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Mohamed Nedal


Space Weather Monitoring Center (SWMC), Egypt

Last seen: 4 years 前 |  自 2017 起处于活动状态

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Scientific Researcher in Solar Physics.

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[Issue] How can I apply 'predictAndUpdateState' on a multivariate multistep problem?
Hello, I have this code below (also attached with data samples) of a multivariate LSTM neural network model. I am trying to ...

4 years 前 | 1 个回答 | 2

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How to improve the accuracy of LSTM network?
Hello everyone, I hope you're fine and safe I am working on forecasting time-series data using LSTM network, but the forecasti...

4 years 前 | 2 个回答 | 0

2

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提问


How can I change this single variable LSTM network to a multivariate LSTM network?
Hello, Please I want to understand how to modify this example code (also attached here): openExample('nnet/TimeSeriesForecas...

4 years 前 | 0 个回答 | 0

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提问


Problem with Multivariate LSTM Forecasting
Hello, Kindly check the attached code with a data workspace example. I would like to implement an LSTM network that forecast...

4 years 前 | 0 个回答 | 0

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提问


What is the corresponding XTickLabel for the time (t) in this code?
time_axis = ['13:45' '13:46' '13:47' '13:48' '13:49' '13:50' '13:51' '13:52' '13:53' '13:54' '13:55' '13:56' '13:57'...

5 years 前 | 0 个回答 | 0

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How to adjust the time digits in this code?
Hello, I wrote the following code to create a time vector between 13:45 and 14:15 with one minute step. t1 = datetime(2016,5,...

5 years 前 | 1 个回答 | 0

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提问


How to convert these char values to datetime format?
Hello everyone, I tried to do this operation to get the duration between both datetimes as follows: % starting date-time d...

5 years 前 | 1 个回答 | 0

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提问


How to make predictions using an already-trained LSTM model?
Hello everyone, I have the attached example LSTM code with the data file (omni.txt: hourly data). I would like to know how t...

5 years 前 | 3 个回答 | 0

3

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提问


How to implement LSTM Time-series prediction using multi-features?
Hello everyone, I have the attached code and the attached data file here. I want to modify that code to proceed time-series pr...

5 years 前 | 1 个回答 | 0

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提问


How to match two matrices based on two keys?
Hello everyone, Kindly find the attached file. I would like to know how to match these matrices based on two keys rather than ...

5 years 前 | 1 个回答 | 0

1

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提问


How to delete a matrix using for loop and if condition?
Hello everyone, I have two sets of matrices, Matrices A and Matrices B, so that there are MA1, MA2, MA3 ..., MA100 and M...

5 years 前 | 1 个回答 | 0

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提问


How to separate each month of this file?
Hello everyone, Kindly find the attached files (1 data file + 1 description file). The data file represents data for the who...

5 years 前 | 1 个回答 | 0

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提问


How to create subplots of findchangepts function?
Hello everyone, I'm trying to plot several findchangepts plots as subplots in a single figure. I found it can't be done unfort...

5 years 前 | 2 个回答 | 0

2

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提问


How to detect variations in data?
Hello everyone, I would like to determine the location at which there is data variation (like the highlighted points in the at...

5 years 前 | 2 个回答 | 0

2

个回答

提问


How to extract sub-matrices from a big matrix?
Hello everyone, I have two matrices, kindly find the attached file soho ---> size = 23×12 , each row represents an event. ...

5 years 前 | 1 个回答 | 0

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提问


How to loop over a customized function?
Hello everyone, I wrote a function and I would like to use it on many data at once, so I tried to use the function inside a fo...

5 years 前 | 1 个回答 | 0

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提问


How to change the time format from AM/PM to UT?
Hi everyone, Here's what I've tried t = {'12:24:05' '10:36:05' '04:07:55' '01:25:51' '01:48:05'}; t_final = datetime(t...

5 years 前 | 1 个回答 | 0

1

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提问


How to split column of a table?
Hello everyone, I want to split a multi-column of a table into several columns and I tried to use newtable = splitvars(tbl);...

5 years 前 | 1 个回答 | 0

1

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提问


How to integrate this function numerically?
Hello everyone, I'm stuck at this equation and I want to integrate it numerically where and r = 695510, a = -0.0021, ...

5 years 前 | 1 个回答 | 0

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已回答
Marking where one clicked with ginput
Hi, when I use imagesc() function with plot() function it doesn't display the dots on the image shown by imagesc(). In this ca...

5 years 前 | 0

提问


How to store different NN topologies using For loop?
Hello everyone, This is a feedforward backbropagation neural network model for predicting the parameter (t). Basically, the co...

5 years 前 | 0 个回答 | 0

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提问


How to perform for-loop over sequential arrays?
Hi, I have a set of arrays stored in the workspace (X1, X2 ..., Xn) and (Y1, Y2, ..., Yn) and I would like to perform a "for loo...

5 years 前 | 1 个回答 | 0

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提问


How to separate each day of this file?
Hello, Kindly find the attached text file. It contains data for the entire January 2014. Each row represents a data record p...

6 years 前 | 1 个回答 | 0

1

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提问


How to match Y with X?
Hello, I have a matrix (X) and another one (Y) and I was trying to match each row in Y with its counterpart in X so that: Y si...

6 years 前 | 1 个回答 | 0

1

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提问


How to match two different matrices
Hello, I have two matrices of different lengths and this is what the scenario looks like .. x = [...]; y = [...]; si...

6 years 前 | 1 个回答 | 0

1

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已回答
find local maxima and local minima
For Max, you can use findpeaks() function. And for Min, it's the same function but with negative data (i.e. -x).

7 years 前 | 0

提问


How to plot a globe mesh with data located on it
Hello, I want to plot a globe mesh like this image: <</matlabcentral/answers/uploaded_files/79843/globe.gif>> with data p...

7 years 前 | 2 个回答 | 0

2

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提问


What is the alternative of xtickformat() in the R2015a version?
Hello, I was trying this code on the version R2015a: t = 0:seconds(30):minutes(3); y = rand(1,7); plot(t,y) x...

7 years 前 | 1 个回答 | 0

1

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已回答
How do I label the bars in my histogram?
Hello, I tried it but I got this error: Error using text Value must be a column or row vector Error in Hist_long...

7 years 前 | 0

提问


What's the corresponding function to "xtickformat" in Matlab R2015a?
Hello, I want to use the function: xtickformat('hh:mm') in Matlab R2015a, but it told me: Undefined function or ...

7 years 前 | 1 个回答 | 0

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