Calculate Inverse Of A Matrix
Jan 21, 2008
I am trying to calculate the inverse of a matrix in vba here is my code, I get an error 2015 when I run my code
Function InterpolationCubique(TableauMaturites, TableauDonnees, DateCalculees, _
Optional EstFactActua As Boolean = False, _
Optional DateDeCalcul As Date)
On Error Goto zob:
Dim TabMat
'talbeau des maturites des donnes source
Dim TabData
'donnes source
Dim TabDates
'dates a calculer
Dim i As Integer, j As Integer
'variables de boucle
Dim TabRetour
'donnees renvoyees
Dim MatriceDate(4, 4)
'Matrice des coefficients des parametres
Dim MatDateInv As Variant
'Matrice inverse de MatriceDate
Dim VecTaux(4, 1)
'vecteur des donnees solutions du systeme
Dim VecParam
'vecteur des parametres calcules
' conversion des arguments en tableaux
TabMat = CTableau(TableauMaturites)
TabData = CTableau(TableauDonnees)
TabDates = CTableau(DateCalculees)
'dimensionnement du tableau de retour
Redim TabRetour(LBound(TabDates) To UBound(TabDates)).................
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Aug 22, 2008
Using VBA, I wish to work out the inverse matrix of a large matrix (100*100), but keep getting the # Num! Error. I am using the minverse function. I have defined variable as "variant", does this give me the same possiblities in terms of number size as the variable "Double"?
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Jan 23, 2014
I'm trying to do the inverse matrix of a matrix captured by an inputbox, but it doesn't work
This is the code:
Code:
option explicit
option base 1
sub matrix()
Dim M() As Double
Dim B() As Double
Dim Y() As Double
Dim columnas As Range
[code]......
the error is: Error 13 the types do not match
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May 26, 2012
how to inverse a 3x4 matrix in excel.
I can easly inverse NxN Matrix ( 3x3 ,4x4,2x2)
The matrix I am trying to inverse looks like this
1 1 1 1
3,5 2,5 1,8 2
17,1 11,1 5,1 6
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Jan 12, 2010
I have 26 columns of data, and each column is 1500 rows long. At the bottom of each column, I'd like to calculate a "inverse sum" -- the "inverse sum" should be the sum of the inverse of each value in the column. It should not be the inverse of the sum of the column. In other words, a column with these 3 values:
2
4
4
Should result in an "inverse sum" of 1, namely one-half plus one-quarter plus one-quarter. It should not result in one-tenth, namely the inverse of the simple sum, or ten.
** I know ** how to do this by adding a "computational column" next to each "data column", and the summing the computational column. But I don't want to do this because it will double the number of columns to 52, and since I'm not the only user of this spreadsheet, I prefer to not start hiding columns.
So... is there a way -- in one cell at the bottom of each column -- to calculate the "inverse sum" of the column above? A CSE array formula would be fine, if it works.
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Aug 26, 2007
I have a data chart on 200 people with overlapping membership in 20+ groups, represeted as binary (1=member, 0=notmember), for example: ...
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Apr 28, 2008
how to this in excel 2007... ie... cot^-1(X)
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May 16, 2007
Basically we have a "master" spreadsheet that people type in all day. During the day we have another team which send us a seperate " upload" spreadsheet inputs some of the cells for us, and I need to vlookup these values and ensure that all this information is input in.
Now a vlookup would be quite easy to do but I wont be able to use that as the cells would be full of Vlookups - and I would end up with a load of #N/A errors. The workbook is also shared and any macro would have to work with other users in the sheet.
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Nov 30, 2008
1) I have declared:
Mtrx(20,20) as Integer, where i have a Matrix
1 2 3
1 2 3
How can I do an inverse of this matrix using only VBA commands?
2) I have :
Mtrx(20,20) as Integer, for example :
3 1
2 0
and Mtrx1(20,20) as Integer :
1 2 0
0 1 1
How to multiply these matrices using only VBA ?
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May 5, 2014
=NORM.DIST(-0.7525,0,1,FALSE)=0.30057
I want to do inverse 0.30057 To get -0.7525 ,NORM.INV(0.30057,0,1) This function returns only cumulative distribution .
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Apr 15, 2014
I have longitude/longitude points in which I would like to apply inverse distance weighting statistics to.
I would like to possibly create a chart with the results...
See link below for explanation of inverse distance weighting.
[URL] ....
is there a function in excel or access that I would be able to use to achieve this goal?
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Apr 28, 2008
How to do this in excel 2007...
ie... cot^-1(X)
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Sep 24, 2008
From four known set values at the four corners of a table, how can I fill in the values in between? I.E. the inverse of extrapolating. I have a program within a programme that will do this, so i know its possible, but ideally i would like to be able to do it straight into a spreadsheet.
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Mar 21, 2014
For a table like the one below produced for the sake of example (actual is much much bigger) I want to make it list rows that are true for a certain column for a certain variable in the matrix. So for say water terrain, which types of activity can I do i.e. swimming. Or for Offroad the activites which I can't do i.e. Run and Swim.
ActivityWaterRoadOffroad
Jog nym
Run nyn
Walk nyy
Swim ynn
y=yes
n=no
m=maybe
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Apr 29, 2013
Below there are all the information needed to understand my problem.
M(1 to R,1 to C): matrix with R rows and C columns [element known]
M(i,j): elements of the matrix M in position i(row)-j(column) [element known]n
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Jan 16, 2013
We make many graphs using XYscatter charts with lots of data points using Excel 2003 with the horizontal scale properly scaled as frequency. I have been asked to label that axis in some way as period (=1/frequency) without changing the scaling for the data plot. Is there a suitable way to do this? It would be OK to just change the axis numbers to 1/frequency computed from them automatically. Is Excel 2010 any easier for this?
