93:06

A colleague asked if I could extract a date string from a set of MATLAB Answer pages. I’ve often needed to extract patterns from random web pages and have written scripts to do so, so I thought I would build a MATLAB App to do this. Eventually I will turn… read more >>

9:52

I have a table with many columns, some of which are stings. I want to set all the string values to a constant string.
Features covered in this code-along style video, which is less coherent than usual, include:

table, string, and repmat

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2:53

I have a for loop that is transforming my data in a way I did not expect, so I use a conditional breakpoint to stop when my data changes, helping me get closer to the cause.
Features covered in this code-along style video include:

Conditional breakpoints

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11:14

I’m going to make some edits to another MATLAB function while stopped at a breakpoint, so the variables are available to exercise the new code. In this case, I need to update a function to take an additional parameter.
Features covered in this code-along style video include:

addvars
Block comments

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5:57

I often will edit code while stopped at a breakpoint. This lets me have all variables available to process and test the new code. However, if you continue execution of the debug session, MATLAB will not know about your edits. You still need to quit debugging to re-run the whole… read more >>

20:51

I’m going to try to use inputparser for the first time, to specify name-value pair parameters for my function.
Its been around for several years but I haven’t used it. Typically my functions are “old school” where parameters need to be in certain positions. I use varargin for optional additional parameters,… read more >>

19:12

One of my continuously running MATLAB scripts just failed and has stopped at a breakpoint (I had set dbstop if error). So I need to debug it to understand why and fix it.
Features covered in this code-along style video include:

string arrays and processing with split, ismember, extractBefore
arrayfun
Debugging in general

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33:35

I often export to Excel to share results with others. In doing so I control the format of the output with a template with column widths and heading colors that I have talked about in previous videos (saving to a template, replicating a worksheet template). However, if I change the… read more >>

16:09

I have a table of logical data, with only one true in a row. I want to find the variable name (column header) for each row where the value is true.
Features covered in this code-along style video include:

find
Table indexing

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28:06

I have a folder full of video files (MP4s) which I want to move based on their content. Specifically, if the file has no blank sections at the beginning or end I want to move it to another folder. So I need to read some frames from file and moved… read more >>