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NN


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85 total contributions since 2019

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Question


Undefined operator './' for input arguments of type 'cell'.
Hi , i am using the below command and getting the error: date_num2 = datenum(testdates)+table2array(Data(1:end,2))./24; ...

15 minutes ago | 0 answers | 0

0

answers

Question


importance of weights in optimization
Hi, This code written below is taken from matlab example , https://ww2.mathworks.cn/matlabcentral/fileexchange/73139-microgri...

1 day ago | 0 answers | 0

0

answers

Question


matlab optimisation problem _ constraint
Hi, this is a code from matlab optimisation problem given in the below link https://www.mathworks.com/matlabcentral/filee...

3 days ago | 1 answer | 0

1

answer

Question


Coefficient of determination , R2 from actual and predicted data
How can i find the Coefficient of determination , R2 from predicted and actual data ? How can i write matlab code for that

11 days ago | 0 answers | 0

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answers

Question


Algebraic loop problem _Simulink
hi Kindly advice how can i solve algebraic loop problem. Simulink cannot solve the algebraic loop containing 'march0604/Sub...

16 days ago | 0 answers | 0

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answers

Question


how can i convert Principal component analysis(PCA) data back to original data ?
Hi all, i used the below code to reduce dimension suing PCA in steps, and how can i convert the output back to original data s...

16 days ago | 1 answer | 0

1

answer

Question


Losses in forecasting _cosine similarity class ,mean square logarithmic error , and huber class
How can i write the code for calculating cosine similarity class ,mean square logarithmic error , and huber class in matlab cod...

22 days ago | 0 answers | 0

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answers

Question


initial SoC values _Matlab example
Hi, In the Matlab example https://www.mathworks.com/help/physmod/sps/ug/24-hour-simulation-of-a-vehicle-to-grid-v2g-system.html...

1 month ago | 0 answers | 0

0

answers

Question


Unable to change the date in .fig
Hi , i use this below code and not able to change the date from Dec 31 1899. .Fig image is attached.I would like to change the d...

1 month ago | 1 answer | 0

1

answer

Question


Matlab example file _SoC calculation
In the matlab example, https://www.mathworks.com/help/physmod/sps/ug/24-hour-simulation-of-a-vehicle-to-grid-v2g-system.html...

2 months ago | 0 answers | 0

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answers

Question


Matlab look up table
Hi , i want to give the data of 50 vehicle's SoC (%) to look up table in simulink instead of varying 24 values of one SoC over...

2 months ago | 0 answers | 0

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answers

Question


Matlab LOOK up Table
I have 50 data points and i have imported these 50 data points from matlab to look up table,and has given 50 breakpoints.i am si...

2 months ago | 0 answers | 0

0

answers

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...

2 months ago | 2 answers | 0

2

answers

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...

2 months ago | 1 answer | 0

1

answer

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...

2 months ago | 1 answer | 0

1

answer

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...

2 months ago | 0 answers | 0

0

answers

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...

3 months ago | 1 answer | 0

1

answer

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...

3 months ago | 1 answer | 0

1

answer

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 months ago | 1 answer | 0

1

answer

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 ...

3 months ago | 0 answers | 0

0

answers

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.. ...

3 months ago | 0 answers | 0

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answers

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...

3 months ago | 1 answer | 0

1

answer

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...

3 months ago | 0 answers | 0

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answers

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....

3 months ago | 0 answers | 0

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answers

Question


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...

3 months ago | 0 answers | 0

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answers

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...

3 months ago | 0 answers | 0

0

answers

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...

4 months ago | 0 answers | 0

0

answers

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://...

4 months ago | 0 answers | 0

0

answers

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...

4 months ago | 1 answer | 0

1

answer

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...

4 months ago | 1 answer | 0

1

answer

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