# the cyclist

Obsessive runner. Flâneur. Professional Interests: Predictive modeling, statistics. (I don't respond to email via author page, but will usually look at a question if you send me a link to it.)

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Find indices in 2D Matrix

Is this what you mean? (I made the matrices smaller, just to show the result.) A = rand(5,2)>.3; B = rand(5,2); newmatrix =...

3일 전 | 0

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Efficient way to multiply a vector of size (Nx,1) with a matrix of size (Nx+1,Nx+1)

If you permute gamma to be a vector along the dimension 3, then you can multiply it by identy, and the result will be a 33x33x32...

4일 전 | 1

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Meaning of box plot notches

The value 1.57 is not something that "MATLAB chose", but rather is directly out of the original research paper that introduced t...

6일 전 | 0

Regression/ Ordinary Least squares on a custom equation

It's definitely an interesting modeling problem. Here is a plot of your data, where I used errorbar to plot the mean and error o...

7일 전 | 0

Element wise cell division

Your code is producing the correct result. You could also have used the cellfun() function to do this operation in one line: A ...

8일 전 | 2

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how do I find at which sample on the x-axis I have maximum value of y-axis?

If you use the two-output syntax for the max() function, the second output is the index of the maximum: clear all clc set(0,'...

9일 전 | 0

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How to plot successive rows of a table when value is true

This line of code for ii=1:ra-1 is looping over all rows except for the last one, so it never "sees" the last row. Therefore, ...

10일 전 | 0

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How to create bar graph with portions (multi-dimensional)?

This example from the documentation shows exactly how to do it. y = [2 2 3; 2 5 6; 2 8 9; 2 11 12]; ba...

12일 전 | 0

How to obtain confidence level and coefficient of determination?

tsreg is not a MathWorks function. Are you using this code from the File Exchange? Obviously, the author of that code has not p...

24일 전 | 0

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Inverse of a cell array

Do you mean you want the reciprocal of each element of each matrix? (That is not what the inverse of a matrix means.) If so, th...

26일 전 | 1

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How to rearrenge function with inputs given?

Option 1 You could do something that is GUI-driven, where the user enters values into textboxes that you have labeled as accel...

26일 전 | 0

could anyone help me how to generate some of the similar values using rng

Here is a new answer, based on the comments on the other answers. numberTotal = 8; % You can change this to 1000 numberRepeat...

26일 전 | 0

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could anyone help me how to generate some of the similar values using rng

In response to the comment in my other answer, here is a pretty simple way to do it: numberRep = 3; % You can change this to 80...

27일 전 | 0

could anyone help me how to generate some of the similar values using rng

Is this what you mean? rng default % for reproducibility, if desired [repmat(rand(),1,3) rand(1,2)]

27일 전 | 0

New variables after computing Principal Components Analysis

Yes, the output score is the observed values of the variables in the principal coordinate axes. I wrote a detailed answer to th...

27일 전 | 0

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How do I integrate the triple integral square root of 4-x^2-y^2-z^2 from 0,1,0,1,0,1?

f = @(x,y,z) sqrt(4 - x.^2 - y.^2 - z.^2); q = integral3(f,0,1,0,1,0,1)

30일 전 | 0

Gaussian Curve Plotting Issues

Can you be more specific what you mean by "the current gaussian curve is very wrong"? Do you mean with the lines connecting all ...

약 1달 전 | 0

I need to calculate invers of a non square large symbolic matrix

Non-square matrices do not have inverses. You can calculate the pseudoinverse using pinv.

약 1달 전 | 0

Implementation of connected components analysis using matlab

Did you think to google "matlab connected components"? Literally the first hit is this MATLAB function. I hope that helps.

약 1달 전 | 0

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Problem by using str2double with csv file

The issue is that your input file uses commas as the decimal separator, rather than a period ("decimal point"). This means that ...

약 1달 전 | 0

Having issues producing bar chart

I assume you got error from this line: xlabel(Animal ID''s') You have mismatched single quotes, i.e. "unbalanced delimiters", ...

약 1달 전 | 0

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How to sort a cell array based on the first row?

Out of curiosity, is there some reason you are using a cell array rather than a numeric array to store these numeric data? % Or...

약 1달 전 | 0

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How can a 4 element array index pull stored string values?

Can you upload examples of your variables fourElementVector and HexData, in a MAT file? This would be helpful. But it seems fro...

약 1달 전 | 1

How to select all rows of a given column in a cell array

Your syntax: T{1}{:,4} would work if the contents of T{1} were also a cell array, since you would use the curly brackets to ac...

약 1달 전 | 1

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Defining a fitline only up to a specific x-tick

It should be straightforward, but it is not possible to deduce from your code how to do it. In particular, since none of your va...

약 2달 전 | 1

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how to make 3d array by stacking 2d arrays from sentinel 5p data?

You are looping over the wrong dimension in your code. You want something like this: files = dir('S5P_OFFL_L2__CH4____201901*.*...

약 2달 전 | 0

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Is there a way to shift the data upwards automatically?

I tried plotting Height vs. Temperature, since that is what your plot shows. But my graph looks completely different from yours....

약 2달 전 | 1

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How to remove certain rows of data in a cell array using logical indexing?

Here is an example where I keep only rows of each matrix where the sum is greater than 1. Perhaps you can adapt it to your speci...

약 2달 전 | 0

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string for figure title ignores text after variable

Write it as one string, with the variable in the midst of it" t = 8.2; titlestr=sprintf('Time=%6.5f sec',t(1)); title(titles...

약 2달 전 | 0

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random selection of number among 2 numbers

Here are a couple ways: 2*randi([0 1]) 2*round(rand())

약 2달 전 | 1