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Jonathan Roy


Hydro Québec

Active since 2011

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Master Ing. student
Professional Interests: Hydrology, R&D in hydrology modelisation and Climates Changes

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Answered
How build an variable output for my function
I know it is not the best way... but I realy need to work that way. I find a solution, I use eval() an other not recommand me...

9 years ago | 0

| accepted

Question


How build an variable output for my function
Hi I have a simple function, for exemple: [ax] = testthat(x,y) I use this function a lot an need to create a differen...

9 years ago | 2 answers | 0

2

answers

Question


ActiveX -- Saving Excel File
Hi! I have an excell sheet who auto refresh data from web when I open it. I want to open the file, save it and close. I c...

9 years ago | 0 answers | 0

0

answers

Answered
how to use ksdensity as a 3D info (color) on a 2D line plot
Update, I find scatter3. <</matlabcentral/answers/uploaded_files/32817/RougeDensity.png>> It is not perfect but it do...

9 years ago | 0

| accepted

Question


how to use ksdensity as a 3D info (color) on a 2D line plot
Hi, I did a multi (500+) simulations of the same event. I plot the enveloppe of these results (see picture) <</matlabc...

9 years ago | 1 answer | 0

1

answer

Question


problem with simple "flip" function
I try this simple exemple of flip function Flip Column Vector A = [1;2;3]; B = flip(A) B = 3 2 1 an...

10 years ago | 3 answers | 1

3

answers

Question


apply "IF" condition to a matrix whitout loop
Hi! It is possible to use matrix operation power with "if" condition?? I want to apply "if" conditionto all value of the mat...

11 years ago | 1 answer | 1

1

answer

Question


multi-level indexing
Hi! I have this structure "result.pops(1:1000,1:20).obj(1:2)" I want to make addition of 2 value (obj(1) + obj(2)), of all p...

12 years ago | 1 answer | 0

1

answer

Question


input arguments of type 'struct' !?
I got this error when I call a function (Undefined function or method 'ndsort' for input arguments of type 'struct'.) I realy...

13 years ago | 3 answers | 0

3

answers

Question


read mix data from .txt file
I get my data from a txt file like this: Date Flow 1950-01-01 38.745 1950-01-02 40.243 ...

13 years ago | 1 answer | 0

1

answer

Question


Is there a more efficient way to read a .txt data file into MATLAB?
I have this .txt data file Date Tmin°C Tmax°C rain cm snow cm 1950-01-01 -22.100 -3.300 0.0...

14 years ago | 5 answers | 1

5

answers