Professional Interests: Civil and structural engineering

Question

How to fit a line through this data "smartly" ?

I have the x-y data shown in the figure below (for the curious, it is the logarithm of the amplitude of a Hilbert transform). ...

3 mois ago | 3 answers | 0

Answered

image(x,y,A) fails on log axis depending on axis's limits

From the MATLAB Technical Support: ------------------------------------------------------------------------------------------...

image(x,y,A) fails on log axis depending on axis's limits

From the MATLAB Technical Support: ------------------------------------------------------------------------------------------...

environ un an ago | 0

| accepted

Question

Apply function (str2double) to each element in a timetable

Hi I have a timetable where some numeric fields are stored as strings and other as 1x1 cell arrays of strings (of char array ...

environ un an ago | 1 answer | 0

Solved

Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

environ un an ago

Question

slicing an M-by-N-by-3 matrix using an M-by-N matrix of logical values

Hi everybody I have an RGB image as a MxNx3 matrix. I would like to slice it using an MxN matrix of logic values (one for ...

environ un an ago | 2 answers | 0

Question

image(x,y,A) fails on log axis depending on axis's limits

Hi The question is pretty much self explanatory given the following example The following code *works*: figure A = r...

environ un an ago | 2 answers | 1

Question

New instance of matlab opening every time I double click a matlab file

Hi Every time i double click a matlab file (*.m, *.mat or *.fig) in an explorer windows, a new MATLAB instance starts, even if ...

plus d'un an ago | 1 answer | 2

Question

Interactive GUI Patch/Tessellation

Hi everybody I'm trying to design a GUI where the user is able to draw a series of connected patches (a tessellation) over a ...

plus d'un an ago | 0 answers | 0

Question

MinGW add-on installation fails

Hi I'm trying to install MinGW to compile a .c file. I'm using the Add-Ons menu as suggested by https://it.mathworks.com/help...

plus d'un an ago | 2 answers | 3

Solved

calculate PI without using pi function

There are many methods to get the pi(Ratio of circumference to diameter). You should get pi without using the pi function in M...

plus d'un an ago

Question

Get maximum number of outputs from anonymous function

Hi everybody. I would like to call a function from within another function. The problem is that i don't know a-priori the numbe...

plus d'un an ago | 2 answers | 0

Submitted

tabbedFigure(parentFig,tabName,source)

Creates a new tabbed figure window or adds a new tab to an existing one.

plus d'un an ago | 0 downloads |

Question

Neural network with time-history input

Hi everybody I would like to create a NN with a time-history as input and a single value as output How can I do it? than...

environ 2 ans ago | 1 answer | 0

Question

Find estimator for bivariate distribution

Hi I have a set of Joint Probability Density Functions obtain from some sets of data. I would like to find the "best fitting li...

environ 2 ans ago | 0 answers | 0

Question

Equivalent of [C{:}] for vertcat

To concatenate horizontally the content of a cell array we can use the very practice syntax [C{:}]. For example: A = {(1:3)...

plus de 2 ans ago | 4 answers | 1

Question

Compute that portion of a surface above a threshold

Hi. I have a variable Z define over a grid of points X,Y. I would like to compute the area of my domain where Z>threshold. ...

plus de 2 ans ago | 1 answer | 0

Question

CurrentCharacter properties not working as expected

Hi everybody. if I run the code h=figure; h.CurrentCharacter=char(i); disp(double(h.CurrentCharacter)) for i=1,...

plus de 2 ans ago | 1 answer | 0

Question

Pause until a figure close OR a button is pressed

Hi. In the middle of my script I ask the user to zoom a figure and call ginput afterwards. I would like to interrupt (return)...

plus de 2 ans ago | 1 answer | 0

Question

Create a nested structure using a variable as field name

Hi everybody Lets say that I have a variable path='\levelOne\levelTwo\levelThree' of which *I don't know the number ...

plus de 2 ans ago | 1 answer | 0

Question

Save changes to class properties with dot notation

Let's say I have a simple class like this one: classdef MyData properties Data = 0; end methods ...

plus de 2 ans ago | 1 answer | 0

Submitted

uiselectobject

ask the user to select an object of the specified type

environ 3 ans ago | 0 downloads |

Submitted

defaultValue - set default value for optional arguments

Assigns default value to funtion optional input variable

environ 3 ans ago | 0 downloads |

Submitted

Plot persistent vertical and horizontal line

Draws a horizontal or vertical line that persists through pans and zooms

environ 3 ans ago | 0 downloads |

Question

GUI - set a object to be selectable or not

Hi everybody. I have a GUI (programmatically created) with an axis in it. I would like to have the zoom/datatip/select comman...

plus de 3 ans ago | 1 answer | 0

Question

Script vs Function with no input/output

Sometimes I have to write a function ad-hoc for a script purpose. Usually I was simply creating a new .m file containing the fun...

plus de 3 ans ago | 1 answer | 0

Question

Insert NaNs (or any value) in several position of a vector

Hi i have a vector like this a=[1 2 3 5 6 7 9 10 13 14]; I would like to find where the diff is bigger than a value (le...

plus de 3 ans ago | 2 answers | 0

Question

MATLAB from command line - Cannot find script in the current direcoty

Hi, I just installed Matlab on a Linux machine that doesn't have the X server. Therefore I launch matlab using the -nojvm -nod...

presque 4 ans ago | 1 answer | 0

Question

GUI / GUIDE - Ask to select a line

Is it possible to ask user to select a line during the execution of a GUI? I would like a popup to appear asking "please sele...

presque 4 ans ago | 1 answer | 0

Answered

finding Missing elements in a vector

This will do the trick P(~(P==1:length(P))) just for clarification P==1:length(P) returns a logical array of th...

finding Missing elements in a vector

This will do the trick P(~(P==1:length(P))) just for clarification P==1:length(P) returns a logical array of th...

presque 4 ans ago | 0

| accepted