# Ahmed Abdulla

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Question

Interpolate points between two coordinates

I have the coordinates of points A and B, and I would like to obtain the coordinates of N number of points between A ans B if co...

2 years ago | 1 answer | 0

### 1

answerQuestion

Use line design parameters to obtain coordinates

hi everyone, I would like to obtain the coordinate points that would produce the line in black in my image, given that I have R,...

2 years ago | 1 answer | 0

### 1

answerQuestion

Use workspace variable in equation solver

I have the equation x+y=25 and currently I have y as a predfined variable=5. so the equation becomes x+5=25. However I would lik...

2 years ago | 2 answers | 0

### 2

answersQuestion

Identify wing aileron deflection

I am using AID toolbox on matlab, i want to define two wings with two sets of ailerons. By default i can add deflection to t...

2 years ago | 1 answer | 0

### 1

answerQuestion

parallel pool to increase code speed

I have a very long code that uses a lot of functions which I have written, currently the code takes around 3 minutes to run. I h...

2 years ago | 1 answer | 0

### 1

answerQuestion

Dot Product of Rows in array

I have two arrays, A of size 1000x2 and B of size 1000x2. I would like to get dot product of the each set of rows so that the re...

2 years ago | 1 answer | 0

### 1

answerQuestion

Boundary detection using Machine/Deep learning

I have the following x and y points that make a shape, however the points are not in order and when using a line plot all the li...

2 years ago | 0 answers | 0

### 0

answersQuestion

Find identical rows in matrices

I have matrix A (1000x3) and matrix B (1200x3), is there an easy way to know what rows of matrix A already exist in Matrix B. An...

2 years ago | 1 answer | 0

### 1

answerQuestion

Order Points for plotting

I have the coordinates of the above two shapes imported from a CAD software, however when I plot the shape the points are not in...

2 years ago | 1 answer | 0

### 1

answerQuestion

Drag bar input form

Hi everyone, I havent seen this before and dont know if its possible. I have an image in 2d array format where the values in t...

2 years ago | 1 answer | 0

### 1

answerQuestion

Delete files with a specific string

In my directory I have 1000's of files, however some files are not needed and they all have the string "Yes_" in their file name...

2 years ago | 1 answer | 0

### 1

answerQuestion

Divide array into 3 parts

I have a matrix of size (N,3), where I want to divide this matrix into 3 matrices where matrix 1 is 70% of N, matrix 2 is 15% of...

2 years ago | 1 answer | 0

### 1

answerQuestion

Setting Neural network training dataset

I am aware that we can use the lines of code bellow to set the percentages of the dataset to be used for training, testing and v...

2 years ago | 1 answer | 0

### 1

answerQuestion

Colour changes from figure to png upon export

Hi everyone, I am generating a plot using the code below where the lines plotted in the loops are in white and with a width of 0...

3 years ago | 1 answer | 0

### 1

answerQuestion

Change the range of an array

i have a 50x50 matrix with a maximum value of 1000 and a minimum of 200. I am looking for a way to increase the minimum to 350 a...

3 years ago | 3 answers | 0

### 3

answersQuestion

oversampling an array randomly

I have an array that contains 300 observations, and i would like to oversample this array to 472 observation. but i would this t...

3 years ago | 1 answer | 0

### 1

answerQuestion

set training to validation ratio

I have been using fitrensemble (gradient boosting - LSBoost) to find a model that fits my dataset, however I was wondering if an...

3 years ago | 1 answer | 0

### 1

answerQuestion

Machine learning gradient boosting

I am new to the concept of gradient boosting, I would appreciate any links that can lead me to MATLAB implentations/examples/fun...

3 years ago | 1 answer | 0

### 1

answerQuestion

Finding the vertical offset of a gaussian fit

I apologize for posting this question again, as I believe I miss presented my question earlier. I have the following data poi...

3 years ago | 1 answer | 0

### 1

answerQuestion

Obtaining the Gaussian equation for a distribution

I have attached a picture where i have the points in red (array of x and y values) and I would like to fit those points using a ...

3 years ago | 1 answer | 0

### 1

answerQuestion

Command to import column vectors

I am importing .csv files into matlab and usually I just specify the output type to column vectors(as shown in the picture), I w...

3 years ago | 1 answer | 0

### 1

answerQuestion

Evaluate integral at specific value

I have the following mathematical function f=5sin(x), I use the int(f) to obtain the integral of my expression. Is there a way f...

3 years ago | 1 answer | 0

### 1

answerQuestion

non continuous double integration

I am looking to integrate the following function 5sin(x) dx dy, however I am only aware of performing integrals for specific upp...

3 years ago | 1 answer | 0

### 1

answerQuestion

Accessing .cdf files

I have downloaded some space science data from the following link,however, the file format is .cdf and I have no experience with...

3 years ago | 1 answer | 0

### 1

answerQuestion

Out of memory problem

Im running a code that deals with large datasets and i've made it as efficient as i possibly can by deleting any variables that ...

4 years ago | 1 answer | 0

### 1

answerQuestion

Obtaining the standard normal z score

Is there an easy way to obtain the standard normal z score with an upper tail probability of 0.05/2 or any number at hand

4 years ago | 1 answer | 0

### 1

answerQuestion

Acquiring blocks of data

I have a 100x100 matrix (Matrix A) and ive been trying to get a matrix B. Where each cell in matrix B contains an array of all t...

4 years ago | 1 answer | 0

### 1

answerQuestion

Returning values from Blockproc

I used the following code to calculate the mean of blocks of data(compress down my matrix), but i was wondering if there is a wa...

4 years ago | 1 answer | 0

### 1

answerQuestion

Setting color to text from a colormap

I have generated the following figure, the numbers are the correlatios from the scatter plot, i was thinking of changing the col...

4 years ago | 1 answer | 0

### 1

answerQuestion

Suggestions on how to generate a mask

I have a matrix that is 1440x2880 of remote sensed temperatures from satallites, i was wondering if there is any way that i can ...

4 years ago | 1 answer | 0