the cyclist

Alden Scientific

Last seen: Today | Active since 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

Statistics

All

View badges

Content Feed

Answered
Merging multiple graphs in the same tiled layout
If I understand what you mean, you just need to use the hold function (just after nexttile) to retain plots, rather than replaci...

2 days ago | 0

Answered
.csv using readtable doesn't make difference between the value 1 and 01
% Detect the automatic import options opts = detectImportOptions("23_Time Cards_Practice 1.CSV"); % Change of import type of...

2 days ago | 1

Answered
Plot legend has too many entries
This line yieldline_steel = plot(x1,y1,x,y_steel) plots two objects, the first of which is just a single point.

3 days ago | 0

| accepted

Answered
How can I modify a list of existing variables programmatically?
You've seen @Walter Roberson's answer, and it is spot-on. That being said, what you want to do is possible, using the appropriat...

3 days ago | 1

Answered
Get exact curve parameters in the fit function
The four decimal places are just the default display value. You can change that with the format command. For example, use format...

4 days ago | 1

| accepted

Answered
If statement not working for trig quad check
I did not look in detail, but I'd be willing to bet that the problem lies in making comparisons between floating-point numbers, ...

5 days ago | 0

| accepted

Answered
Mathematical functions across variables
If you just want to know their sum A(1,1) + B(2,1) If you want to add A(1,1) to the value stored in B(2,1) B(2,1) = A(1,1) + ...

5 days ago | 0

Answered
Plot ECDF and histogramm of distribution
Do you mean you want to avoid drawing the additional horizontal red lines? I think you'll need to do something "manually", beca...

7 days ago | 0

| accepted

Answered
Are "fitrnet" and "fitnet" using backpropagation?
I am not an expert, but my read of the documentation is that all the algorithms used by fitnet, at least, will use backpropagati...

8 days ago | 1

Answered
How to update leap seconds
The file leapseconds.m calls a built-in file to get the list of leap seconds, but you can edit that file to add additional ones....

8 days ago | 0

Answered
Random number generate in an interval
A normal distribution, by definition, has support from negative infinity to positive infinity. You cannot have both a normal dis...

10 days ago | 0

Answered
I can not solve the errors
The direct cause of the error you are seeing is that in the line that gives the error, you are trying to matrix-multiply a 1x3 v...

12 days ago | 0

| accepted

Answered
Error Code: Unable to perform assignment because the left and right sides have a different number of elements
My best guess is that while your t and v have the same number of elements (which would allow plotting them against each other), ...

12 days ago | 0

Answered
Sorting columns by header names
% Make up a data table N = 3; Column_B_data1 = rand(N,1); Column_A_data1 = rand(N,1); Column_C_data2 = rand(N,1); Column_D_...

17 days ago | 1

| accepted

Answered
Horzcat Error in 3x3 matrix with multiplication of Matrices
There is nothing inherently wrong with the matrix you specified (as you can see from the code below). You'll need to share more...

23 days ago | 0

Answered
Need help in using trapz to integrate a definite function
trapz is probably not the best way to do this. You could use integral instead c=3*10^8; % speed of light in vaccum h=6.626*10....

24 days ago | 1

Answered
Need help in using trapz to integrate a definite function
Did you read the documentation for the trapz function? It expects either two or three inputs, not the four you provided. I am g...

24 days ago | 0

Answered
Break title into multiple lines?
You can create a multiline tile using either a cell array or a string array. Each element in the array corresponds to a separate...

26 days ago | 105

| accepted

Answered
Dark Mode editor for MATLAB
UPDATE April 2022 - Please see this Answer for more details on dark mode: https://www.mathworks.com/matlabcentral/answers/167119...

27 days ago | 18

| accepted

Answered
Fitting 3-d plot
Use meshgrid to make a grid out of your x and y vectors: x = 1:8; y = 1:11; z = rand(11,8); [xx,yy] = meshgrid(x,y); su...

28 days ago | 0

| accepted

Answered
Slider (legacy) with no room to slide?
I believe this does what you want, for N=1. I frankly have not fully grokked how this works, but figured I'd post the solution ...

29 days ago | 0

| accepted

Answered
Numbers prediction using advanced matlab code
The fact that you do not reproduce the same output every time is probably because the algorithm you are using has some random co...

29 days ago | 0

Answered
Is there a way to use a for loop to loop through structure fields?
Yes, you can. (Here, I just check the size, instead of calling a function.) mystruct.field1 = rand(2,3,5,7); mystruct.field2 =...

1 month ago | 1

Answered
How to obtain an array of the indices from the original array when using nchoosek
I have to admit I am not absolutely certain about what you want as input and output. Here is my best guess: A = [7, 8, 9]; C =...

1 month ago | 1

| accepted

Answered
How do I fit two function in a same data at a time depending on the range ?
Here is a solution in which I fit the non-linear function (of the form you prescribe) to the data. (For fun, I added some stati...

1 month ago | 0

Answered
How do I fit two function in a same data at a time depending on the range ?
If the data are truly smooth, as what you posted (and does not have statistical fluctuation), then you just need to find the fir...

1 month ago | 0

Answered
transform bar chart with separate bars (for each value of y) to bar chart with overlapping bars
load matrix M = matrix(:,2:end); [sortedM,sortingIndex] = sort(M,2); cm = [[1,0,0]; [0,0,1]; [0,1,0]; [1,0,0.52]]; fi...

1 month ago | 0

| accepted

Answered
How to incorporate likelihood component in posterior estimation?
I am not experienced using these models, but based on the workflow described in this documentation, I think you just need to use...

1 month ago | 0

Answered
In the operation of filtfilt, does the filtering process occur in the row direction or the column direction?
Per the documentation page filtfilt ... "The function operates along the first array dimension of x unless x is a row vector. I...

1 month ago | 0

| accepted

Answered
3D plot origin shifting
By default, the axes will go from smaller to larger number, starting from the point "nearest" you, moving "away". It seems like ...

1 month ago | 0