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Ahmed Abdulla


Last seen: 2 years 前 |  自 2019 起处于活动状态

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统计学

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 2 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 0 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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...

3 years 前 | 1 个回答 | 0

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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...

3 years 前 | 1 个回答 | 0

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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...

3 years 前 | 1 个回答 | 0

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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...

3 years 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 3 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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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 前 | 1 个回答 | 0

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