Answered
how can i change the type of data imported data from excel file
I'd probably do something like this file ="ahmedMohamed_data1.xlsx"; data = readtable(file) data.indices = str2double(split(d...

6 years ago | 0

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Multiple grouping variables in a boxplot
The file exchange may have some code that does this. See this post. As far as what can be done in MATLAB, here's a simple examp...

6 years ago | 1

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Grader says answer Verified in Reference Solution is wrong when submitted by a Learner
From what I can see, the issue is that you are comparing two symbolic variables. Symbolic variables do not have a concept of tol...

6 years ago | 1

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Answered
How to create a uniform y-tick interval in subplots
Something like this works. Note that you'll have some challenges because most of your y values are very small, so it might not l...

6 years ago | 0

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Any idea to make scatter plot more clear to read?
Have you checked out the properties for scatter plots? Consider changing your marker style or marker size. You can also adjust ...

6 years ago | 0

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how to plot single curve with 2 yaxis align?
Your second plot is not appearing. Starting in r2016a, the recommended way to plot with 2 y-axes is to use yyaxis. = [0.015 ...

6 years ago | 0

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matlab online (Unrecognized function or variable 'minFunc'.)
That is not a function created by MathWorks. Make sure you have the file for the function, and that it either exists on your MAT...

6 years ago | 0

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Answered
How to run a loop for variables satifying a specific condition and multiply them by values stored in a matrix?
I recommend you spend some time going through MATLAB Onramp. It's interactive, and you can go at your own pace. Oh, and it's fre...

6 years ago | 0

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Answered
How to reindex values from a vector
index = [4 2 3 1 5]; x=[0.5392 0.7805 0.5867 0.4189 0.9886]; sortedX = x(index) sortedX = 1×5 0.4189 0.7805...

6 years ago | 0

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Answered
How to generate random number in MATLAB
So not truly random, since the values are co-dependent. There is nothing built-in that will do this, so you have to code the log...

6 years ago | 0

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How to extract seasonal means?
For those just coming here, you can see additional details and explanation here. You seem to be grouping Jan, Feb and Dec from ...

6 years ago | 1

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Answered
Adjusting properties of polar histogram
The best way to see what properties a figure has is to open the property inspector. set the RTickLabel property. Make sure yo...

6 years ago | 0

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Answered
How to repshape array to matrix with different length of each row ?
MATLAB has the function reshape, but there are a couple things to be aware of when using it: The number of elements can't chang...

6 years ago | 2

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Answered
Loading data into an array
I suggest taking some time to go through MATLAB Oramp. It's a great way to familiarize yourself with MATLAB syntax. For example,...

6 years ago | 0

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Attempt to execute SCRIPT pdepe as a function:
Your code runs as is for me. Perhaps you have overwritten the pdepe function? Try clearing it by typing clear pdepe Run the co...

6 years ago | 0

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Answered
The spacecraft free-fall math model
Another student in the class has asked several questions about this problem as well. Perhaps take a look at the comments in thes...

6 years ago | 0

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Count Peaks in a Graph
Is your signal always this clean? if so, this would work for n=3:length(z) if z(n-1) - z(n-2) > 0 && z(n)-z(n-1) < 0 && z(...

6 years ago | 0

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Answered
app.UIfigure.Visible does not keep the app window on top of all other windows
Try using drawnow with the figure command in your button callbacks (see this post) drawnow; figure(app.UIFigure)

6 years ago | 2

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How to extract values from a 3-d .mat file?
Your mat file contains variables. Loading the mat file loads the variables back into the workspace. load summean.mat If there ...

6 years ago | 0

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Customize color map for temperature and precipitation
Do you have to exactly reproduce the results or just something similar? If you notice, the colorbars in the desired output do n...

6 years ago | 0

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How to set the x axis on heatmap
You know the problem, you just have to decide what approach you want take. It's easy enough to use indexing to determine the poi...

6 years ago | 0

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Answered
how can I generate a 3d surface object from 3d vertex extracted from a blender .ply?
Does it have to be a ply file? If you can export it as an stl file, the following code might meet your needs. mnky = stlread("m...

6 years ago | 0

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How do I plot the value at each iteration?
I shared a simple example in a similar post recently. That might help.

6 years ago | 0

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How to plot a circle given its equation (with colors)
You could rearrange the equations to be in the form "y=..." and then use fplot on that. y=@(x) sqrt(1/2 - x.^2); fplot(y,'--or...

6 years ago | 0

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Answered
Kinematics while loop is infinite, plus other errors.
Quick observation is that you are not being careful with your units. H is specified as height in km, but it looks like you are c...

6 years ago | 0

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how to use ode45 ?
We don't know what odefun or vectorize are, but it doesn't make sense to be using varargin here. Have you tried looking at the d...

6 years ago | 0

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How to find out the set of Y values > 0 and corresponding X values?
I recommend first learning about indexing in chapter 5 of MATLAB Onramp, then moving to logical indexing in chapter 12 (task 4 i...

6 years ago | 0

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Answered
How to plot an iteration to run like a simulation while iteration is still ongoing?
You have one too many ends in your code. Not sure at what point you want to plot Best, and against what other variable, so her...

6 years ago | 0

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how to plot the time series data with dates showing in x axis
Convert your dates to the datetime data type. Then, when you plot using the datetime, the date will appear on the axis. You can ...

6 years ago | 0

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Answered
How to create plot3 varying color figure?
Short answer - not very easily. See this post.

6 years ago | 0