Mark S
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Accept 5 answers given by other contributors
Awarded to Mark S on 27 May 2021
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Domanda
Why does matlab plot the unit step like a straight line?
Hello, I want to pot only the unit step in matlab with this code: s=tf('s') sys=1/s I expectet the step response like thi...
circa 2 anni fa | 2 risposte | 1
2
risposteDomanda
Cut measured data, time series shifted
Hello, attached I have some measured data. I want now cut the data until 0,6 seconds. So I want that the plot is beginning at 0...
oltre 2 anni fa | 1 risposta | 0
1
rispostaDomanda
Matlab plot .eps file position legend is not same as in matlab plot
Hello, I want to save my plot as a .eps file. But when I open then the .eps file the legend is always inside the plot and not...
oltre 2 anni fa | 1 risposta | 0
1
rispostaDomanda
Draw from cartesian xy-data a spiral
Hello, i have cartesian data in x and y direction of a spiral path movement of a robot over time. So I want now plot this spira...
oltre 2 anni fa | 1 risposta | 0
1
rispostaDomanda
Matlab receive data with udpport
Hello, I am trying to use udpport for receiving data with matlab. Therefore I want to test it. Can I test it if my code works? ...
oltre 2 anni fa | 1 risposta | 0
1
rispostaDomanda
Matlab create function - Invalid expression
Hello, can someone help me to insert a function in Matlab correctly. I don't know why it doesn't work for me. I would like...
quasi 3 anni fa | 1 risposta | 0
1
rispostaDomanda
Calculationg with quternions Matlab function did not work
Hello, I am having some trouble with my function. I would transform a coordinate vector using Unit Quaternions. I have wri...
quasi 3 anni fa | 1 risposta | 0
1
rispostaDomanda
Compound quaternion Matlab -error
Hi, I have written a Matlab code where i can compound two relative poses by Translation-Vecot-Unit-Quaternion-Pair But I get an...
quasi 3 anni fa | 1 risposta | 0
1
rispostaDomanda
3-dimensional orthonormal rotation symbolical
I want to create symbolical 3-dimensional orthonormal rotation matrices for a pure rotation of phi_x, phi_y and phi_z. But my ...
circa 3 anni fa | 1 risposta | 0
1
rispostaDomanda
Zgrid find desired region, what is the radius?
Hi, when I type this in matlab i get the zgrid plot. zgrid(0.5,1) So we at school have now calculatet the radius with: r=e...
circa 3 anni fa | 0 risposte | 0
0
risposteDomanda
Calculate steady state error for unit step and ramp input for Zero order hold
Hi, how can I calculate the state error for unit step and ramp input for the sys2? sys1=tf(1,[1 1 0]) sys2=c2d(sys1,0.1) I...
circa 3 anni fa | 1 risposta | 0
1
rispostaDomanda
Determine the output of the given Block diagram
Hi, I have calculated by hand the output of the given block diagram Y(z), in Z-Domain. T=1 sec. I get as result: Y(z)=4z/[3(...
circa 3 anni fa | 1 risposta | 0
1
rispostaDomanda
Is it possible to calculate time constant and DC gain for RC circuit
Hi, is it possible to to calculate time constant and DC gain for a given RC circuit? I have here this matlab code and I wa...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
Scatter-plot of data in which the cluster membership is coded by colors.
Hello, I have created a dendrogram of my given data. NumCluster = 1566; dist = pdist(alldata, 'euclidean'); GroupsMatrix = li...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
Vary k-nearest neighbor classification
Hello, I have written this little model for k-nearest neighbor classification: knn_modell = fitcknn(cars, origin, 'NumNeighbors...
oltre 3 anni fa | 1 risposta | 0
1
rispostaIs it possible to evaluate the differential equation from a simulink model?
Ah ok. Then the Simulink model has been build from two differential equations. I have understood it now. Thanks for the help.
oltre 3 anni fa | 0
Domanda
Is it possible to evaluate the differential equation from a simulink model?
Hello, I want to find the differential equation from the given simulink model: I am not sure if i can get a differential equ...
oltre 3 anni fa | 2 risposte | 0
2
risposteSimulink build model from differential equation
Can anyone tell me what I am doing wrong here
oltre 3 anni fa | 0
Domanda
Simulink build model from differential equation
Hi, I am very new in simulink. I have build a simulink model from the given equation: Input is the voltage and output should ...
oltre 3 anni fa | 2 risposte | 0
2
risposteDomanda
Find minimum of single-variable function
Hi, what expression is calculated by the following command in Matlab? Code: fminbnd(@(x) (sin(x).^2-1),0,pi) Minimum of: (...
quasi 4 anni fa | 1 risposta | 0
1
rispostaDomanda
Plot transfer function with exponential function
Hi, how can I plot this tf in Matlab: G(s)= 4e^-s/(s^2+4s+4) I have tried this, but I am not sure if this is ok: sys = tf([...
quasi 4 anni fa | 2 risposte | 0
2
risposteDomanda
How can i plot transfer function with step signal input?
Hello, I have this transfer function: sys = tf([2],[1 2]) G(s) And this is my step input signal: R(s)= 2/s How can i com...
quasi 4 anni fa | 1 risposta | 0
1
rispostaDomanda
Plot 4 diagrams in one plot
Hi, I want to plot 4 diagrams in one plot. Actual i have two plots with 4 different values: clear ;clc mu=[0 0.1 1 10]; tsp...
circa 4 anni fa | 1 risposta | 0
1
rispostaDomanda
State space models are same?
Hi, if I have two state space models, how can i calculate if these two state space models represent the same plant?
circa 4 anni fa | 2 risposte | 0
2
risposteDomanda
Damped function second low
Hi, how can I find a second low of a damped function in Matlab? Do i have to use fzero?
circa 4 anni fa | 1 risposta | 0
1
rispostaDomanda
How can I stop ode45
Hi, how can I stop ode45 when the function is on the lowest point: I have tried that. options = odeset('Events', @deep); [...
circa 4 anni fa | 1 risposta | 0
1
rispostaDomanda
Maximum Drawdown calculate and plot as a chart
Hello, i want create a skript which calculate the drawdown of a stock like this: https://twitter.com/charliebilello/status/11261...
oltre 4 anni fa | 0 risposte | 1
0
risposteDomanda
Loop and write into a cell
Hello, i wanna accumulate the data in my script with a loop l=[1,2,3,4,5,6,7,8,9,10] S=[42600 35000 91850 20000 41060 30000 63...
oltre 4 anni fa | 1 risposta | 0
1
rispostaDomanda
Error in my function
Hey, i wanna make a time vector of my data. I have written this function: function [ data_out_time ] = create_time( header_out...
oltre 4 anni fa | 0 risposte | 0
0
risposteDomanda
Plot Data into a Histogramm
Hello, i have written this script: a = exprnd(200, 100, 1); small = find( a < 57 ); a ( small ) = 57; classification = ...
oltre 4 anni fa | 1 risposta | 0
1
risposta
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