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the cyclist


Alden Scientific

Last seen: 2 giorni fa Attivo dal 2011

Followers: 1   Following: 0

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Head of Modeling and Statistics at Alden Scientific. Obsessive runner. 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.)

Programming Languages:
Python, R, MATLAB, SQL
Spoken Languages:
English
Pronouns:
He/him

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Risposto
Detection of storms from precipitation data
I think this does what you want. It is easy to make minor indexing mistakes, so you should double-check: % Load data load("VE_...

2 giorni fa | 0

Risposto
How to calculate Bootstrap confidence interval
As you may have noticed already, the data have a huge variance around that fit: x = [6 10 14 20 26 34 38]'; y = [122 107 119 1...

3 giorni fa | 0

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Risposto
don't understand output of fitlme, intercept substituted for first line.
The output is not substituting 'Intercept' for a level of your coefficient. It looks like your variable voc_registers is catego...

4 giorni fa | 0

Risposto
Does the curvefit toolbox return the equation for the best fit line (or curve)?
Yes, you can get the coefficients of the best-fit equation. @Torsten's comment illustrates where you can see them in the UI, and...

4 giorni fa | 0

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Risposto
what is the best way to learn deep learning for medical imaging?
If you are talking specifically about using MATLAB, then I suggest you start with the Deep Learning Tutorials and Examples with ...

6 giorni fa | 0

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Risposto
anyone can help me explain the meaning of the following code?
I ran your code here. It seems pretty obvious what it does, right? You might want to do the free online MATLAB Onramp tutorial,...

12 giorni fa | 0

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Risposto
Set scale of boxplots
% Make some pretend data rng default x = 1.e-5*rand(1000,16); % Boxplot boxplot(x) % Fix the y-axis scale ylim([0 1.e-...

14 giorni fa | 0

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Risposto
matrix, where each element is a column vector
ETATT=cell(11,7); % initial matrix Etat=zeros(1001,1); % column vector, contained in each element of the ETATT matrix % Fill...

14 giorni fa | 0

Risposto
How to apply individual color to each bar on a bar chart plot
The documentation for the bar command has a section on how to control individual bar colors.

15 giorni fa | 1

Risposto
Why does my fit to a PDF generated using a histogram not add up to 1 or give me correct expected value?
I can't run your code to completion, because fofaveless is not defined, so I can't calculate the variable continuous. But, it l...

16 giorni fa | 0

Risposto
How to spline 163 data points into 100 data points?
I expect you want to use the spline method in the interp1 function. It may be possible to give more specific help if you upload ...

18 giorni fa | 0

Risposto
1-Way Repeated ANOVA
I don't have any experience with this type of modeling, but it looks like you should be able to use fitrm followed by ranova on ...

21 giorni fa | 0

Risposto
How to cycle through elements in an array in Matlab
You can utilize the same idea. Just offset by one inside outside mod(): A = [2 3 5 7]; % Illustrate the mod() cycle with off...

30 giorni fa | 2

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Risposto
Why does this code give error?
It's because randi(1,Nb) generates an Nb*Nb array. You need randi(1,Nb,1) as below clear;clc; fc = 3e8; Nb = 1000; %% ...

circa un mese fa | 0

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Risposto
plot legend shows wrong linespec
The syntax you are using created a plot with 402 "lines". The first 401 are red, and the last one is blue. load('data') % I di...

circa un mese fa | 1

Risposto
want to use output matrix obtained for every iteration of a for loop in another for loop.
Here are two possibilities: % Save into cell arrays nsmall = 4; mcell = cell(nsmall,1); for k = 1:nsmall mcell{k} = ran...

circa un mese fa | 0

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Risposto
How to add a cumulative constant to all values on each row of a matrix, starting from the bottom row and ending at the top row?
There are many ways to do this. Here is one way: % Inputs in = [1 2 3; 1 2 3; 1 2 3]; constant = 0.5; % Algo...

circa un mese fa | 1

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Domanda


Score transform for RUSBoost in fitcensemble
The documentation for the predict function of fitcensemble lists the score transforms (to convert scores to probabilities) for t...

circa un mese fa | 1 risposta | 0

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Risposto
How to fix "Error using /, Matrix dimensions must agree"
Take a look at the documentation on Array vs. Matrix Operations. I used element-wise division (using ./ rather than /) in your ...

circa un mese fa | 0

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Risposto
How to run logistic regression with state variables?
When you specified the model as modelspec1 = 'DefaultFlag ~ Dist_to_DFLT*CreditStateCategory - Dist_to_DFLT:CreditStateCategory...

circa un mese fa | 0

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Risposto
How to fix matrix dimensions
In this expression Q/pi*sigmaz*sigmay*u only pi is going to be in the denominator. Since your expression bears some resemblan...

circa un mese fa | 0

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Risposto
Building an array of strings that might be empty
If the fields are empty strings, your first syntax will not concatenate them. It will make them into a string array: app.XminEd...

circa un mese fa | 0

Risposto
How to convert dates into Julian dates?
Assuming your dates are currently stored as a numeric array, then dates = [20230409 20230414 20230504 20230514 2023...

circa un mese fa | 0

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Risposto
The Tsunami model has need to fixed this problem
Disclaimer: I am not an expert in this! I was not able to track down the exact (Goring & Reichlan) reference from the documenta...

circa un mese fa | 0

Domanda


Dictionary with key-value pair of string ---> string array?
Using the older containers.Map object, I can map a string to a string array: keySet = ["Jan";"Feb";"Mar"]; valueSet = {["New Y...

circa un mese fa | 1 risposta | 0

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Risposto
why the plot are all zeros?
If you set a breakpoint at the code % Update number of processing tasks on neighbor vehicle numVehicleTasks(j) = numVehicleTas...

circa un mese fa | 0

Risposto
Moving the position of the colorbar label
It is possible to do so. I found out how from this answer. figure surf(1e7*peaks) c = colorbar; drawnow() c.Ruler.Seconda...

circa 2 mesi fa | 1

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Risposto
Minimize the sum of squared errors between the experimental and predicted data in order to estimate two optimum parameters
If you have the Statistics and Machine Learning Toolbox, you can use fitnlm to fit this function. Unless I'm making a mistake i...

circa 2 mesi fa | 0

Risposto
for loop jump an element of an array
You should not use strict equality to compare floating point numbers. Instead, check equality with a small tolerance, e.g. if ...

circa 2 mesi fa | 0

Risposto
how to build a magic matrix manually of even n*n matrix?
The method that MATLAB uses to build magic squares is evident if you enter type magic at the command line.

circa 2 mesi fa | 0

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