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Dany


Attivo dal 2012

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Domanda


how to create a contour for a fittype object?
Hi, i've fitted a surface for a scattered data using the following commands: load('full_data.mat') ft = fittype( 'p...

oltre 9 anni fa | 1 risposta | 1

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Domanda


could a non linear surface be fitted to a scattered data?
Hi, i have a scattered data [x, y, z], not gridded. i would like to fit a surface to that data, although i dont what that surf...

oltre 9 anni fa | 0 risposte | 0

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Domanda


spline fitting for scattered data.
how can i fit a surface spline for scattered [x,y,z] data from the command line. thank you.

oltre 9 anni fa | 0 risposte | 0

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Domanda


odd behavior of the colorbar
Hi, after creating a 3D surface, i am trying to add a colobar but i am getting strange results. the colorbar shows the same ...

quasi 10 anni fa | 0 risposte | 0

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Domanda


predetermined grid size for "fit" function
hi, i am trying to fit a surface using the "fit" function: [fitresult, gof] = fit( [data(:,1), data(:,2)], data(:,3), ft, ...

quasi 10 anni fa | 0 risposte | 0

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Domanda


how to show only a part of a surface fit that falls within a certain polygon
Hi, i have created a surface fit using the next code: *ft = 'thinplateinterp'; [fitresult, gof] = fit( [xData, yData], zD...

quasi 10 anni fa | 1 risposta | 0

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Domanda


understending PCA final components
Hi, i have a question about PCA results. if i am analysing tidal data record using PCA i am getting first two PC's that look th...

quasi 10 anni fa | 0 risposte | 0

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Domanda


calculating dual quaternion from two vectors
hi, i have two points (vectors) and i would like to calculate the rotation between them using quaternions. as i understand qu...

circa 10 anni fa | 1 risposta | 0

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Domanda


is it posible to create matrixplot for several data types?
Hi, i have a data set on wich i performed a PCA analysis. after getting the "scores" of the analysis im trying to create a mat...

oltre 10 anni fa | 1 risposta | 0

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interpolation on an iregular shaped grid
thank you, thats exactly what i did.

oltre 10 anni fa | 0

Domanda


interpolation on an iregular shaped grid
hi, i have a data set off points with (x,y,z) coordinates. those points represents a sort of a path. i would like to create...

oltre 10 anni fa | 2 risposte | 0

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finding similar rows in matrices
thank you. i will try the "intersect" command. is it possible to put several commads of "ismember" one into another? can th...

quasi 11 anni fa | 0

Domanda


finding similar rows in matrices
Hi, i have several matrices that has 3 columns each, but the number of rows is not equal. im trying to find a fast way of comp...

quasi 11 anni fa | 3 risposte | 0

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Domanda


cell array conversion to numeric array
hi, i have a cell array that contains numbers and im trying to convert it to numeric array by using the 'cell2mat' command. bu...

quasi 11 anni fa | 2 risposte | 0

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Domanda


clearing memory during function runing
Hi, im runing a function that uses a lot of memory and sometimes the function stops because there is not enough memory. is it ...

circa 11 anni fa | 2 risposte | 0

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Domanda


reading text file a matrix of string
Hi, i have a large data file in which each row looks like this: 1/1/2012 00:05:00 0.45 all rows have the same format. i ...

circa 11 anni fa | 0 risposte | 0

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Domanda


labeling contour on a PDE solution
Hi, i have a solution for a pde that i got using pde toolbox. i can show the contours but i cant find a way to label them. is...

circa 11 anni fa | 0 risposte | 0

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Domanda


switching output based on input
Hi, is it possible to switch the output of a function based on the input that was given to the function? im talking about swit...

circa 11 anni fa | 1 risposta | 0

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Domanda


assembeling BC matrix after using "pdebound" (user defind matrix)
Hi, i worte a user defined function for the construction of the boundary conditions. the output of this function is 4 different ...

circa 11 anni fa | 0 risposte | 0

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Domanda


constructing a boundry matrix after using "pdebound", user defined function
Hi, i worte a user defined function for the construction of the boundary conditions. the output of this function is 4 differen...

circa 11 anni fa | 0 risposte | 0

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Domanda


explanation on boundary condition matrix
where can i find an explanation about boundary condition matrix? especially what does each row in this matrix stands for. the ...

circa 11 anni fa | 1 risposta | 0

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Domanda


get solution in spesific point in the domain after solving pde
hi, after solving pde on some domain i've created using: u=assempde(b,p,e,t,c,a,f) is it possible to extract the value in ...

circa 11 anni fa | 1 risposta | 0

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Domanda


creating a custom mesh
Hi, i have a matrix containing the nodes of my domain. i also created a matrix containing the boundry elements, each row of th...

circa 11 anni fa | 0 risposte | 0

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Domanda


how to create a custom mesh?
Hi, i have a matrix containing the nodes of my domain. i also created a matrix containing the boundry elements, each row of th...

circa 11 anni fa | 0 risposte | 0

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Domanda


is it possible to create iregulary shaped mesh grid?
Hello, is it possible to creat a non-rectangular mesh grid? lets say i have point that are aranged in a circle or any other sh...

circa 11 anni fa | 1 risposta | 0

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Domanda


how to properly use 'solve' function properly?
hi, i have the next code: %%%%%%%% syms P1 Cv CLb deadrise_angle f1 = 'CLb = P1...

oltre 11 anni fa | 0 risposte | 0

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Domanda


why do i get an error while using arcsin(x) function?
hi, im trying to use the arcsin function but i keep getting an error. when using the sin function, it works fine: sin(degtora...

oltre 11 anni fa | 2 risposte | 0

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Domanda


is there a fast working function that can find rotation angles?
is there a built in matlab function that calculats rotation angles (pith, roll , heading) between two sets of points? i did it ...

oltre 11 anni fa | 0 risposte | 0

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Domanda


how to properly use 'solve' function properly?
hi, my question might sound weired. i have this equation: x/L - 1 + (h+eta)/ho + A*log(...

oltre 11 anni fa | 1 risposta | 0

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how to use the 'solve' function?
ok it works..... thank you

oltre 11 anni fa | 0

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