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Jan 26, 2013
I need to get the fee value, if I write "Name" and "Time".
Please read the simple example file named "Fee from matrix".
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Jun 15, 2009
Given one array variable (matrix n x n) M, I want to use the function sum, to sum along the rows.
I can use Application.WorksheeFunction.Sum(M)
but this will sum all the elements
and I would like smtg like this
Application.WorksheeFunction.Sum(M(1,)
Just sum the first line, or the i-th line.
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Jan 16, 2006
I have code to create a correlation matrix (NxN, where N is the number of columns). This is done by selecting an area that is NxN, entering the function and range, then hitting ctrl +shift + enter (array formula).
However, I want to convert this to accept VBA arrays, rather than a data range, and give the output in form of an array as well.
VB:
Function CorrmatK(dataRange As Object) As Variant
On Error Goto 20
Dim r As Integer, n As Integer, rr As Integer, i As Integer, j As Integer, k As Integer, doit As Integer
Dim x() As Variant, mc() As Double, ss() As Double, m() As Double, ob As Object
r = dataRange.Rows.Count
n = dataRange.Columns.Count
[Code] ......
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Jan 29, 2009
I NEED some code to convert a matrix to a singel column and it should be reversed to!
see attachment!
example:
FROM:
A1 B1 C1 D1
A2 B2 C2 D2
A3 B3 C3 D3
TO:
D1
C1
B1
A1
D2
C2
B2
A2
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Mar 29, 2009
I have to create a matrix from columns in this format:
A1 A2 1
A1 A3 4
A1 A4 6
A1 A8 4
A2 A5 2
A2 A8 3
with a lot of empty cells (here, for exemple A1,A6 & A1,A7 ) and (A1,A2) = (A2,A1)
I'd like to have :
_ A1 A2 A3 A4 A5 A6 A7 A8 .....
A1 0 1 4 6 0 0 0 4
A2 1 0 0 0 2 0 0 3
etc
The source data is in the attachment. Would it be possible to do it automatically?
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Nov 23, 2009
I have this code to take an area of data and perform the SUMXMY2 formula and output the results to another sheet. My problem is that the results are being outputted in a semi-matrix and i needed them in a column so i can them perform a sort. Is this possible and can anyone shed a light on the best way to do it?
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May 23, 2007
I have a matrix A with 12 rows and 10 columns. My problem is if in the cell(i,j) there is data then the same data should appear in a similar matrix B, but in a cell which is 15 cells behind the cell(i,j).
That is it should start counting upwards from cell (i,j) in B and once it reaches the top of the matrix it should continue counting from the bottom of the immediate left column and go up. When it reaches the 15 cell from cell(i,j) in b, it should print there the value that was in cell(i,j) of A.
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Mar 4, 2010
I am trying to figure out a better way to do my mileage for when I drive for work.
Currently I need to look at a sheet and see where I started and where I stopped and then I’ll see the distance.
Kinda look something like this.
Home
Work
School
Home
031Work
304School
140
What I would like to do is type in the “to” and “from” cell and have it automatically know the miles based on the chart above.
DateToFromDirectionTimeMiles3/4/10Home
Work
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Jul 25, 2006
I wasn't able to attach the file because it was too big, but you can download it from here www.easygcc.com/correl.rar. On the sheet called " Correlation" there is matrix, I am baiscally trying to fill in the correlation formula into every cell so the matrix is filled out. The data for the correlation calculation comes from the sheet called "Tech Data". I have filled in the correlation formula into a few of the cells as an example, but I don't want to continue doing this manually but rather have a macro do it for me. Otherwise this will take for ever. My macro is also a part of the file, if you would liek to look at it and maybe fix what I already have.
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Dec 4, 2006
I have a 5 x 5 matrix. When values are entered in 2 cell there needs to be a matrix lookup and the corresponding value needs to be entered into the 3 cell. Example :
- A B C D E
V 1 2 2 3 3
W 2 2 3 3 3
X 2 3 3 4 3
Y 3 3 4 4 5
Z 3 3 4 5 5
So if X and D are entered into the 2 cells the 3rd cell should show 4.
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Feb 14, 2007
I would like to do the following transformation in excel:
imagine the following matrix:
1 2 3
4 5 6
I would like to transform this into:
1
4
2
5
3
6
This is a simple version of my matrix, in reality it is much bigger, and I do not want to copy paste each column by hand. Any ideas?
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May 1, 2014
I'm trying to create a risk matrix like the attached example. I want to be able to enter a value and to have it to appear in the right quadrant.
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Jun 22, 2008
I'm running a small messenger company and I've got a geographic area divided into five zones: 1,2,3E,3W,& 4
Deliveries within 1 zone will be charged for one zone.
Deliveries from Zone 1 to Zone 2 will be charged for 2 zones. Etc.
I've got a list of zones in my From column and also in my To column.
I need to write a formula that will give my customers the Zones Charged in a seperate cell.
I learned how to do something like this back in school, but don't even know what to call it anymore. Maybe it's some kind of comples IF function.
FREE Deliveries to anyone in Long Beach, CA to the winner!!!
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Feb 17, 2009
On my example sheet it shows how many cables and how the cable length per job. What i need is for the hour/job column to be populated from the Hours sheet by matching the column and row. e.g 4 cables at 40 metres would give me cell D7 (27.89), as 25 metres would be no good - so rounding up would be required.
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