Answered
use array operations to add 360 to elements of an array less than -180 without a loop
A = [1,2,3,359,5,358,355]; idx = (A>=180); A(idx) = A(idx) - 360

3 years ago | 1

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Answered
How to locate X value for a given Y value
It would be helpful if you uploaded the data. You can use the paper clip icon in the INSERT section of the toolbar. It seems li...

3 years ago | 0

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How to compare classifiers on different datasets?
I don't know that there is one best answer to this. I think that a useful way to think about it is to realize that what you rea...

3 years ago | 0

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Unrecognized function or variable 'Newton_Starbucks'.
I searched the internet for "Newton_Starbucks". The only link I found was this one. If that's relevant, then it seems to me that...

3 years ago | 0

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Answered
How to break data in to groups using while loop?
Here is one way: matrix = [1 50 60 70 50 40 2 NaN 10 20 10 10 3 NaN 20 NaN NaN NaN 1 NaN 60 30 40 50 2 10 2...

3 years ago | 1

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How to label the numeric values at the end of a stack in a stacked bar graph?
More of an editorial comment than just adding to the solid solutions that are already here, but I think a more economical (and m...

3 years ago | 1

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help me to find error in this file?
The error seems to be that you are missing parentheses, or they are otherwise mismatched. We could guess at where they are missi...

3 years ago | 0

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Answered
Use data array with specific names
You are seeing first-hand why variables should not be named dynamically. If at all possible, this problem should be solved upstr...

3 years ago | 0

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Answered
Finding the first index of a row where all integers of a defined list have occurred
I 100% agree with @John D'Errico's take on this, which is that any non-loop solution here is (probably) going to be sufficiently...

3 years ago | 0

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How can I plot this X and Y data?
It's unclear to me exactly what you want to plot. That file has 10,048 data points. Here is one possibility, which puts a dot a...

3 years ago | 1

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Way to solve AX=XB
This is a special case of the Sylvester equation. Looks like the sylvester function will be helpful for you. You might also be...

3 years ago | 0

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linear mixed-effects model (fitlme) add array variable
I am by no means an expert on image processing, but one possibility is to preprocess your images to extract individual "features...

3 years ago | 0

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post hoc tests for aoctool
After running aoctool and getting the stats output, you can simply run [results,~,~,gnames] = multcompare(stats) If you do tha...

3 years ago | 1

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Answered
Mat structure to csv
I downloaded the first file on that page, which is EXIOBASE_3rx_aggLandUseExtensions_1995_pxp.mat, and then uploaded it to MATLA...

3 years ago | 0

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Answered
Randomly select one value from an Array.
Here is one way to pull 30 random values (with possible repeats) from A. randomIndex = randi(200,30,1); new_A = A(randomIndex)...

3 years ago | 1

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Unable to perform assignment because the size of the left side is 1-by-1 and the size of the right side is 1-by-120.
You haven't quite given us enough information about your code, because that little code snippet may or may not work, depending o...

3 years ago | 0

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0.48 and 0.72 not detected in the array
Due to floating point precision, the values are not exactly 0.48. For example, load("varmat.mat","SessionData") SessionData.Co...

3 years ago | 1

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What are the differences between integral and trapz?
Both functions perform numerical integration, but they use different methods. This is mentioned within the first couple of the d...

3 years ago | 2

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how to split a dataset for training and testing in matlab?
randsample, cvpartition, and randperm can all be useful for creating training/test splits. As @Sargondjani mentions, we need mor...

3 years ago | 0

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Answered
run takes too long!
Vectorizing the for loop gives a nice speedup. There are almost certainly other optimizations possible. clc clear; % percent ...

3 years ago | 1

Answered
How to quantify the goodness of a fit?
EDIT: My first posting on this was incomplete, so I radically edited it. Sorry for any confusion if you saw the first version. ...

3 years ago | 0

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Answered
take the length of each row
There are probably a few ways to do this. Here is one, which relies on reading the file into a numeric array, which will pad the...

3 years ago | 0

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How to create a vector that repeats 5 values per increment in a for loop?
v = 100:50:1000; u = repelem(v,5);

3 years ago | 0

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Plot question as values for both axis are different
Do you mean you just want to place two plot on the same axes? Then you use hold figure hold on plot([2 3 5],[7 11 13]) plot(...

3 years ago | 0

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Generate a random sequence of PAM-4 but with values -1,-0.33,0.33,1
I didn't research PAM-4 enough to know whether each element is independent from prior values. The following code will generate a...

3 years ago | 0

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It is possible to use sprintf to print a string input?
I think you want c1= sprintf('Indicate the units of the variable %s',vi); rather than c1= sprintf('Indicate the units of the ...

3 years ago | 0

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Answered
Counting sequences for a non-parametric statistical test (sequence test or RUN test).
I see you found and accepted a solution. An alternative would have been to download the versatile RunLength utility from the Fil...

3 years ago | 1

Answered
Array indices must be positive integers or logical values
I'm guessing that when you wrote B(L - x) (in two places), you intended this multiplication: B.*(L - x) instead. The way you...

3 years ago | 1

Answered
Plot curve through data points
You can use a different interpolation method. pchip looks like what you want: x = [15.9, 16.9, 17.5, 19.6]; v = [1.108287307, ...

3 years ago | 2

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Answered
Identify, for each column of a matrix, numbers that are smaller than the previous ones, creating a 0 1 output having the same size of the original matrix
My output is a bit different from yours, but I think I followed the algorithm you wanted. M = [ ... 1.05 21.22 17.2; ... 2....

3 years ago | 1