NN
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67 total contributions since 2019
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Question
NPN Bipolar Transistor Characteristics
In the matlab example , NPN Bipolar Transistor Characteristics https://www.mathworks.com/help/physmod/sps/ug/npn-bipolar-trans...
3 dagar ago | 1 answer | 0
1
answerQuestion
Importing data rom matlab to simulink
Hi , When i import time series data from matlab to simulink,it appears as individual data not as corresponding to time.(image ...
4 dagar ago | 0 answers | 0
0
answersQuestion
Please advice how to convert date array to seconds format
here by attaching date formats and their respective code, kindly advice how can i convert it to seconds form as attached.. ...
5 dagar ago | 0 answers | 0
0
answersQuestion
What does the "X/R ratio " checkbox signify in the Three-Phase Source block in SimPowerSystems?
What does the "X/R ratio " checkbox signify in the Three-Phase Source block in SimPowerSystems? By default it is 7, what is its...
6 dagar ago | 1 answer | 0
1
answerQuestion
Load flow and machine initialization are not working
Hi, In this below example, https://www.mathworks.com/help/physmod/sps/ug/emergency-diesel-generator-and-asynchronous-motor.h...
10 dagar ago | 0 answers | 0
0
answersQuestion
synchronous machine _maximum power capacity
Synchronous machine -Swing bus -3.125MVA , active power =0 is initialised and connected to resistive load 2.5MW.It generates 2....
11 dagar ago | 0 answers | 0
0
answersQuestion
Power generated by Diesel Generator _Clarification
Hi With respect to the Matlab example , https://www.mathworks.com/help/physmod/sps/ug/24-hour-simulation-of-a-vehicle-to-grid...
13 dagar ago | 0 answers | 0
0
answersQuestion
Machine initialization_Diesel generator
Hi, I want to model an islanded microgrid concept with diesel generator with loads, so after doing load flow/machine initializ...
14 dagar ago | 0 answers | 0
0
answersQuestion
Doubt regarding the example 'Emergency Diesel-Generator and Asynchronous Motor'
In the matlab example below, https://www.mathworks.com/help/physmod/sps/ug/emergency-diesel-generator-and-asynchronous-motor.ht...
15 dagar ago | 0 answers | 0
0
answersQuestion
Simulink_PV block not working if not grid connected
I used P V models from the example microgrid library.slx which i downloaded from resources file of mathworks example 'https://...
18 dagar ago | 0 answers | 0
0
answersQuestion
Appropriate data structure for using predictand update state for LSTM
Hello I am trying to fit a LSTM network for forecast time series data using using the example on this help-page i.e with the t...
ungefär en månad ago | 1 answer | 0
1
answerQuestion
subtract two matrices of sizes [1*5] and [3*5]
I need to subtract m from y , m= [1 2 3 4 5 ] y=[ 10 11 12 13 14 9 8 7 6 5 15 16 17 18...
ungefär en månad ago | 1 answer | 0
1
answerQuestion
To find the rows of data that have the same minimum and maximum values, and remove the rows.
I need to remove the rows that have same minimum and maximum values , below is the code used . but it gives error: Unable to p...
ungefär en månad ago | 0 answers | 0
0
answersQuestion
stacked LSTm Code for time series forecasting
Can anyone guide me how to write code for stacked lstm in the below code: layers = [ ... sequenceInputLayer(numFeatures) ...
ungefär en månad ago | 2 answers | 0
2
answersQuestion
normalisation and reverse process _Forecasting _mean standard deviation
I am getting different rmse value for forecasted value for almost similar look plots. please check the attached plot . First o...
ungefär 2 månader ago | 1 answer | 0
1
answerQuestion
normalising and reverse normalising data
For forecasting , I normalised the data before training for test and train data , then when i plot the rmse , i get rmse 0.2.bu...
ungefär 2 månader ago | 1 answer | 0
1
answerQuestion
Regression learner error in matlab code
When i use yfit = trainedModel.predictFcn(cartable) to test for Test data using regression learner , i am getting the below e...
ungefär 2 månader ago | 0 answers | 0
0
answersQuestion
PCA_Principal component analysis -Dimension reduction
I tried to apply PCA for neural network study .For training and testing data, i used the below syntax and given the output of pc...
ungefär 2 månader ago | 1 answer | 0
1
answerQuestion
how can i standardise the elements in a matrix
I want to standardie the elements in a 9*576 double matrix (pn) in matlab. I use the below code, but i dont get the same dimen...
ungefär 2 månader ago | 0 answers | 0
0
answersQuestion
Principal Component Analysis (PCA) in matlab
Hi, I am trying to do neural network forecasting of data and i would like to apply PCA to the input data (both testing and tr...
ungefär 2 månader ago | 1 answer | 0
1
answerQuestion
Converting and plotting serial number to time format [hh:mm]
I have a data with client number and parking time for EV charging station.The data is loaded in xlsx format. Please find the bel...
2 månader ago | 1 answer | 0
1
answerQuestion
How to plot time in excel for 24 hours duration , and not as serial numbers
Please help to plot the attached data.xlsx (time ) in excel to the required 24 hour format.
2 månader ago | 1 answer | 0
1
answerQuestion
Plot time on x axis for 24 hours duration
How can i plot my data against time on x axis which is 24 hours duration split every two hours. Sample has been attached here. ...
2 månader ago | 1 answer | 0
1
answerQuestion
Custom use of Softmax activation function in LSTM MAtlab for Solar forecasting
How can i use softmax activation function in the below code?What changes should i make? With this code i am getting RMSE 8.6.Ho...
2 månader ago | 1 answer | 0
1
answerQuestion
How can i load solar data for forecasting as a raw vector in matlab ?
Hi, i have a dataset for solar irradiance and attaching here .How can i load this irradiance data in matlab as a single raw v...
2 månader ago | 1 answer | 0
1
answerQuestion
When i tried to change the training function in nntrain , from trainlm to traindx, i get the error :
When i tried to change the training function in nntrain , from trainlm to traindx, i get the following error : Error using fi...
3 månader ago | 1 answer | 0
1
answerQuestion
How to plot forecasted data with corresponding dates
I am trying to do ANN load forecasting. Finally, when I plot actual and modelled output, some problem is with the date. It shows...
3 månader ago | 2 answers | 0
2
answersQuestion
How can i unnormalize the forecasted system load outputs in Neural Networks in Matlab
I normalised and unnormalised training and test data as mentioned below and hwo can i unnormalise the forecased output to the sc...
3 månader ago | 1 answer | 0
1
answerQuestion
How can i plot multiple plots with respect to date in matlab for forecasting problem ?
How can i plot multiple plots with respect to date in matlab for forecasting problem ? i used , fitPlot(testdates, [target_tes...
3 månader ago | 1 answer | 0
1
answerQuestion
How can i plot multpile plots for Neural network forecasted ouput and input in matlab ?
How can i plot multpile plots for Neural network forecasted ouput and input in matlab ? the below code gives error, as it c...
3 månader ago | 0 answers | 0
0
answers
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