Community Profile # the cyclist

### No strings on me

Last seen: Today 2011 이후 활성

Obsessive runner. Flâneur. 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
Spoken Languages:
English

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Histogram of overlaid standard normal draws
If you look carefully, you will notice that your bins are not at precisely the same locations. If you instead choose the exact b...

약 12시간 전 | 1

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How do I sum the elements in a vector up to a specific value?
Here is one way: v = [2,3,2,2,1,3,1,10,3]; prize = sum(v(1:find(v==10,1)-1))

약 13시간 전 | 0

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How to add iteration in a string (make multiple strings using iterations without indexing) ?
Here is one way: for i = 1:4 matlab = sprintf("png%d",i) end Here is another, but wanted to show the first way, which ca...

약 15시간 전 | 1

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Append rows to a starting row

약 17시간 전 | 0

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Obtaining a logic vector (?) from a logic array
A = [0 0 0 0; 1 0 0 0; 1 1 0 1; 0 0 0 0; 0 1 1 0]; v = any(A,2)

1일 전 | 0

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I want to generate a matrix of random numbers between 0 and 2.5 with length=8 and the sum of generated numbers be 20
Use the Random Numbers with Fixed Sum submission from the File Exchange.

3일 전 | 0

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Exclude certain dates on x-axis using xlim or xtick?
One possible solution to this would be to use a tiledlayout to plot each day in its own subplot.

4일 전 | 0

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How to combine multiple plots using subplot?
Prior subplots that would be overlapped by later plots are deleted. Try this simple on your local machine. figure subplot(3,1,...

6일 전 | 0

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write p-value into plot
You can use the text or annotation functions. The text function is easier, but the annotation function is more powerful.

6일 전 | 0

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Non linear regression: Matlab function similar to Excel solver ???
This very old question/answer from the Mathworks Support Team indicates that there is no MATLAB function for the generalized red...

6일 전 | 0

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Show free variables in solution(s) instead of zeros
A numeric matrix in MATLAB cannot hold an "x". You could change them to NaN: % Your solution M = [0, 0, 90.0, 0, 0, 0; ...

7일 전 | 0

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Predictions Logistic Regression model using fitglm
I have a couple of comments, before answering your specific questions. First, you might benefit by reading up a little bit on g...

7일 전 | 0

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Turning a char element in a double array
a = char('[21,12,43,1]'); array_convert = str2num(a)

7일 전 | 0

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How to replace only one instance in a certain string
If you are certain that the first e is the first character of the string, then this will do it: x = 'e-8.5e-5' y = regexprep(x...

7일 전 | 0

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read data of 3 dimensional matrix
% Some pretend data data = rand(129, 135, 365); % Max along 3rd dimension max3 = max(data,[],3); % Display size of max3 ...

7일 전 | 0

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Is there any more efficient way to split a table than this
% Set random seed for reproducibility rng default % Make up a table with pretend data N = 30; x = rand(N,1); solar = 200*...

7일 전 | 0

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Plotting y1 and y2 versus time in the same graph with same axis level but both in the same side and different y axis name.
Not sure what you mean about "mentioning both speeds in y axis". A more conventional method would be to use a legned. Does this ...

8일 전 | 1

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How to create animation of multiple of frames using for loop ?
I believe you can do what you want by using the getframe and movie functions.

8일 전 | 0

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Remake this without a loop
% Pretend data A = 1 : 7; vector = [2 3 5]; % Replace values of A with 0, if they are in vector A(ismember(A,vector)) = 0

8일 전 | 1

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I have been working on this code. But it's kept showing me this error. Please help me
How are you trying to run that code? If you just try to run those lines from the Command Window, it will give that error. The r...

8일 전 | 0

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Get next business day without taking into account holidays and saturdays
The issue is not a problem with busdate(), but with your understanding of the input. 20170610 is being interpreted as a serial d...

8일 전 | 1

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Using a GLM model to predict the response factor from a fixed factor
I'm very confused about how you have coded the model. Specifically, The first input to fitglm should be the predictor variable,...

11일 전 | 0

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Turning an entire script into a function
Put this code into a file named battleship.m function [] = battleship() clear all close all clc rowdim=input('give me...

11일 전 | 0

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kstest for uniform distribution
From the documentation: "The one-sample Kolmogorov-Smirnov test is only valid for continuous cumulative distribution functions."...

13일 전 | 0

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Using Linear Mixed Models with two fixed factors and a random factor
You can fit such a model using the fitlme function from the Statistics and Machine Learning Toolbox. I think the following code...

14일 전 | 1

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How to find area under curve
I did not open your text file, but assuming you got that plot using plot(x,y) then it should be as easy as trapz(x,y)

17일 전 | 0

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How to bin IDX based on previous IDX value?
Is this what you mean? a = [0 0 1 2 2 1 2 2 1 0 1 0 2]; loc2 = a(2:end)==2; pre = a(1:end-1); b = 1 + find(loc2 & (pre=...

18일 전 | 0

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how do we make vector the same length ( i get the error: vector must be the same length)
I think you intended elementwise division. See the documentation for array vs. matrix operations. x=linspace(0,100); y=linspac...

19일 전 | 0

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I have this code in matlab but it does not work alone. I think I need a script for it.
Works for me. Here is an example f = @(x) x.^2 - 1; df = @(x) 2*x; Newton_method(f,df,3,1.e-6,500) function x = Newton_...

20일 전 | 0