyst wrote:
>>
>> How quickly convert data from 3 columns to an array of x, y
>> Data are the two columns of text, and the third
I have a logical vector t
julia> t
1x4 BitArray{2}:
true false false false
and matrix v
julia> v
4x4 Array {Float64, 2}:
-0.0018187 -0.18174 0.982684 0.0360478
-0.018408 0.98314 0.1819 -0.00297265
-0.995394 -0.0167994 -0.00839779 0.0940118
0.0940681 0.0111097 -0.0342677 0.99491
How to assign to vector :
e c c d a c d a c d d
Indexes of vector:
e a c b d
I need :
e 1
c 3
c 3d 5
a 2
c 3
d 5
a 2
c 3
d 5
d 5
Paul
Each column is a separate vector? Maybe so? It has quickly afterwards.
Paul
W dniu czwartek, 17 kwietnia 2014 23:16:00 UTC+2 użytkownik Stéphane
Laurent napisał:
>
> Hello,
>
> I need to deal with some objects represented as arrays whose some columns
> are BigFloat, some columns are Int, some c
How quickly convert data from 3 columns to an array of x, y
Data are the two columns of text, and the third value:
x y z a r 0,31 a r 0,00 a s 0,86 a s 0,80 a t 0,28 b r 0,52 b s 0,79
b s 0,86 b t 0,25 b u 0,15 … … 0,29 q r 0,41 q t 0,61 q v 0,62
The data are:
millions of rows
Noack Jensen pisze:
That is not possible yet.
Please copy and paste the commands and errors from the terminal. It
makes it easier to figure out what is wrong.
2014-04-07 18:03 GMT+02:00 paul analyst <mailto:paul.anal...@mail.com>>:
Friends , case back:
R = convert (Matrix
; of precision
>
> julia> BigFloat("0.1")
> 1.02e-01
>
> with 256 bits of precision
>
> The better option is to initialize with a string.
>
>
> kl. 10:04:54 UTC+1 lørdag 4. januar 2014 skrev Andreas Noack
whatever i'm no 1, but it is not important,
How to slice vector b not SubArrary...
>
> a=zeros(10,10,10)
> for i=1:10^3
> a[i]=i
> end
>
> OK! I have 3D array.
>
> Now I need one vecotr from any dimension.
> If
> b=slice(a,1,1,:)
> Julia return SubArray not vector !
> How to slice this (and othe
(create 3d array)
a=zeros(10,10,10)
for i=1:10^3
a[i]=1
end
OK! I have 3D array.
Now I need one vecotr from any dimension.
If
b=slice(a,1,1,:)
Julia return SubArray not vector !
How to slice this (and other) *vector* from 3D array?
Paul
Thx. It is grate !
This is great! Does the panel does not have all the documentation packages?
Paul
W dniu 2014-03-25 18:14, Stefan Karpinski pisze:
StatsBase provides extensive support for weights:
http://statsbasejl.readthedocs.org/en/latest/
On Tue, Mar 25, 2014 at 12:51 PM, paul
How to use weight in the data. Often in social research data are used in
weight. It is one variable (column) indicates how much a given row in the
data set is weighed (average weight = 1). Typical weights are numbers in
the range 0.01 - 10.0 but can be any positive numbers. Sums, averages, and
I have data from a base in my calendar like this:
20130628,2
20130701,3
19970224,4
19990230,5
How to calculate the distance in time (in days) between dates and other
similar treatments on the calendar?
Paweł
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