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Removing NaN in Linear Regression Problem. Error in line 66.
Try using rmmissing. It accepts vectors, matrices, cell arrays, tables, and timetables as input.

6 years ago | 0

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How to start reading from a specific line in a text file?
What type of text file? Genearlly, you would use fseek to get to the starting point you want, and fgetl to read in your data li...

6 years ago | 0

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monthly average of my variables
Recommendations would be to use readtable, add a variable to the table containing the dates as datetimes, and then use groupsumm...

6 years ago | 0

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Loop in SPM batch not working
The issue I see is that you are trying to combine text and numbers using a function that is expecting all text. As you've observ...

6 years ago | 0

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How can I get fixed output in ode45
Use the following calling syntax instead. This results in a value in y corresponding to each time point specified in tspan. tsp...

6 years ago | 0

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Problem with if else loop
There are a couple issues I see. You have too many end keywords. You only need two here. To test multiple conditions, you have...

6 years ago | 0

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Plot doesn't show anything
One potential issue - you have used the variable i twice. You should probably come up with a different counter variable for your...

6 years ago | 0

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Answered
UIgetfile Error on Matlab Online
It appears the 'Multiselect' flag is what is causing the error. Remove that, and it should work. [f_name p_name] = uigetfile('*...

6 years ago | 0

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I need help with this. How can I use indices to extract non consecutive numbers.
If you are stuck on a task in MATLAB Onramp, click the "Show Solution" link under the task.

6 years ago | 2

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How to make the following contour plot in matlab?
Try something like this. data = readtable("Input1.xlsx","ReadVariableNames",false); X = reshape(data.Var1,12,30); Y = resha...

6 years ago | 0

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plot y Vs. X in heat-map plot
Heatmap accepts inputs of xvalues and yvalues. You may also specify a color variable. However, I don't know that I'd consider h...

6 years ago | 0

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Question about a function
"Code ran without output" is just a message to let you know your code has finished running and did not produce any outputs. With...

6 years ago | 0

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How to smoothen the signal and make a good envelope
You can try doing this interactievly using the new Smooth Data task. You can test out a variety of settings to see what works wi...

6 years ago | 0

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Answered
Can I list files in my Google Drive folder from the web?
No, at least not that simply. It's quite a process to connect to google drive from MATLAB. Here's a question I asked just trying...

6 years ago | 0

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how to normalize matrix with positive and negative values
Find the min value, add it to all values, then normalize.

6 years ago | 0

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Answered
Error using plotv "too many input arguments"
The function plotv does not support the input argument 'Color'. You could set the colororder property of the axis before plotti...

6 years ago | 0

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I cant find my value for an fsolve.
You use the variable jw before it gets defined (in your call to ode45). Also, when defining jw, you also use a variable y which ...

6 years ago | 0

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how can i add missing function?
type which place The result should be somethign like this: "C:\Program Files\MATLAB\R2019b\toolbox\control\ctrldesign\place.m" ...

6 years ago | 0

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Answered
Averaging value in table grouping by some datetime
Use groupsummary. If your original table is called tbl, the following would work. meanTbl = groupsummary(tbl,"Date","hour","mea...

6 years ago | 0

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Plotting vectors of different lengths and values on the same x, logy graph
You can achieve this using the hold function. semilogy(turbo_R_0333_native.xm,turbo_R_0333_native.y_mean, '-+'); hold on semi...

6 years ago | 0

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How to turn on the colorbar on a clustergram object by command line?
Check out this post for a possible solution.

6 years ago | 0

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Arrange/Sort data in specific order
If you load the data into a table in MATLAB, you can use the movevars command to rearrange the data however you'd like. However,...

6 years ago | 0

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Question about peak detection
Do you have the Signal Processing toolbox? This can be accomplished with the findpeaks function. [pk,loc]=findpeaks(icp,"MinPea...

6 years ago | 0

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COVID-19 How do I set up the SHARED folder so that Students and Professor can share files?
I'd also recommend looking at our self-paced Teaching with MATLAB course. Chapter 4 in particular talks about MATLAB Drive, whil...

6 years ago | 2

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Does the PDE Tolbox come standard with matlab
It would depend on your license. You can explore options here. Generally speaking, if you are purchasing your own copy of MATLAB...

6 years ago | 0

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Matlab 2019b will not start on Mac OS Catalina
I think the best solution is to contact technical support. All users with a valid license get install support.

6 years ago | 1

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How can I calculate distance between a point in a given radius inside a geographic coordinate grid?
You can compute distances between two lat/lon coorinates using the Haversine formula. You can google it to find the equation. Yo...

6 years ago | 0

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Import 3D mesh to matlab (pde)
I've used stlread before to read in a surface mesh file before. Is that an option for you?

6 years ago | 1

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Best way to pull every other row from excel?
The challenge here is you are mixing data types. I would recommend using a table with names in one variable and corresponding nu...

6 years ago | 0

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Answered
MATLAB Grader: Sets of problems with memory
It is not currently possible to do this. The problems in MATLAB Grader are completely independent of each other. There is no way...

6 years ago | 0