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Implicit Boundary Value Problem
Is there a way in Matlab to use the bvp4c or bvp5c functions to solve a system consisting of boundary value and algebraic equati...

mehr als 4 Jahre vor | 1 Antwort | 0

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Passing parameters in boundary value problem using BVP4C
For a system of boundary value problems I need to pass a parameter as a coefficient. Let's assume that I have defined the proble...

fast 5 Jahre vor | 2 Antworten | 1

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Reading numerical data from text file
I have a large number of text files containing numerical data of the form: -1.1389E+00 7.5269E-05 | -1.6667E-01 0.0...

etwa 5 Jahre vor | 1 Antwort | 0

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Replacing specified elements of a matrix with elements of a vector
Imagine a 6X6 zero matrix Z=zeros(6,6). I have a vector v=[1 2 3 4] and I want to send the elements of this vector to specified ...

mehr als 5 Jahre vor | 1 Antwort | 0

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Finding elements of an arrays having specified index numbers
If I select a number of elements from an M X N array (which usually follow a pattern) I need to assign the indices of these elem...

mehr als 5 Jahre vor | 1 Antwort | 0

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Use isnan with input excel data containing a combination of strings and empty cells in a row
When I read raw data from an excel file named INFILE.xls, I usually want to remove the free spaces between columns afterward and...

mehr als 5 Jahre vor | 1 Antwort | 0

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Sum of rows with whose row numbers are specified by another array
I have an array of the form: TTX = 20 9 2 7 40 10 10 1 60 2 10 9 0 1...

mehr als 5 Jahre vor | 1 Antwort | 0

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Identifying blocks of data from a cell array having the same header
I usually use xlsread to load large excel datasheets for further manipulation. The excel worksheet looks somewhat like this: ...

mehr als 5 Jahre vor | 1 Antwort | 0

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Creating table with variablenames properts as an array
I create a table of the form: Temp={'T_'} rpm=[70; 80; 90] Temperature=strcat(Temp,num2str(rpm)) TVALz=[190 220 300 140; 57 ...

mehr als 5 Jahre vor | 0 Antworten | 0

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How to perform mathematical operation between all elements of arrays with unequal numbers
I have two arrays A & B, being a nXm and a pXq array, repsctively. I want to take A(i,j) and multiply it in or subtract it from ...

mehr als 5 Jahre vor | 2 Antworten | 0

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Converting cell array from excel to numbers
Reading from a large excel sheet using xlsread, I am trying to read data and find numerical values assigned to specific lines in...

mehr als 5 Jahre vor | 3 Antworten | 0

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Rearranging Array Rows into Multiple Blocks while Maintaining the Old Order
How can I rearrange an array from alternating rows to multiple blocks, maintaining the order of the rows?

mehr als 5 Jahre vor | 2 Antworten | 0

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Converting 2D Array to 3D
How can I convert a 2D array to a 3D array in the following form?

mehr als 5 Jahre vor | 1 Antwort | 0

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Comparing common strings in two large string arrays imported from excel (using xlsread)
I have two very large string arrays (one of them 2000 rows and the other one is 7000 rows) that I import using xlsread and want ...

mehr als 5 Jahre vor | 2 Antworten | 0

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Beantwortet
Processing data of different classes read from the same column in an excel file
青野さん、答えありがとうございます。 Actually, I usually read all the data in the raw format as: [~,~,rawdata]=xlsread('filename.xls',1) And th...

mehr als 5 Jahre vor | 0

Frage

Processing data of different classes read from the same column in an excel file
Usually when I read large amounts of data from excel files the format of data in every column are the same. For example, a targe...

mehr als 5 Jahre vor | 2 Antworten | 0

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Numeircal integral with external function and external parameter
I would like to calculate an integral whereas the integrand is a separate external function. Consider as an example that I have ...

mehr als 5 Jahre vor | 1 Antwort | 0

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Re-arranging array columns in alternating form
I would like to write a function: function [Y]=AlternateColumns(X,n) that takes an array X of the form: and turns it into ...

fast 6 Jahre vor | 1 Antwort | 0

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Assign different colors to multiple plots without loop
I have one array x and a multi-column array Y and would like to plot all Y#s on the same diagram against X and assign each plot ...

fast 6 Jahre vor | 1 Antwort | 0

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Diagonal matrix from multiple columns of an array
I have the array M=[a b c; d e f; g h i] and I want to construct an array composed of several diagonal arra...

fast 6 Jahre vor | 1 Antwort | 0

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Function used in fsolve with array coefficients
Using fsolve I want to solve an equation for x which has the follwing form: a1*f1(x)+a2*f2(x)+...+ai*fi(x)=0 where ai a...

fast 6 Jahre vor | 1 Antwort | 0

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Polyfit with Some Coefficients Fixed
I want to fit a set of data using polyfit, but I want certain coefficients to have fixed values. E.g., if the data is to be fitt...

fast 6 Jahre vor | 1 Antwort | 0

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Double Integral of Multiple Functions in Array Form
I would like to shorten a numerical integration code by defining a set of functions of x & y that have the individual parts: ...

etwa 6 Jahre vor | 1 Antwort | 0

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Double Integral of Several Functions where Integrand is in Symbolic Array Format
Is there a way to calculate several double integrals simultaneously if the integrand function is first written in symbolic math ...

etwa 6 Jahre vor | 1 Antwort | 0

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Differential Equation with Coefficients as Integral Functions
I would like to solve a differential equation e.g. in the form: y"+f(x)y'=0 where the coefficient function can only be given a...

etwa 6 Jahre vor | 1 Antwort | 0

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how to define an integral function
I want to define a function in the integral form f(x)=integral(g(z), z=0, z=x) as an example: <</matlabcentral/ans...

etwa 6 Jahre vor | 1 Antwort | 0

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Squeeze array elements with almost (but not exactly) equal value into one element.
Thanks Walter, uniquetol seems to work fine and that's what I was looking for!

mehr als 6 Jahre vor | 0

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Squeeze array elements with almost (but not exactly) equal value into one element.
I have the array A=[1.74500 1.74567 1.73985 1.74271 6.67891 6.662314 6.61031 10.78678 10.76789 ...] I want to squeeze a...

mehr als 6 Jahre vor | 2 Antworten | 0

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Singular Jacobian with BVP4c used to solve eigenvalue problem
I have been trying to solve an eigenvalue problem of the form: y"+y/x+(Lambda^2)*(1-x^2)y=0 which is a Sturm-Liouville ...

mehr als 6 Jahre vor | 1 Antwort | 0

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Using errorbar for multi-column datasets without loop
I have two datasets X and Y and the respective error values of Y stored in errY (each having the size: 100 x 3). Naturally, I ca...

mehr als 6 Jahre vor | 1 Antwort | 1

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