HYZ
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Accept 20 answers given by other contributors
Awarded to HYZ on 06 Sep 2022
Feeds
Question
Triggeractivation error in image acquisition toolbox
Hi, I tried to record a video using Image acquisition toolbox. src.TriggerActivation threw an error as below: Attempt to modif...
meer dan een jaar ago | 1 answer | 0
1
answerQuestion
0.48 and 0.72 not detected in the array
Hi, I have attached varmat.mat. In this array, I can find any other elements in the array using find (SessionData.CoherenceType...
bijna 2 jaar ago | 1 answer | 0
1
answerQuestion
Remanding integer from exponential distribution with mean
Hi, I found out exprnd() can generate random number from exponential distribution function with mean. Could anyone suggest how t...
bijna 2 jaar ago | 1 answer | 0
1
answerQuestion
Outputs for function in class method
Hi, I have a script with classdef and method. the below is the structure of the script. I woud like to create mymatrix from...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
converting coordinates into pixel
Hi, I have a 3D vector attached here (Mydots.mat). the first dimension is the number of spots, the second is the x,y coordinate...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
converting uint8 to double in a faster way
Hi, I would like to convert to uint8 array to double. I attached the struct temp.mat here which contains unit8 for 60 frames. i...
ongeveer 2 jaar ago | 2 answers | 0
2
answersQuestion
simulate a keypress in a loop
Hi, I want to simulate a keypress to trigger a new trial on Psychopy. the first keypress did work to trigger but the subsequent...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
Exiting: Maximum number of function evaluations has been exceeded
Hi, I used ezyfit for gaussian functions. I got such errors. Exiting: Maximum number of function evaluations has been exceede...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
checking folder has more than one file with similar name
Hi, I want to check if a folder has files starting with same name. Eg in a folder, there are files ('test01.mat' , 'test02.ma...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
Adding polar plot to axes is not supported
Hi, The code works most of the time. sometimes, it showed error "Adding polar plot to axes is not supported" and I closed the ...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
Curve fitter app with custom function
Hi, I have a gaussian function y=A*exp(-(x-mu).^2/(2*sigma^2)). I want to use custom equation in curve fitter. The default sett...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
only saving last image
hi, this is my code. Figures are plotted correctly but only the last " i " image was saved for all iterations. Please advise whi...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
transparent grey bar on graphs
Hi, I would like to draw a grey bar to emphasize when the signals were triggered like in the picture. Should I use patch functio...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
saving in new folder by using saveas
hi, this is my code. I would like to save all images from saveas into polar plots folder which was created in the current direct...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
finding mean in 3D cell array
hi, I have a cell B which is 2x3x2. B( :, :, 1) = A; B( :, :, 2) = A; A = {[1,2,3, 4] [5,6,7,8] [9,10,11,12] ; [4,3,2,...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
calculate mean each element in each cell in a cell array
hi, I have a cell A = {[1,2,3, 4] [5,6,7,8] [9,10,11,12] ; [4,3,2,1] [8,7,6,5] [12,11,10,9]}. I wanted to average ...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
splitting Cell array in a loop
Hi, I want to split X into Y, a 1 x 4 cell. Y will be {[1:8]} {[9:16]} {[17:24]} {[25 32]}. thanks. X = 1:32; Y = cell (1,4);...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
fitting a customised guassian equation to the curve
Hi, I have X, Y so I can plot (X,Y). I have a customised gaussian equation σ ⋅ sqrt(2 * log(2)). Please suggest how I can...
meer dan 2 jaar ago | 1 answer | 0
1
answerQuestion
removing values, connect lines and change thickness of border in a polar plot
Hi, I used polarplot function. (i) I would like to remove the rho values suchas 0, 100, 200, 300. (ii) I also want to draw a...
meer dan 2 jaar ago | 1 answer | 0
1
answerQuestion
Fusing one rgb image with one grayscale image using imfuse function
Hi, I used imfuse to combine one rgb image with one grayscale image. After fusing, the rgb image became dimmer. Please suggest h...
meer dan 2 jaar ago | 1 answer | 0
1
answerQuestion
open .seq files
Hi, I have installed Piotr toolbox from https://pdollar.github.io/toolbox/ to open .seq file. Then I tried to open .seq file on...
meer dan 2 jaar ago | 1 answer | 0
1
answerQuestion
Plot power spectrum from FFT
Hi, I want to plot power spectrum using FFT. I use the below code but I didn't get the spectrum and instead I got the below gra...
meer dan 2 jaar ago | 0 answers | 0
0
answersQuestion
draw line graphs connecting two points
Hi, I want to draw somthing like this. Can I know how to connect two points? thanks.
meer dan 3 jaar ago | 1 answer | 0
1
answerQuestion
fprintf a cell array
I have a cell array with columns of different lengths. I want to fprintf each column into different columns in excel. Please h...
meer dan 3 jaar ago | 0 answers | 0
0
answersQuestion
Linear transformation 2D
Hi, I have two vectors for x and y coordinates. x = [-2, -1, 1]; and y = [-3, 0, 1]. the black dots are position values record...
meer dan 4 jaar ago | 0 answers | 0
0
answersQuestion
replacing element which are <= previous element with NaN
Hi, I have a vector x = [1 2 3 4 3 2 3 4 6 8 5 5 6 8.5 9 11 12 ]; I want to replace any element which are less than or eq...
meer dan 4 jaar ago | 1 answer | 0
1
answerQuestion
saving images in loop
Hi, frateMaps is a cell array. I would like to save images for each vector in frateMaps. I could see the images for each loop ...
meer dan 4 jaar ago | 1 answer | 0
1
answerQuestion
keep element greater than immediate previous element
Hi, x = [1 2 3 4 3 2 3 4 6 8 5 5 6 8.5 9 11 12 ]; I want to keep one vector whereby the next element is greater than th...
meer dan 4 jaar ago | 2 answers | 0
2
answersQuestion
Error for exceeding the loop
Hi, I have d = {[5:10] [20:30]}; e = [1 2 7 8 9 11 12 15 16 22 25 30 35 40 45]; I want to extract values from e which falls i...
meer dan 4 jaar ago | 1 answer | 0
1
answerQuestion
cell array in a cell array inexing
Hi, a = { [1:30] }. A {1} = { [1 2 3] [11 12 13] [21 22 23] }. A is resulted from a by extracting values from a. b = { [41...
meer dan 4 jaar ago | 1 answer | 0
1
answer
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