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Tiago Dias


Last seen: 3 months ago
119 total contributions since 2017

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Question


Support Vector Machine: Linear or Non-linear
Hi, I have a doubt on SVM. SVM is a linear or non-linear method, or it depend on the type of kernel i am using. If i am usin...

4 months ago | 1 answer | 0

1

answer

Question


Aid with Intercepter Latex for Xlabel
Hi, It is possible to put the horizontal line above all letters of "KPI", i wanted to placed the symbol for the mean(KPI). Is t...

4 months ago | 1 answer | 0

1

answer

Question


What is the difference form using TreeBagger and Fitrensemble functions
Hi, I am wondering what is the difference between (1) and (2). I am trying to construct a predictive model, and I don't underst...

6 months ago | 1 answer | 0

1

answer

Question


How to remove the Range from colorbar in HeatMap
Hello to all, I wanted to place in the legend only the number 0 (red), 1 to yellow and 2 to green, I dont want to range from ...

9 months ago | 1 answer | 0

1

answer

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...

10 months ago | 1 answer | 0

1

answer

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...

11 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 ...

11 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 ...

11 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...

11 months ago | 1 answer | 0

1

answer

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:...

1 year 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...

1 year 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 ...

1 year 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...

1 year 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...

1 year 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, ...

1 year 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...

1 year ago | 0 answers | 0

0

answers

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

1 year 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...

1 year 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...

1 year 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? ...

1 year 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...

1 year 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...

1 year 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...

1 year 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 ...

1 year 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);

1 year 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...

1 year 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...

1 year 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 ...

2 years 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...

2 years 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...

2 years ago | 1 answer | 0

1

answer

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