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Hi all,
I think this must be simple but I can't get it right...
I have an MxM triangular matrix, the coefficients of which are stored in a vector, row by row. For example:
M = [ m00 m01 m02 m03 ] [ m11 m12 m12 ] [ m22 m23 ] [ m33 ]
is stored as
coef[ ...
Started by andreas buykx on
, 6 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
}
Sorry forgot the other function
unsigned int column_index(int i, int m) { int iTotalItems for these, but (minus any error checking):....
Took me some time to understand what you needed! :)
unsigned int row_index(int i, int m) { int matrix.
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So I have a polynomial that looks like this: -4x^0 + x^1 + 4x^3 - 3x^4
I can tokenize this by space and '+' into: -4x^0, x^1, 4x^3, -, 3x^4
How could I just get the coefficients with the negative sign: -4, 1, 0, 4, -3
x is the only variable that will ...
Started by Raptrex on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
Start with "-4x^0 + x^1 + 4x^3 - 3x^4" Split after ^number: "-4x^0", " + x^1", " + 4x^3", " - 3x^4" Now everything behind an ^ is an exponent, everything before the x is an coefficient
EDIT: Simple method to get the coefficient (including....
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I have two separate indexes holding different fields that together contain all the searchable fields for an index. For example the first index holds the indexed text for all documents, and the second holds tags for each and every document.
Note the example...
Started by mP on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
For a much is stored for each term in....
Cases, document deletion and index optimization can cause Lucene to reassign these document identifiers) = a*tagscore(k)+b*fulltextscore(k)
Where a and b will be empirically determined coefficients.
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Hey,
I've a quick question, is the vector variable representing
coefficients a public or private? I declared it as private but for
add, subtract etc methods, I can't seem to find a way to do the
calculations unless that variable is declared as public...
Started by m.salman86@gmail.com on
, 3 posts
by 2 people.
Answer Snippets (Read the full thread at omgili):
I tried using
rtSide.getCoefficient.
And yes, you can modify the coefficient vector it to retrieve the
coefficient at index i for the rtSide object.
The coefficients of a polynomial should have private access.
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Hi Professor Alexander,
Thanks for directing me to this forum. i need some clarifications on index tracking using cointegration- specifically dealing with the cointegrating regressions. I will try to summarize the questions i have as follows -even though...
Started by Chryshanie on
, 10 posts
by 3 people.
Answer Snippets (Read the full thread at carolalexander):
In cointegration analysis as well - so do constrain your coefficients to be reasonable - according use ln prices in the cointegrating regression when index is a price-weigted one then a constant benchmark be? It it better to use the ....
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On Thu, 29 Oct 2009 21:09:55 GMT, "Michael" <mikharr@bigpond.com
www.runtobefree.com
Site now available for testing....
(i) Lotto Odds
(ii) Line to Index
(iii) Index to Line
Cheers Mick.
Started by Michael on
, 17 posts
by 6 people.
Answer Snippets (Read the full thread at omgili):
From index to line and vice
versa? Combanics as described by James McCaffrey
http://msdn.microsoft.com" <mikh...@bigpond.com
Michael
What's the method you used to calculate from index to line and vice
Michael
What's the method you ....
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While trying to evaulate polynomials using Horner's Rule I have a sample code segment like so:
int Horner( int a[], int n, int x ) { int result = a[n]; for(int i=n-1; i >= 0 ; --i) result = result * x + a[i]; return result; }
I understand that a is...
Started by Raisins on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
Therefore, n is one less (and a polynome of degree n, aside from 0 which is kind of special, has n+1 coefficients, so size of array.
N is the size of the array
'n' is index of the last element in the array.
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Gini coefficient : inequality between the rich and the poor For those who don't know the Gini coefficient, please check the Wikipedia article . In brief, 0 means total equality (same share of weath for each person in the country), while 1 is total inequality...
Started by Maciamo on
, 14 posts
by 8 people.
Answer Snippets (Read the full thread at eupedia):
My point being the Gini index....
Cheers GINI index 2009: http://hdrstats.undp.org/en/indicators/161.html I don't see how relevant the Gini index is wit out other rule.
A thank you from the poor, instead of constant demands for more .
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Hi guys i am new SQL Server Databases. i am just trying to create a datamodel Stock Forecast database
A forecast involves models , signals , coefficients , and signal data .
First, models must be defined. Each model should have an id, name, and description...
Started by Anoop on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Interesting....
You SG_Description MODEL_SIGNALS (PK) M_ID (PK) SG_ID COEFFICIENTS (PK) M_ID (PK) SG_ID (PK) Begin and index the relationships.
Design is lacking a mechanism for relating the coefficients to the model/signal relationship.
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Hi there
I'm trying to script Dice's Coefficient, but I'm having a bit of a problem with the array intersection.
def bigram(string) string.downcase! bgarray=[] bgstring="%"+string+"#" bgslength = bgstring.length 0.upto(bgslength-2) do |i| bgarray <...
Started by Rui on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Intersect a , b a.inject([]) do |intersect, s| index = b.index(s) unless index.nil? intersect << s b.delete_at(index) end intersect end end a= ["al","al","lc" ,"lc","ld"] b = ["al","al" ,"lc" ,"ef.
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