jkr

Last seen: 3 days ago | Active since 2016

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10 Questions
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Question

trouble with Ask a Question
The interface to Ask a Question does not work in Safari. Here, I am using Firefox instead, but I shouldn't have to. It has worke...

10 days ago | 1 answer | 0

1

answer

Answered
How to Use "Ask a Question" Section Correctly?
Another issue: on a Mac, using Safari, when I try to enter a question, the Ask a Question interface first asks for a brief descr...

10 days ago | 0

Answered
unhelpful error message when an 'end' is left off, or an extra one is left in while editing
Actually, an answer provided by another community member (Walter Roberson) turned out to get more directly to the point: https:...

18 days ago | 0

Question

unhelpful error message when an 'end' is left off, or an extra one is left in while editing
When editing a matlab function I am writing, I occasionally make an error (gasp). When that involves leaving in an extra or leav...

19 days ago | 2 answers | 0

2

answers

Question

how to provide feedback to MathWorks about an issue in Matlab
Matlab is great, but not perfect. I have a minor issue I would like to communicate to the developers. I don't need an answer, I ...

19 days ago | 1 answer | 0

1

answer

Question

Will Dropbox new use of Apple file API make things difficult for me?
Dropbox is notifying of a new version for macOS that uses an Apple file system API for security. I am concerned that the file AP...

2 years ago | 1 answer | 0

1

answer

Question

Matlab 2023 release of Datafeed Toolbox, with function "signals" breaks - well, so much
I have built a large database with records that use the name "signals" for an internal struct. This has worked fine for years. I...

2 years ago | 2 answers | 0

2

answers

Question

table sort now requires dialog to select ascending or descending order
As of R2021a, attempting to sort a table by a column now pops up a dialog to specify whether to sort in ascending or descending ...

3 years ago | 0 answers | 0

0

answers

Answered
How to check whether a column exist in a table?
sum(ismember(mx.Properties.VariableNames,'NameYouWantToCheck')) returns 1 if found, 0 if not

6 years ago | 4

Question

join tables based on string in one cell in the other
I have 2 tables, call them foo and bar. foo has strings in the form "foobar" in column 1. bar has strings in the form 'foobar' i...

7 years ago | 1 answer | 0

1

answer

Answered
plotSlice - what are the numbers below the plots?
The coefficients in the model represent the impact of each variable on the model. They are not statistical measures. Moreover, t...

7 years ago | 0

Answered
Zscore a matrix with NaN
A simple approach for a vector 'x': zscore = (x - nanmean(x))/nanstd(x);

7 years ago | 5

Question

Close (all) Variable Editor windows?
During development I often open many figures (plotting variables of interest) and many Variable Editor windows, often digging se...

7 years ago | 2 answers | 1

2

answers

Question

Why is Bayesian regularization backpropagation (Neural Network Toolbox) so very very slow?
Empirically I've found with a challenging pattern recognition problem I'm working on, that Bayesian regularization backpropagati...

8 years ago | 2 answers | 1

2

answers

Question

how to control duplicate function names
I am using the Neural Network toolbox and attempting to determine how a trained patternnet would classify some test data. The do...

8 years ago | 1 answer | 0

1

answer