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Tiago Dias


Last seen: 2 days ago
114 total contributions since 2017

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Question


OOBPredictorImportance How to interpret the values range?
Hello, To be able to calculate the importance of the predictors for TreeBagger it is needed to turn on the OOBPredictorImportan...

19 days ago | 0 answers | 0

0

answers

Question


Neural Networks Gradient - what is a good value?
Hello, When building neural networks with the toolbox, in the display I have a performance parameter, lower the better since it...

2 months ago | 1 answer | 0

1

answer

Answered
How to do some calculations on nonzero nonNAN elements of an array
Hello, is this what u want to do? A = [1 NaN 2 NaN;3 1 4 5] result = A(1,:) ./ A(2,:) result = 0.3333 NaN ...

2 months ago | 0

Question


Select matrix for training,testing and validation on ANN
Hello to all, completeX = [1:+1:100;2:+2:200]'; completeY = [1:+1:100]'; From my data set i divided in a specific form and I ...

2 months ago | 1 answer | 0

1

answer

Question


Radial Basis Function NN
Hello, I got my predictors 523 observations and 41 variables (523x41) and I got my response (523 observations x 1 variable). I...

2 months ago | 0 answers | 0

0

answers

Question


Find datetime in a vector
Hello, I want to find the index of two times that belong on a colum with a bunch of timedates t1 = datetime('10-09-2018 00:00:...

5 months ago | 1 answer | 0

1

answer

Question


Datetime shows month name and not number
Hello, I want to find a specific datetime in my vector full of date time in the format of (10-09-2018 00:00:00) days-month-ye...

5 months ago | 1 answer | 0

1

answer

Question


From a given vector create all combinations possible
Hello, from a given vector i want to create all possible combinations. I have the following code, a vector of [5 10 15] and I ...

6 months ago | 1 answer | 0

1

answer

Question


Artificial Neural Networks Hidden Layers
Hello, Below is my code to build a neural netword. Question 1 n defines the number of nodes in the hidden layer. How can i de...

6 months ago | 1 answer | 0

1

answer

Question


Implement Regression models in real systems
Hello, I used matlab for training and testing models (PLS, PCR, LAsso, ridge regression, and neural networks from the apps tool...

6 months ago | 1 answer | 0

1

answer

Question


How to calculate Repeatability and Reproducibility
Hello, I got a dataset X and Y. I got a PLS model, and so I got an Ypredicted, and i performed the PLS construction 50 times, ...

6 months ago | 0 answers | 0

0

answers

Question


bar chart with different width
Hi, I got a problem with my bar charts, some bar got a different width then others, for the cyan and mangent bars. I attach a p...

8 months ago | 0 answers | 0

0

answers

Answered
How to select specific legend entries for bar chart
Hi, what is extraction?

8 months ago | 0

Question


Create aditional legend on bar chart
Hello, I got a bar chart, and i want to have the bars with different colors. I would like to know if it possible to show somety...

8 months ago | 1 answer | 0

1

answer

Question


Change Colors of bar chart
Hello, I got a fig.file which is a bar chart (attached). And I want to change some bar charts to red for example, bar 4, 10 and...

8 months ago | 1 answer | 0

1

answer

Question


Turn off the dispaly of the values on Yaxis
Hello, I was wondering if it is possible to just turn off the values from 0 to 160 on Yaxis, but remaining the grid and Ticks? ...

8 months ago | 1 answer | 0

1

answer

Question


Change Width for YAxis (both) but not the grid
Hello, I want to change both YAxis Width but ax1.YAxis.Linewidth = 1.5 command doesnt work. I would like the width of both Yaxi...

9 months ago | 1 answer | 0

1

answer

Question


Lasso regression coefficient inperpretation
Hi, I got my data (predictors) and my response variable (Y_MOTOR) and I want to interpret the results when I build a Lasso mode...

9 months ago | 0 answers | 0

0

answers

Question


Lasso regression coefficients interpretation
Hello, I want to built a lasso model for my data (predictors) to predict Y_MOTOR. load('predictors.mat') load('Y_MOTOR.ma...

9 months ago | 0 answers | 0

0

answers

Question


Area under the curve in blocs
Hello, I would like to know the area under the curve in blocs from 1 to 2, 2 to 3, etc and also the total. x = [1 2 3 4 5 6 7 ...

10 months ago | 1 answer | 0

1

answer

Answered
Creating a cell and allocation specific text
Instead of { } i used now ( ) and it works. result(1,2:end) = result_aux(1,1:end);

10 months ago | 0

Question


Creating a cell and allocation specific text
Hello, My objective is to create an array cell like: result = {'Intercept','X1','X2','X3',....'X41'}, in the 1st colum I got t...

10 months ago | 3 answers | 0

3

answers

Question


Save a file inside a subfolder of a folder
Hello, In my directory I want to be able to creade a Folder, call a function do perform some calculations, and the results of t...

12 months ago | 1 answer | 0

1

answer

Answered
Change the name of structure inside a cell
@Stephen Cobeldick the objective was just when i open "stuff" to see that the column 1 is label with a specific name and column ...

1 year ago | 0

Question


Change the name of structure inside a cell
Hello, I got the cell names stuff with 2 field values. When I open "stuff" i see a message "1x1 struct", can i change this disp...

1 year ago | 2 answers | 0

2

answers

Question


Round number to just 2 decimals cases
Hi, I want to round A A = [47.1847 18.78417 8.7849 3.3514]'; B = round(A,2) C = floor(A*100)/100 so i can get result = [ 4...

1 year ago | 1 answer | 0

1

answer

Question


Histogram with values above the bars
Hello, I got data with values form 90 to 100, and i can have decimal values like 90.4 95.3. My goal is to create an histogram w...

1 year ago | 2 answers | 0

2

answers

Answered
Plot blocks of points with a specific color
This is what I did to solve my question: from a generic X = [1:25]'; Y = [1:25]'; I want to plot each number of "rows" to a ...

1 year ago | 0

| accepted

Question


Plot blocks of points with a specific color
Hi, I got these points and I want to colour every 4 points with a specific color: x = [ 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 ...

1 year ago | 2 answers | 0

2

answers

Question


Want to create colors depending on the number of columns i got in my X
Hello, i want to plot each column, and i want to associate each column with a color but automaticly. X = [1:26]'; Y = [1:26]';...

1 year ago | 1 answer | 0

1

answer

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