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Tiago Dias


109 total contributions since 2017

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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:...

3 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...

3 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 ...

4 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...

4 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...

4 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, ...

4 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...

5 months ago | 0 answers | 0

0

answers

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

5 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...

5 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...

5 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? ...

5 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...

6 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...

7 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...

7 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 ...

7 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);

7 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...

7 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...

9 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 ...

11 months 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...

11 months 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...

11 months 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...

11 months 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 ...

12 months 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 ...

12 months 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]';...

12 months ago | 1 answer | 0

1

answer

Question


Resize a matrix into another with different size
Hello, i got a matrix X and I want to transform X into a matrix rows x collumns, in this case into a 4 by 7 matrix. I used resha...

12 months ago | 3 answers | 0

3

answers

Question


Create an annotation into a plot
Hello, When i create an annotation into a plot to show me a specific value that I have previously calculated, in the plot it ...

12 months ago | 1 answer | 0

1

answer

Question


Save a plot from a function in a structure and save the structure
Hi everyone. I created a function to perform pca calculations and to plot some specific plots, like loadings and scores. t...

1 year ago | 1 answer | 0

1

answer

Question


Xlabel & Ylabel just in 1 line
Hi, My goal is to label Xaxis and Yaxis in just one line rather in two, that is what i get. my xlabel and ylabel are combi...

1 year ago | 1 answer | 0

1

answer

Question


How to create an array with the same letter but different number
Hi, How can I create an array or cell, something like Variable = {'X1','X2','X3',...,'X43'}? when i give for example the len...

1 year ago | 2 answers | 0

2

answers

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