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# Tiago Dias

##### Last seen: 4 meses 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...

5 meses ago | 1 answer | 0

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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...

6 meses ago | 1 answer | 0

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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...

7 meses ago | 1 answer | 0

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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 ...

10 meses ago | 1 answer | 0

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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...

11 meses ago | 1 answer | 0

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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...

12 meses ago | 1 answer | 0

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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 ...

alrededor de 1 año 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 ...

alrededor de 1 año ago | 1 answer | 0

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Question

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

alrededor de 1 año ago | 1 answer | 0

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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:...

más de 1 año ago | 1 answer | 0

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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...

más de 1 año ago | 1 answer | 0

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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 ...

más de 1 año ago | 1 answer | 0

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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...

más de 1 año ago | 2 answers | 0

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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...

más de 1 año ago | 1 answer | 0

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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, ...

más de 1 año ago | 0 answers | 0

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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...

más de 1 año ago | 0 answers | 0

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

más de 1 año 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...

más de 1 año ago | 1 answer | 0

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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...

más de 1 año ago | 1 answer | 0

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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? ...

más de 1 año ago | 1 answer | 0

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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...

más de 1 año ago | 1 answer | 0

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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...

más de 1 año ago | 0 answers | 0

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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...

más de 1 año ago | 0 answers | 0

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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 ...

más de 1 año ago | 1 answer | 0

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

más de 1 año 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...

más de 1 año ago | 3 answers | 0

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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...

casi 2 años ago | 1 answer | 0

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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 ...

casi 2 años 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...

casi 2 años ago | 2 answers | 0

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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...

casi 2 años ago | 1 answer | 0