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C.G.


Last seen: 1 day ago
20 total contributions since 2020

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Question


changing the name of multiple csv files in a folder
I have a folder containing 3000 csv files. All of these are named in the format: cor0.1 sc10 fc0.1_0.csv. I want to change the ...

22 hours ago | 2 answers | 0

2

answers

Question


plot graph from cell array
I have loaded 15 excel files into matlab and saved them all as a 15x1 cell. My aim is to create 15 graphs, showing the contents...

5 days ago | 1 answer | 0

1

answer

Question


saving the data in a variable
I have a code which imports a set of csv files from an experiment, and processes this to find out how many particles leave a sys...

5 days ago | 1 answer | 0

1

answer

Question


using grabit with log scales
I have used 'grabit' from the matlab file exchange, to extract the data from a published graph to compare with my own data. The...

2 months ago | 1 answer | 0

1

answer

Question


length of a signal when doing fft and power spectrum analysis
I am undertaking experiments on a sandpile to understand self organised criticality and therefore want to plot a power spectrum ...

2 months ago | 0 answers | 0

0

answers

Question


for loop to go through a cell array
I have written a code which tells me how many particles go past a certain x-coordinate for a single time step. The code accesses...

2 months ago | 1 answer | 0

1

answer

Question


displaying the total number of times an if statement is true
I have a for loop with an if/else loop nested inside this: xc = particledata{1}(:,5); xc_array = table2array(xc); for b = 1...

2 months ago | 1 answer | 0

1

answer

Question


for loop through a cell array
I have a 2001x1 cell array containing the data from 2001 .csv files. Each cell in the array contains the data for 1 time step of...

2 months ago | 1 answer | 0

1

answer

Question


indexing in for loop
I am working off a video of 662 continuously moving footballs and I want to track these through 10 frames in the video. I have ...

8 months ago | 0 answers | 0

0

answers

Question


for loop not working
I have 2 frames of a video containing 700 balls. I want to create a series of subimages, defined by the coordinates of the ball...

8 months ago | 1 answer | 0

1

answer

Question


assigning centroids to xy coordinates
I have identified the centroids of a series of circles on 2 frames of a video. I have tried to compute the distance between th...

8 months ago | 1 answer | 0

1

answer

Question


error indexing must appear last
I have a code which tracks a series of footballs in a video. I have found the coordinates for the balls in the video, and now I...

8 months ago | 0 answers | 0

0

answers

Question


cropping an image using centroids
I have an image of multiple footballs, where I have located the centroid of each football in the image. I want to crop the ima...

8 months ago | 1 answer | 0

1

answer

Question


finding points in a video
I have a video of a series of footballs. I have plotted the centroids of each football in each frame, which has allowed me to wo...

8 months ago | 1 answer | 0

1

answer

Question


tracking the rotations of a translating ball
My code tracks the translation of a series of footballs and plots velocity, but now i want to track the rotation of the balls an...

9 months ago | 0 answers | 0

0

answers

Question


displacement of particles in a video
In my code, it reads a video and converts it to a number of instantaneous frames. Then it binaries the balls and finds the centr...

10 months ago | 1 answer | 0

1

answer

Question


calculating velocity from centroids
I have a code which calculates the position of centroids of multiple particles through each of the video frames. I am now trying...

10 months ago | 2 answers | 0

2

answers

Question


motion tracking multiple objects
i am trying to motion track multiple mini footballs. I generated a code to track 1 object using youtube, but im struggling to se...

10 months ago | 1 answer | 0

1

answer

Question


video in a figure
I have imported a video into MATLAB but when I play this in a figure, the figure dimensions are different to that of the video. ...

10 months ago | 2 answers | 0

2

answers

Question


for end loop variable not saving
I am relatively new to coding, and I am trying to track a ball on a pendulum following an example i found online. However, in o...

11 months ago | 1 answer | 0

1

answer