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the cyclist


Last seen: Today
4 030 total contributions since 2011

Data scientist at Cohen Veterans Bioscience; 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.)

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Answered
Problem with obtain regression equation between 2 data sets
All these methods will give the same coefficient for the y/x sloped if you scale the variables first: rng default N = 10; ...

environ 9 heures ago | 1

Answered
Graph the curve line
Use the plot3 command.

4 jours ago | 0

Answered
Cannot use datetime function on {'01 Nov 2019 14:39:50.365'}
s = '01 Nov 2019 14:39:50.365'; datetime(s,'InputFormat',"dd MMM yyyy HH:mm:ss.S")

7 jours ago | 0

| accepted

Question


How to determine the x-axis positions of the bars in a grouped bar chart
Suppose I make the following bar chart: figure; bar([1 2],[3 4; 5 6]) How can I programatically find the x-axis locations of e...

13 jours ago | 3 answers | 0

3

answers

Answered
fitting a dual exponential function using nlinfit
I made up some pretend data that looks a little bit like yours, and did your fit. Here is my code: % Make up some pretend data ...

13 jours ago | 0

| accepted

Answered
how to change the box width in boxplot?
You chose the "compact" plot style. Do you prefer this version, which is the default (non-compact)? Also, are you sure you ar...

18 jours ago | 0

Answered
Array indices must be positive integers or logical values
In this line: hfuncval(k) = hfuncval(k-1); in the first iteration of the for loop, k == 1, so you are attempting to access the...

18 jours ago | 0

Answered
How to specify histogram's x and y axis
You can use the xlim and ylim commands.

19 jours ago | 1

| accepted

Answered
Plotting estimates (fixed effects) of a linear mixed-model
I could find no mention in the documentation of the LinearMixedModel class that there is an equivalent object function or method...

20 jours ago | 1

Answered
how to convert to matlab from fortran
You could try f2matlab. It might not get you all the way to the final code you need, but it will probably help.

environ un mois ago | 0

Answered
using function to remove elements from a large matrix
idxToKeep = ismember(M(:,2),[1,2,3,11,12]); M = M(idxToKeep,:);

environ un mois ago | 0

| accepted

Answered
Creating all possible combination of 0 and 1 in 2D array
Did you mean you just want each possible unique row, rather than each possible unique matrix? justRows = dec2bin(0:2^m-1)-'0' ...

environ un mois ago | 0

Answered
Creating all possible combination of 0 and 1 in 2D array
% Example choice of m and n n = 2; m = 3; allCombos = reshape(dec2bin(0:2^(n*m)-1)-'0',n,m,[]); allCombos is a 3-dimension...

environ un mois ago | 2

Answered
how to rename and Copy Zip File from one location to another location
I think you should be able to first use the movefile command to rename the other file.

environ un mois ago | 0

Answered
Where is the Compliant Joint Toolbox ?
Let me Google that for you. Looks like it is here.

environ un mois ago | 0

Answered
Storing the results from a loop using tool box functions in a new matrix
I think instead of [lab] = xyz2lab(XYZ,'d65_64') using lab(col,:) = xyz2lab(XYZ,'d65_64') should do what you want

environ un mois ago | 0

| accepted

Answered
8 coin toss problem
If you have the Statistics and Machine Learning Toolbox, then v = binopdf(0:8,8,0.5)

environ un mois ago | 0

Answered
How large is the MATLAB Student R2019b download
In an admittedly quick search, I could not find this info specifically, but the System Requirements page might be helpful.

environ un mois ago | 0

Answered
How to find and replace stand alone values in a logical array
I think this does what you want: a(strfind([1 a 1],[1 0 1])) = 1; a(strfind([0 a 0],[0 1 0])) = 0;

environ un mois ago | 2

Answered
How to convert fraction form to decimal form?
I think you want to use the subs command.

environ un mois ago | 0

Answered
Setting array indices to a vector of values
You can use sub2ind command to convert the subscripted indices (xVal,yVal) into a single linear index into the array.

environ un mois ago | 0

| accepted

Answered
CAN I use matlab in two different computers
Yes, you can use it on up to four computers, according to this page. (Click on "Learn More".) You just need to download and act...

environ 2 mois ago | 0

| accepted

Answered
Subscript indices must either be real positive integers or logicals.
In this line: np = find(kp > 1.05 & kp <1.2); there are no values of kp that satisfy this condition, so np is empty. That car...

environ 2 mois ago | 0

| accepted

Answered
Multiplying a string with 1 or 0
Here is one way: c = ['A', repmat('+B',Check_B)]; Be aware that you are actually working with character arrays, not strings.

environ 2 mois ago | 0

| accepted

Answered
inserting vectors into another new vector
Here is another way: A = [7 17 27 35]; B = [13 22 30 31]; C = [A; [B nan(numel(A)-numel(B),1)]]; C = C(1:(numel(A)+numel(B...

environ 2 mois ago | 1

Answered
I keep getting the error "Array indices must be positive integers or logical values?"
In expressions like this one k2(x2(n,:)-x1(n,:)) MATLAB is trying to index into the variable k2. You need to put in the multip...

environ 2 mois ago | 1

| accepted

Answered
Making the Y-axis a scale of a specific variable
Here is one way: r = 7; m = 50; N = 50; x = rand(N,1); y = m*rand(N,1); figure plot(x,y,'.'); set(gca,'YTick',0:r:ma...

environ 2 mois ago | 0

| accepted

Answered
how to estimate the distribution of a random variable knowing the histogram?
Do you have the underlying data, or only the counts from each bin? Were you hoping to find a particular functional form (e.g. a...

environ 2 mois ago | 0

Answered
Index exceeds the number of array elements (0)
Everywhere that you wrote zeros(i:1) I think you meant zeros(i,1)

environ 2 mois ago | 0

Answered
Curve Fit data using FIT
I used nlinfit from the Statistics and Machine Learning Toolbox. Here is the code, and the resulting plot: xy = [ ... 1 317.3...

environ 2 mois ago | 0

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