Community Profile

photo

Louise Wilson


16 total contributions since 2019

Louise Wilson's Badges

  • Thankful Level 2

View details...

Contributions in
View by

Question


Calculate RMS SPL of long term acoustic data
I have a large data set of recordings which are each 2 minutes long. This data is in a matrix of dB values, where each row repre...

18 days ago | 1 answer | 0

1

answer

Question


How to use pwelch for PSD?
I would like to use pwelch to perform PSD on my long term acoustic data. The data is 120 seconds long, sampled at 144kHz. How ...

1 month ago | 0 answers | 0

0

answers

Question


How to calculate PSD estimate of acoustic data in 1Hz bins? pwelch?
Hi everyone, I have several files of 118.5 second duration that I would like to calculate the PSD of. I want to do this in 1Hz...

1 month ago | 0 answers | 0

0

answers

Question


Basic fir1 question-what is N?
HI everyone, I am working through code from a colleague (retired) and slowly interpreting what everything means as I learn matla...

1 month ago | 1 answer | 0

1

answer

Question


How to change the working directory as code progresses...
Hi all, I have two functions that I would like to run on a folder of files. The first 'GetFrames(x)' takes a folder of .avi fil...

1 month ago | 1 answer | 0

1

answer

Question


Burn Grid onto a Series of Images
Hi all-I have a lot of image files and onto each I am trying to place a grid. I'd like to save the grid onto the file, and so pr...

2 months ago | 1 answer | 0

1

answer

Question


Batch process AVI files into PNG/JPG
Hi all, I am working with a large dataset of .avi files which I need to split into .png for further analysis. From previous que...

2 months ago | 1 answer | 0

1

answer

Question


Faster way to draw bounding box around object in an image?
Hi everyone, I am new to Matlab and this is my first attempt at image processing. I want to count the number of boats in a larg...

3 months ago | 0 answers | 0

0

answers

Question


How to ensure my times will follow daylight savings?
Hi everyone, I am working on a piece of code which will allow me to reduce a dataset, and part of this requires converting sepa...

4 months ago | 2 answers | 0

2

answers

Question


How to convert column datetime to datenum?
HI everyone, I have a .csv file with a datetime column, in the format 'yyyy/m/d hh:mm:ss', for example: '2019/5/2 10:21:25'. S...

4 months ago | 1 answer | 0

1

answer

Question


Apply Function to a Variable in Timetable
Hi everyone, I have been using the 'rowfun' helpfile but I can't get this to work. https://au.mathworks.com/help/matlab/ref/ro...

4 months ago | 1 answer | 0

1

answer

Question


For Loop: How to add string to matrix?
Hi everyone, I am new to Matlab, and I think I am on my way with this first problem but having a few issues. Here is what my o...

4 months ago | 0 answers | 0

0

answers

Question


Convert Date to DATENUM format
Hi everyone, I have a .csv file with a list of dates in column 3 which I would like to convert to datenum format. I'm new to m...

4 months ago | 1 answer | 0

1

answer

Question


For Loop Dimensions Not Consistent Horzcat
Hi everyone, I am new to Matlab and working through code I have found to understand each step. You can see my comments describi...

4 months ago | 1 answer | 0

1

answer

Question


Bandpass Filter BPFILT-Does this function still exist?
I have some code that uses bpfilt to apply a bandpass filter from 10 - 100 (presumably kHz): flo=10; fhi=100; ...

4 months ago | 1 answer | 0

1

answer

Question


Writing Code for Identifying Objects in a Photo
Hello, I am new to Matlab but I want to learn how to write code which will enable me to analyse thousands of photos. The photos ...

6 months ago | 1 answer | 0

1

answer