the cyclist

Alden Scientific

Last seen: Today | Attivo dal 2011

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

Statistiche

All

Visualizza badge

Content Feed

Risposto
Any availiable function to find the Taylor series of multi variables function in Matlab?
syms x y z; f = tanh(x^7*y^9*z^5) % I think you may have had a typo or two in your function, so check this taylor_series = t...

3 giorni fa | 0

Risposto
Matlab 2023b crash when I close a plot
Known issue (among some others with Sonoma). See this thread. I have had success closing figures "manually" if I put the focus ...

8 giorni fa | 0

Risposto
el codigo en el que estoy trabajando debe leer datos en tiempo real de arduino
See this example from the documentation for serialport: s = serialport("COM3",9600,"Timeout",5); data = read(s,16,"uint32"); ...

14 giorni fa | 0

Risposto
How to use Machine Learning Algorithms in classification for categorical problem?
Based on your replies to my comments, this does not seem like a machine learning classification problem to me. It seems like a p...

15 giorni fa | 0

Risposto
Grouping the data of two variables by sum
R = [1; 3; 4; 1; 1; 3]; Z = [3; 2; 1; 3; 2; 2]; E = [0.5; 0.4; 0.3; 0.1; 0.5; 0.4]; tbl = table(R,Z,E) groupsummary(tbl,...

21 giorni fa | 0

| accettato

Risposto
How to fill in o marker with color
Set the MarkerFaceColor property: clc; clear; close all; % Curve Fit - Left of Target x = [1500 1600 1750 1930 2250]; ...

21 giorni fa | 0

Risposto
does kruskal-wallis test on matlab take into account when a sample has a large number of ties or is their a specific function to use in such a situation?
Looking inside the code for anova1 (which is called by kruskalwallis), I see that it uses a formula that is adjusted for ties. I...

21 giorni fa | 0

| accettato

Risposto
How to estimate Y using a linear regression and an uncertain X value.
This is not exactly what you have asked for, but you could also look into doing the first regression using an errors-in-variable...

22 giorni fa | 0

Risposto
Copy a file to a parent folder
copyfile filename ..

22 giorni fa | 0

Risposto
for loop keeps putting out error
Don't use the keyword size as a variable name. I changed it in the code below: % Define the dimensions of the garden area (in s...

25 giorni fa | 0

Risposto
Dealing with NaNs in corr function (upper/lower triangles of matrices with same dimension)
The documentation page for the corr function describes how to use the "Row" name-value parameter to decide how to deal with miss...

25 giorni fa | 0

| accettato

Risposto
New to matlab, trying to understand basic functions still
Assuming that D0a is a matrix, then x is the 1st column of that matrix. (x is a column vector.) nf is the number of elements i...

circa un mese fa | 0

Risposto
How to label names in bar graph?
Can you upload the data, so that we can run your code? You can use the paper clip icon in the INSERT section of the toolbar. Wh...

circa un mese fa | 0

Risposto
How to apply RNN for regression?.
There is a nice introduction to using RNNs in MATLAB documented here.

circa un mese fa | 0

| accettato

Risposto
Matlab freezes. I am using mac Apple M2 Max. OSX sonoma
This is a known bug with R2023b (and also older releases) on Sonoma, officially acknowledged by the MathWorks Support Team. See ...

circa un mese fa | 0

Risposto
Error using indexing Too many output arguments.
I'm guessing that in the expression (b1.*B.n3') you intended (b1.*B.*n3') The specific error is because the syntax you used ...

circa un mese fa | 0

Risposto
Documentation about centralized Learning for Multi Agent Reinforcement Learning
References for MATLAB functions are typically in two locations: at the bottom of the page for specific functions (or sometime o...

circa un mese fa | 0

Risposto
I need help figuring out the mistake in my function approximation
Your 5th-degree polynomial is smooth (but not unique, because you only have 4 data points). You just don't plot on a fine enough...

circa un mese fa | 0

| accettato

Risposto
prctile function and percentile function in excel
Quoting the Wikipedia article on Percentile, "There is no standard definition of percentile". Because of this, there can be diff...

circa un mese fa | 0

Risposto
dbstop if error not working
ferror is the name of a built-in MATLAB function (which the debugger cannot open into). I expect it is being called, rather than...

circa un mese fa | 0

Risposto
Error using confusionmat command
I'd like to see the data, but in this line C_nn = confusionmat(Y_test, Y_pred_nn); isn't Y_test a Nx1 vector (where N is the n...

circa un mese fa | 0

Risposto
How to have same heading for different columns in the table?
You can't have identical column names. If it's just for display purposes, you could add whitespace. t1 = rand(3,1); t2 = rand(...

circa un mese fa | 0

Risposto
MATLAB editor change 2021a to 2023b - Clear all breakpoints
You can still remove groups of breakpoints via the ribbon, but it does take an extra click (on the Run pull-down). This annoyed...

circa un mese fa | 0

| accettato

Risposto
strong.mat file not found in MATLAB installation
The reason is that starting with R2023a, the default MATLAB installation no longer install a local copy of the documentation. Th...

circa un mese fa | 1

| accettato

Risposto
Error using readtable '.1(0a)' is not a recognized file extension. Unable to detect file type.
MATLAB can't autodetect the file type, and you're not sure either, so you can try to experiment. You can specify a ('Name','Valu...

circa un mese fa | 0

Risposto
String in an axis label that varies depending on code
There are many possible ways to achieve this. One way is to store the strings in an array, and then index into that array using ...

circa un mese fa | 0

| accettato

Risposto
install MATLAB 2017b version
Go to the Downloads page On the left-hand side of the page, click on "Show More" Click on R2017b Follow the instructions

circa un mese fa | 0

Risposto
Goodness of fit parameters seem to be incorrect in Curve Fitter App with Exponential 2 term
You are fitting 5 data points, using a function that has 4 free parameters. Furthermore, fitting with a double-exponential is pr...

circa un mese fa | 1

Risposto
Help finding cell array indices for unique characters in string names
names = cell(1, 10); names{1} = '*H'; names{2} = 'HO2'; names{3} = '*H2'; names{4} = 'H2O'; names{5} = 'H2O2'; names{6} = ...

circa un mese fa | 1

Risposto
"I'm trying to add an 'if' statement to analyze each result, but Matlab is 'ignoring' the condition and not performing the addition."
Is c a vector? If so, then all elements of c would have to be less than zero, to enter the if condition. This is explained in th...

circa un mese fa | 0

Carica altro

the cyclist

Alden Scientific

Statistiche

Community

Community

MATLAB Answers

MATLAB Answers

Cody

Cody

File Exchange

File Exchange

MATLAB Answers

MATLAB Answers

MATLAB Answers

MATLAB Answers

Content Feed