Question

What is the difference between Optimproblem and linprog

Please help, The below syntax creates a linear optimisation problem ? prob = optimproblem What is the difference of this abo...

4 meses ago | 2 answers | 0

Question

How battery energy is calculated in Microgrid Energy Management System (EMS) using Optimization

Can some one please explain how the battery energy is calcuated in the matlab example file, https://www.mathworks.com/matlabcen...

4 meses ago | 1 answer | 0

Question

Plot data against time

Hi, Kindly help to plot this workspace data , first column is formatted date and secnd column data against the date:Original da...

4 meses ago | 1 answer | 0

Question

how can I initialize two diesel generators in parallel in MATLAB ?

As detailed in the link below:, can i connect two diesel generators connected in parallel sharing load?What chaneg should i make...

4 meses ago | 0 answers | 0

Question

How can i plot two columns in different colors in MATLAB

can someone suggest me how to plot 2nd and 3 rd column in x axis in differnt colors as scatter plot against the 1st column...

4 meses ago | 1 answer | 0

Question

Convert date from number to format in matllab

I have original time and date format as mentioned below: 2/17/2020 9:48:18 AM I did forecasting using this , and after foreca...

5 meses ago | 1 answer | 0

Question

NPN Bipolar Transistor Characteristics

In the matlab example , NPN Bipolar Transistor Characteristics https://www.mathworks.com/help/physmod/sps/ug/npn-bipolar-trans...

5 meses ago | 1 answer | 0

Question

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 ...

5 meses ago | 0 answers | 0

Question

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 meses ago | 0 answers | 0

Question

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...

5 meses ago | 1 answer | 0

Question

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...

5 meses ago | 0 answers | 0

Question

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....

5 meses ago | 0 answers | 0

Question

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...

5 meses ago | 0 answers | 0

Question

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...

5 meses ago | 0 answers | 0

Question

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://...

5 meses ago | 0 answers | 0

Question

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...

6 meses ago | 1 answer | 0

Question

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...

6 meses ago | 1 answer | 0

Question

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...

6 meses ago | 0 answers | 0

Question

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) ...

6 meses ago | 2 answers | 0

Question

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...

6 meses ago | 1 answer | 0

Question

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...

6 meses ago | 1 answer | 0

Question

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...

6 meses ago | 0 answers | 0

Question

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...

6 meses ago | 1 answer | 0

Question

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...

7 meses ago | 0 answers | 0

Question

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...

7 meses ago | 1 answer | 0

Question

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...

7 meses ago | 1 answer | 0

Question

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.

7 meses ago | 1 answer | 0

Question

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. ...

7 meses ago | 1 answer | 0

Question

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...

7 meses ago | 1 answer | 0

Question

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...

7 meses ago | 1 answer | 0