Jan Orwat
StethoMe
Followers: 0 Following: 0
Python, R, MATLAB
Spoken Languages:
English
Statistics
RANK
930
of 300.379
REPUTATION
84
CONTRIBUTIONS
2 Questions
34 Answers
ANSWER ACCEPTANCE
100.0%
VOTES RECEIVED
16
RANK
15.181 of 20.931
REPUTATION
12
AVERAGE RATING
3.00
CONTRIBUTIONS
1 File
DOWNLOADS
1
ALL TIME DOWNLOADS
124
CONTRIBUTIONS
0 Posts
CONTRIBUTIONS
0 Public Channels
AVERAGE RATING
CONTRIBUTIONS
0 Highlights
AVERAGE NO. OF LIKES
Feeds
How to fit a different scale to an existing plot
Check if <http://www.mathworks.com/help/matlab/creating_plots/plotting-with-two-y-axes.html this article from documentation> hel...
ongeveer 9 jaar ago | 0
I'm trying to count the number of times the gui is being run on clicking a pushbutton. How to make the count continue even after the application is closed and started again. (i.e) if the count is 8 before closing ,it should start from 9 the next time
You may specify delete function which will be called each time application/gui is closed. Using this you may save all the variab...
ongeveer 9 jaar ago | 0
| accepted
How to remove a pattern in a table column
assuming T - your table, and n - number of column containing these strings you can do as follows: T{:, n} = regexprep(T{:, ...
ongeveer 9 jaar ago | 2
| accepted
How to do a fft from a sine signal with hanning function
You can try starting with something like this fs = 44100; % sampling frequency T = 1; % period, 1 second n = T*fs; ...
ongeveer 9 jaar ago | 0
Working and non Working hours
Yes, you can. For example: % assuming your data in variable called datecolumn daytime = timeofday(datecolumn); openi...
ongeveer 9 jaar ago | 1
| accepted
Algebra function with table and vector
If you want to work on tables in MATLAB functions <http://www.mathworks.com/help/matlab/ref/varfun.html varfun> and <http://www....
ongeveer 9 jaar ago | 1
Interpolation and getting errors
Note, you are trying to access |time(0)| when |t<30|. Matlab index arrays starting with 1. Probably changing |floor(t/30)| to |...
meer dan 9 jaar ago | 0
| accepted
how can I join points along a two plots with straight lines?
add at the end something like that: hold on plot(reshape([x,x,x].',1,[]),reshape([ytop,ybot,ytop*NaN].',1,[]))
meer dan 9 jaar ago | 0
| accepted
Please how can I unstack a column of negative and positive values into 2 columns of positive and negative values respectively?
You can compare your data with zero. This will classify your data and you can use it to get what you want. Example based on y...
meer dan 9 jaar ago | 0
How do I set my axis values down to zero when changing my y-axis to log scale?
There is no zero on log scale. Add one line on the end of your code: ... set(gca,'yscale','log') ylim([0.4, 3]...
meer dan 9 jaar ago | 0
FFT and IFFT Problem (numerically and analytically result is not same)
This is caused by side effects of digital domain # You are calculating circular convolution instead of normal one. To make co...
meer dan 9 jaar ago | 0
| accepted
Creating HDF5 file: How to create a GROUP inside a GROUP?
Use <http://www.mathworks.com/help/matlab/low-level-functions.html Low-Level Functions> such as H5G.create to create custom/nest...
meer dan 9 jaar ago | 0
| accepted
What are the disadvantages of using uppercase 'W' in fopen compared to lowercase 'w'
I guess some memory is used for buffering purposes. There should not be *any* differences in written data. 'W' or 'A' are faste...
meer dan 9 jaar ago | 1
What is wrong with my code
Are _TH_max1:3_ scalars, vectors or arrays? _&&_ and _||_ may be used only with scalars. Try: if(all(TH_max1(:) >= 0.4) && ...
meer dan 9 jaar ago | 0
how to find integral for this function
In MATLAB there is a difference between calling |*| and |.*| The same is for |^| |.^| etc. Change * |*| to |.*| * |/| to...
meer dan 9 jaar ago | 0
Using ifft to get the Fourier Coefficient
N=256; X=2*N; L=2*pi; x=linspace(-pi,pi,X); c=0; k = 2*pi*((1:2*N)-N-1)/L; % vectorised y = sin(x); % don't understand w...
meer dan 9 jaar ago | 0
Exporting table to excel
You don't have to join tables before exporting them. You can just create spreadsheet and then add other data in other sheets or ...
meer dan 9 jaar ago | 3
| accepted
Dividing matrix in four parts
A = zeros(210,3); %example split = [40 60 30 80]; A_split = mat2cell(A,split); [B, C, D, E] = A_split{:}; doc mat2...
meer dan 9 jaar ago | 0
Could someone please help me speed up my code?
# If you have to use loop, <http://nl.mathworks.com/help/matlab/matlab_prog/preallocating-arrays.html preallocate> variable _RMS...
meer dan 9 jaar ago | 1
How to rank a vector with repeats without MATLAB unique?
Do you want to replicate following behaviour? [~, ~, rank] = unique(data); rank = rank.'; There are thousands of ways...
meer dan 9 jaar ago | 0
I have problem of ode45. please help me T_T
1. It seems your function rocket.m represents system of equations dH₁ = H₂ dH₂ = aH₁² + 127530 Verify, if it's what y...
meer dan 9 jaar ago | 0
Problem with categorical arrays
(Copied from comments as suggested.) You are trying to make categorical array from a variable of mixed data types. categ...
meer dan 9 jaar ago | 1
| accepted
I have a n X 2 matrix, but I want remove the points with a distance smaller than a threshold. And the data is random, which means the data position may be very far in the matrix but their distance is very close. Can anyone help me?
dataOut = uniquetol(dataIn, tolerance, 'ByRows', true); Above code should be a good starting point. In this case it would b...
meer dan 9 jaar ago | 0
| accepted
Is there a way for breaking a loop iteration, if it takes to long?
One of the simplest ways for time control is to use tic and toc time0 = tic; timeLimit = 60*60*1; % 1 hour == 3600 secon...
meer dan 9 jaar ago | 1
Why are title and x/y lable not listed in Children property of axes?
The answer is that those aren't axes children. Here is documentation page that mention it: <https://nl.mathworks.com/help/matla...
meer dan 9 jaar ago | 0
Rotate Meshgrid 45 Degrees
theta = 45; x2 = x*cosd(theta) - y*sind(theta); y2 = x*sind(theta) + y*cosd(theta);
meer dan 9 jaar ago | 0
Question
Circshift bug for sparse logical.
Hello, does anybody know if it has been reported? Circshift seems to shift sparse logicals properly, but changes trues to fal...
bijna 10 jaar ago | 1 answer | 3
1
answerHow do i get index of a closest value from an array?
Try something like this: divisor = 900; how_close_is = abs(mod(a+divisor/2,divisor)-divisor/2); index_chunk=find(how_...
meer dan 10 jaar ago | 0
repalacement of string with phone numbers
You can try <http://www.mathworks.com/help/matlab/matlab_prog/regular-expressions.html?s_tid=srchtitle regular expressions>: ...
meer dan 10 jaar ago | 0
Concatenate Columns of Cells
Hello, I can see that date is of type string in your cell array and non-date fields are zeros (non-string). Assuming that in ev...
meer dan 10 jaar ago | 0
