# Agnese Chini

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**Content Feed**

Question

How I make a better pre-processing for machine learning?

Hi! I have a data set with different features of data (size 1950x22). With this I have to develop an algorithm through machine l...

6 months ago | 0 answers | 0

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answersQuestion

How can I replace the value of an outlier rather than delete it?

Hi! I have used this method to find and eliminate the outliers from a gaussian feature of my data set: figure; plot(Fetal_tabl...

7 months ago | 1 answer | 0

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answerQuestion

How do I confront the outliers from two different methods?

Hi! I have used two different methods to remove outliers from a certain data set. Here they are below: %Grubb's test figure; ...

7 months ago | 0 answers | 0

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answersQuestion

How I change the name of the variables in a table?

Hi! I have a table like that: Movement_Table = table(Fetal_table.fetal_movement, Fetal_table_tot.r_prolongued_decelerations, F...

7 months ago | 1 answer | 0

### 1

answerQuestion

How I categorize a features?

Hi! I have a dataset like the histogram here: with some data around 0, some other around 1, 2, 3, 4 and 5. I would like to mak...

7 months ago | 2 answers | 0

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answersQuestion

How do I confront the value of a matrix?

Hi, I have a matrix 21x6 I have for rows 16:20 confront the column: for example for the first rows to analyze: (ROW 16) (Co...

1 year ago | 1 answer | 0

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answerQuestion

How do I find the instersection on my plot?

I have a plot with the errorbar. The data coming from a matrix 21x6 and the errorbar from another matrix. I need to find where (...

1 year ago | 1 answer | 0

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answerQuestion

How do I draw a horizontal line at a fixed height on the y axis and print the coordinates of the points I intercept?

Hi, I have a matlab plot with 6 curves (or functions). My y-axis ranges from 0 to 255. My x-axis ranges from -20 to 20. How ...

1 year ago | 1 answer | 0

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answerQuestion

How do I change the values of the axes?

Hi I have this plot: figure; errorbar(y,e,'-o') legend('Cist -9dB', 'Cist -6dB', 'Cist -3dB', 'Cist 3dB', 'Cist 6dB', 'Cist 9d...

1 year ago | 1 answer | 0

### 1

answerQuestion

How do I put the errorbar in the plot?

Hi, I have this program: My program analyzes 21 different images and crops (for each image) 6 ROIs. The ROIs are cropped from ...

1 year ago | 1 answer | 0

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answerQuestion

How to change the plot on the matrix?

I have a matrix 6x21, when I plot figure; plot(matrix);hold on This makes a plot with 21 curves, just like this: But I wa...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to plot a linear fit (or Ordinary Least Squares)?

Hi, I have to analyze some data and put them in a graphics. I have a matrix with the mean and another one (with the same size)...

1 year ago | 0 answers | 0

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answersQuestion

How I plot a matrix wich each rows is a different curves on the graph?

Hi, I have a 6x21 matrix. I want to plot it in one single graph in wich each rows is a different curves.

1 year ago | 1 answer | 0

### 1

answerQuestion

How can I make a better plot?

Hi, I have 5 sets of data and I want to write a script that reads my 5 matrices (1x21 double) and displays a single figure that ...

1 year ago | 1 answer | 0

### 1

answerQuestion

How can I plot 5 different variable all together?

Hi, my variable all have this form: A = [18, 20, 50, 60, ...] They all have the same size 1x21 double and they are five. Ho...

1 year ago | 1 answer | 0

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answerQuestion

How can I save a variable from the workspace to use it for another script?

Hi, I want to save this variable for use that (and other one) in a brand new script

1 year ago | 1 answer | 0

### 1

answerQuestion

How can I repeat the same algorithm from different folders?

Hi, I have this algorithm which works perfectly. However, it only reads one folder at a time and graphs me only one curve at a t...

1 year ago | 1 answer | 0

### 1

answerQuestion

How do I plot together 5 different arrays?

Hi, I have 5 different arrays from different script of matlab. Who do I save this 5 arrays (the values in the array are foundame...

1 year ago | 1 answer | 0

### 1

answerQuestion

How do I create a matrix with specific values?

Hi, I have a matrix (6x21) whose values are those found experimentally. Let's call it: expbasket I want to calculate the erro...

1 year ago | 1 answer | 0

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answerQuestion

How I sum to matrix wich one is the mean of the value and the other the standard deviation?

you certainly know that a value in order to be defined correctly it must be defined by its mean plus or minus its standard devia...

1 year ago | 1 answer | 0

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answerQuestion

How to plot the value of a matrix?

Hi, I have a matrix 7x21 double, there is a way to plot the result with this imput: x axis: the columns y axis: the rows

1 year ago | 1 answer | 0

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answerQuestion

How to compare the values of the same matrix?

I have a matrix 7x21 double. I need to compare each element of one column with each element of the remaining columns. By compare...

1 year ago | 0 answers | 0

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answersQuestion

How can I check if the columns of my matrix have value in common?

Hi, I have a basic problem. I have a matrix 7x21 double and I want to compare each column with the others. I want to understan...

1 year ago | 3 answers | 0

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answersQuestion

How do I compare the values of a matrix?

Hi there, this is my really complex code. With the matrix named as meanbasket, wich is a matrix 21x7 I have to check when a valu...

1 year ago | 1 answer | 0

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answerQuestion

How do I create a matrix that has as values the averages of variables found in loops?

My program analyzes a reference image: named '21', then cut out two ROIs from this image and save their coordinates. Then to the...

1 year ago | 1 answer | 0

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answerQuestion

Who do I read different images from my disk?

My program have to read an image has a reference, then take 7 frehand ROIs of it, and then with the same coordinates crop the sa...

1 year ago | 1 answer | 0

### 1

answerQuestion

How do I save the coordinates that I find freehand

Hi there, i'm almost new in Matlab and I have a really big question: I have 21 images. Taking the last of these images as a re...

1 year ago | 1 answer | 0