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**Feeds**

readtable struggling to interpret spreadsheet as numbers

seriesAL = rows2vars(readtable('Alberta.csv', ReadRowNames=1, MissingRule="omitrow",VariableNamingRule='preserve')) yy = strrep...

3 days ago | 0

Hi, I am having some trouble with a plot. I am trying to plot pressure vs. time using an equation for pressure with respect to time. Whenever I plot this I get a blank graph, so i'm not sure what the problem is. I appreciate any help!

@Sarah Fries Try using the vpasolve function and solve the equation for well defined input time interval. In your code, you we...

4 days ago | 0

I didn't understand it how they completed it?

@Mohit Define the symbolic variables d & theta for the given equation to be solved % syms d theta x = [d theta]; % defin...

5 days ago | 0

Workspace variable not available despite visibility in another variable

if you want to store the variable names Testsignal_1 and Current then you need to use an indexing variable as below. If this c...

10 days ago | 0

| accepted

Adding Legend to Subplot

@Ollie Bardsley, you need to rearrange the few lines of code inside the for loop as shown below LF = ["0 1.fig","0 2.fig","1...

19 days ago | 0

| accepted

How can I write a 'for' loop that sums up all elements of a vector?

@Seif do you mean like this ? a= [1:5] for i=1:3 c(i)=sum(a(i)+a(i+1)) disp(sum(c)) end

23 days ago | 0

| accepted

Legend colors change when I have two y axes

colors=["#028A0F","#1D57A9","#3DCBC8","#9C58A1","#F0D04D","#CD0027","#EF9F26","#B2B3B5","#FA9DAC","#98FF98","#67032F","#010101"]...

24 days ago | 0

| accepted

How to make the negative sign of y axis to be up ?

ydata = -900:100:100 xdata = ydata.*ones(1,length(ydata)) plot(xdata,ydata) yticks = ydata; yticklabels(fliplr(yticks))

25 days ago | 0

Incorrect dimensions for matrix multiplication

k = @(t,u) (k0 + (p*k0.^u-q*k0).*t +(p*k0.^u-q*k0).*(p*u*k0.^u-q).*t.^2/factorial(2)... +(p*k0.^u-q*k0).*((p*u.*k0.^u-q)....

2 months ago | 0

| accepted

how to get variable of function in for loop

x = 1:20; y = 1:13; f = []; for i = 1:length(x), for j = 1:length(y); f(i,j) = x(i).^2 - x(i) -2*y(j).^2 + y(j) -2...

2 months ago | 0

Plotting of a rolling ball

@Cem Eren Aslan, you can use plot function handle and delete it at end of every iteration inside the loop, data = [0 ...

3 months ago | 0

| accepted

readmatrix returning last column as NaN

@Philip The last column has additional character (semicolon) ' ; ' even though it has numeric data. Use readtable to check that ...

3 months ago | 1

| accepted

How to solve algebraic equations for different values of variables ?

eqn = Ac.*I.*eta-m.*c.*(Te-Ti)==0;

3 months ago | 0

| accepted

imagesc graph axis setting probelm in Matlab Appdesigner

@준홍Ok. It may be for this reason, using *sprintf* function when you print to status text area value. This function prints output...

3 months ago | 0

About While Loops problems

It has already exited, the first while loop, but it's waiting for next input from user ... See the message at bottom left of win...

3 months ago | 0

My User-defined Function is in red

>>[numout,unit] = MyUnitConverter(25,'cels2fahr') Call your function as above from command window

3 months ago | 0

How to extract a slider value?

@Darío Imbernón Clavero, You can call the ValueChangedFcn property for the uislider function, and define functions for ValueCha...

3 months ago | 0

2 variables symbolic function representation

Hi @laura bagnale, you can use the function handle and choose a suitable plot function for representation that best fits your ne...

3 months ago | 0

Error with my CODE and I don't know why.

@Raphael Marcelo You can modify the following lines in your code. i.e. set the uieditfield property to numeric instead of text...

3 months ago | 0

Arrowhead is turning the wrong way

Hi @Rasmus Bruun, In this line, you are trying to reverse the direction of X-axis (for unknown reason), If you comment the bel...

3 months ago | 0

Error in Error in odearguments (line 92) f0 = ode(t0,y0,args{:}); % ODE15I sets args{1} to yp0. Error in ode45 (line 104) odearguments(odeIsFuncHandle,odeTreatAsMFile,

@Juan you have probably tried using the arguments to the ode45 function as below, Try using the same syntax as it was provided ...

3 months ago | 0

I am getting the following error when I run my script: Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatc

h = h + (1/6) * (k1 + 2*k2 + 2*k3 + k4); % <> multplication operator is missing here

3 months ago | 0

Why is my figure different when I open it in the Figure Window, compared to that displayed in the results pane of Live Script?

Try without *hold off* after yline commands.

3 months ago | 0

Why are G1 and G2 outputs different?

The order of mathematical operations in evaluating G1 and G2 are different. In case of G1 , individual terms are evaluated first...

3 months ago | 0

Index exceeds number of array elements. Index must not exceed 8. HELP

Q = [beta alpha lambda vac d gamma c m]; The size of the vector is 1x8

4 months ago | 0

Extract certain values in .mat file

data= [-0.13793 -0.114746 -0.204773 -0.224304 -0.181274 -0.192566 -0.159912 -0.174866 -0.134888 -0.148926] data(2:2:end) dat...

4 months ago | 0

Function definitions are not permitted in this context.

Rename the file *ok.m* to *uniform_pcm.m* and save file. Type the name of function from command window (giving input arguments)...

4 months ago | 0

Create a solid line instead of single points in the plot

If the plot function is inside a loop, you could put it outside the loop as shown below, in order to plot solid line plot(vR(1,...

4 months ago | 0

Plotting a diagram and getting some errors

There is no function called plotv in Matlab (or it must have been removed in new release), Please refer to the following link f...

4 months ago | 0

| accepted