the cyclist
Last seen: 2 dagar ago
4 348 total contributions since 2011Data 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.)
the cyclist's Badges
15-year anniversary Scavenger Hunt finisher badge
Awarded to the cyclist on 09 Nov 2016
Accept 50 answers given by other contributors
Awarded to the cyclist on 05 Sep 2019
Contribute at least one answer each month for 36 consecutive months
Awarded to the cyclist on 20 Jul 2017
Receive 10 likes on a problem you have created
Awarded to the cyclist on 05 Apr 2012
Receive 25 likes on a problem you have created
Awarded to the cyclist on 02 Mar 2012
Obtain 50 solvers for a problem you have created
Awarded to the cyclist on 08 Feb 2012
Publish your first comment or rating
Awarded to the cyclist on 09 Oct 2019
Publish your first submission
Awarded to the cyclist on 09 Oct 2019
Answer 10 questions that were unanswered for more than 30 days
Awarded to the cyclist on 20 Jul 2017
100 of your answers have been accepted
Awarded to the cyclist on 20 Jul 2017
Provide your first answer ever to someone else's question
Awarded to the cyclist on 20 Jul 2017
Create 10 problems
Awarded to the cyclist on 29 Jan 2012
Be the first to solve a problem
Awarded to the cyclist on 28 Jan 2012
Create a problem
Awarded to the cyclist on 28 Jan 2012
I want to solve a problem with just numbers from 0 to 2, how do I do that?
Are you sure you copied everything from the assignment correctly? Can you post the text of the assignment here? I did the Gauss...
2 dagar ago | 0
how to find index of matrix
It looks like you were checking the wrong columns. row = find (A(:,2)==9 & A(:,3)==5.125) Also, you need to use & rather than ...
3 dagar ago | 1
Index exceeds the number of array elements
This is not strictly an answer to your question, but I recommend learning how to use the debugger. Then you will be able to pinp...
4 dagar ago | 0
How to plot this figure? please help me.
I suggest you look for code for a similar figure in the MATLAB Plot Gallery.
8 dagar ago | 0
| accepted
How to reorganize an array given an index
Here is one way: % Inputs array = [1,2,3,4,5,NaN,NaN,NaN]; idx_flag = [1,4,8]; % Get length of array for convenience L = ...
8 dagar ago | 1
| accepted
How can I plot a histogram out of a vector of percentages
I don't think you want a histogram (which would create the percentages from the raw data). I think you just need a bar graph.
8 dagar ago | 0
| accepted
how to calculate distance euclidean
c(m,n) is the absolute value of the difference between the m-th element of the vector stored in a and the n-th element of the ve...
8 dagar ago | 0
My is my matrix can't multiply with this vector
Your variables tranposeA and y have sizes 2x4 and 1x4, respectively. It is unclear to me whether you wanted a matrix multiplica...
10 dagar ago | 0
| accepted
How to assemble 3D array from four vectors
Here is one way: G = reshape([FF; MF; FM; MM],2,2,6)
11 dagar ago | 0
| accepted
how to graph using loop?
Put the command hold on on the line after figure. See the documentation for the hold command for details.
11 dagar ago | 0
| accepted
How to arrange indices of a real array ?
Rankig = [ 0.6229 , 0.6516 , 0.2036 , 0.0997 , 0.5986 , 0.5897 , 0.7667 , 0.4887]; [~,Indexes] = sort(Rankig); [~,Indexes2...
12 dagar ago | 0
How to arrange indices of a real array ?
You are just interpreting the output incorrectly. [B, Indexes] ans = 0.7667 0.6516 0.6229 0.5986 0.5897 ...
12 dagar ago | 0
Finding unique slices of a multidimensional array
% Define a 3-d array of pretend data, that has a couple duplicate slices % (Use your data instead) rng default A = rand(2,2,4...
13 dagar ago | 1
| accepted
Cell returns different number of rows in a loop - How to align this?
Something like this should help: % Define the old and new phases info phases_old = {'eta';'mu'}; phases_new = {'eta';'mu';'mu...
14 dagar ago | 0
| accepted
How to calculate the slope of select data points across entire dataset?
Here is a straightforward method. I commented the code, so I hope you can follow the algorithm I didn't see how you wanted to c...
23 dagar ago | 0
| accepted
Why do i get tstat Inf after a linear regression?
The root cause is that your model is "perfect". The model is effectively y = b1 + b2*x1 + b3*x2 + b4*x1*x2 which means you hav...
26 dagar ago | 0
Hold on function doesn't work
The problem with your code is not with the hold command. The problem is the syntax to plot the line. You plotted a 1x200 vector ...
ungefär en månad ago | 0
Very confused about MLE
Let's step back to the big conceptual picture. The mle function is estimating the most likely parameters for a distribution of s...
ungefär en månad ago | 2
| accepted
How to show the plot with the highest value?
plot(h,max(abs(T1),abs(T2)))
ungefär en månad ago | 0
how to plot only one datapoint at a time with a 1 second delay from a dataset
Here is one way: TestPoints=[1 4 6;2 1 4;3 2 3;4 1 5;5 3 4;6 1 6;7 2 6;8 2 6]; figure for nr = 1:size(TestPoints,1) pl...
ungefär en månad ago | 0
| accepted
how to make intervals in a bar graph
Here is one way: w = 42.5 : 5.0 : 62.5; n = [4 12 13 6 5]; bar(w,n,'BarWidth',1) FYI, if you have the underlying ind...
ungefär en månad ago | 0
How to get a random vector whose elements arrangement is the same as that of my desired vector
Do you want something like this, which adds some random "noise" around the elements of u? u = [3 1 5 105 155 50]; m = 10; n...
2 månader ago | 0
Error using plot Not enough input arguments.
If you take a look at the documentation for the plot function, you will see that it cannot take cell arrays as input. I'm not e...
2 månader ago | 0
shuffle indexes when sorting matrix
One way that springs to mind is to add a small, random "jitter" to the values in the image. The jitter magnitude should be small...
2 månader ago | 1
| accepted
How to suppress this error?
Two thoughts: First: Are you certain you have the correct warning? After you run your code that gives the warning, what is the ...
2 månader ago | 0
Dot indexing is not supported for variables of this type???
Complete guess here. Are you simply trying to multiply the two variables? If so, then E(i).*tx(rr-1) Just using a dot, by itse...
2 månader ago | 0
How to interpret entries in documentation's left pane
In that left-hand pane, the following pages are at the same "level of the documentation hierarchy": Get Started with MATLAB Com...
2 månader ago | 1
Probability of Combinations Occurring
By "unique combinations", I assume you mean unique rows. Here is one way: % Example dataset. (Use your data instead.) x = [7 ...
2 månader ago | 0
multiplying scalar by matrix
In the exponentials, you missed an important set of parentheses, ensuring that you divide by the whole expression (lambda .* k ...
2 månader ago | 0
| accepted
Select a Web Site
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
Select web siteYou can also select a web site from the following list:
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)