Question


Finding change in a large dataset
Hello everyone, I have a data file (1288753x1) as shown above (data attached) I am trying to find the y value at the red ci...

casi 3 años ago | 2 answers | 0

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Answered
How to know which radio button is selected in a radio button group in app designer of Matlab 2018a?
" no other radio button has the property 'value' " Every radiobutton has the property Value. In this case app.RightButton.Va...

casi 3 años ago | 0

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Answered
comparison of vectors and reducing size
doc interp1 use linear interpolation, to upsample or downsample the vector to any length required A = rand(299,1); B = rand(4...

casi 3 años ago | 1

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How to make scatter plot graphs ?
doc scatter use hold on if you want to plot 3 datasets in a single plot.

casi 3 años ago | 0

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Problem with Matlab gui quitting
Try this: write countdown(app) instead of app.countdown in startupFcn.

casi 3 años ago | 0

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How to cut the signal at particular time or tol value ??
load signal load t S = signal(1,:); tol = 0.5/2310; plot(t,S); [minDistance, indexOfMin] = min(abs(tol-t)); newt = t(1:ind...

casi 3 años ago | 1

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Answered
App designer - How To Re-Run an app
close all deletes all the variables in the workspace, making the previously stored attributes inaccessible. Try commenting out ...

casi 3 años ago | 0

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Bubble sort for loop
First try to understand the sorting algorithm. There are many videos on youtube that explains bubble sort. Your data being x....

casi 3 años ago | 2

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Answered
Send plots from matlab script to UIAxes in Appdesigner
Try to create an axes in app designer using uiaxes. example: ax = uiaxes(....) Then, when plotting pass this ax as first parame...

casi 3 años ago | 0

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Answered
build an array within the loop
You are not creating Th3 array but overwriting it everytime. Try this for i=0:360 d =3.5; a = 1;b = 2; c = 4; Th1= 0; Z = ...

casi 3 años ago | 1

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How to add a datetime array to addpoints for an animated line plot?
Try this: Convert the datetime values to numbers using datenum. Fetch these datenum values as x parameter to addpoints. While...

casi 3 años ago | 1

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How to find specific changes in my curve?
doc ischange

casi 3 años ago | 0

Question


Figure menu workaround in matlab standalone application
Hello everyone. I have created an app(which plots some variables) using app designer and packaged it as a standalone app and in...

casi 3 años ago | 0 answers | 0

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How to open a image in App Designer
Use callbacks. When you click open button, write code in OpenButtonCallback to open the image and display on the left side of I...

casi 3 años ago | 0

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importdata not reading time stamp from excel sheet accurately
The default date for excel is 1899/12/30_00:00:00. So you have to add this to the date number to get the correct date. Try this...

casi 3 años ago | 0

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Answered
Splitting one column into multiple arrays
z=xlsread('data.csv'); ids = unique(z(:,1),'stable'); houses = cell(length(ids),1); house = struct(); for i = 1 : length(i...

casi 3 años ago | 0

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Answered
how to plot two signal before convolve?
t1 = linspace(0, 1); for i=1:length(t1) if (0<t1(i)) && (t1(i)<1) x1(i) = 1; else x1(i) = 0; e...

casi 3 años ago | 0

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how to determine index number and equate to x and y?
index_10s = find(A==10);

casi 3 años ago | 0

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converting 1 hourly data to 3 hourly data
data = xlsread('www3'); data = data(:,2); j=1; try for i = 1: fix(length(data)) newdata(i) = mean(data(j:j+2));...

casi 3 años ago | 0

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How do you erase rows from matrix based on specific values in the row using loop control?
doc find. x1=1; x2=1; for i = 1:length(J) if find(J(i,:)==77) matrix1(x1,:)=J(i,:); x1=x1+1; else...

casi 3 años ago | 0

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How to take monthly flow data and obtain annual max flow values
Your data being X, data = X(:,2); yearly_max = zeros(length(data)/12,1); j=1; for i=1:length(data)/12 yearly_max(i)=max...

casi 3 años ago | 0

Question


Upsampling the data using interpolation gives NaN values.
Hello everyone, I have the data of size 2173x1. I want to increase the number of samples to length of 2225570x1 using interpola...

casi 3 años ago | 1 answer | 0

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answer

Question


Moving average filter for large dataset
Hello everyone. I have a large dataset with for eg. 3500 Hz (i.e 3500 samples every second) for lets say 10 minutes. so in tota...

casi 3 años ago | 1 answer | 0

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answer