# Tiago Dias

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**Content Feed**

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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 ...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

3 years ago | 1 answer | 0

### 1

answerHow 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 ...

3 years 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 ...

3 years ago | 1 answer | 0

### 1

answerQuestion

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...

3 years ago | 1 answer | 0

### 1

answerQuestion

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:...

3 years ago | 1 answer | 0

### 1

answerQuestion

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...

3 years ago | 1 answer | 0

### 1

answerQuestion

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 ...

3 years ago | 1 answer | 0

### 1

answerQuestion

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...

3 years ago | 2 answers | 0

### 2

answersQuestion

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...

3 years ago | 1 answer | 0

### 1

answerQuestion

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, ...

3 years ago | 0 answers | 0

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answersQuestion

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...

3 years ago | 0 answers | 0

### 0

answersHow to select specific legend entries for bar chart

Hi, what is extraction?

3 years ago | 1

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...

3 years ago | 1 answer | 0

### 1

answerQuestion

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...

3 years ago | 1 answer | 0

### 1

answerQuestion

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? ...

3 years ago | 1 answer | 0

### 1

answerQuestion

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...

3 years ago | 1 answer | 0

### 1

answerQuestion

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...

3 years ago | 0 answers | 0

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answersQuestion

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...

3 years ago | 0 answers | 0

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answersQuestion

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 ...

3 years ago | 1 answer | 0

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answerCreating a cell and allocation specific text

Instead of { } i used now ( ) and it works. result(1,2:end) = result_aux(1,1:end);

3 years 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...

3 years ago | 3 answers | 0

### 3

answersQuestion

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...

3 years ago | 1 answer | 0

### 1

answerChange 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 ...

4 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...

4 years ago | 2 answers | 0

### 2

answersQuestion

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...

4 years ago | 1 answer | 0