Question

Merging strings in a table
I'm trying to merge two columns in a table. I tried this: L = readtable( fileLog ); L2 = mergevars(L,["Var2","Var3"]); But th...

1 year ago | 2 answers | 0

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Question

Convert numeric 2D array to array of orders of values
I have an array of numbers, like this: positions = 14 25 65 20 16 15 17 16 14 26 46 ...

1 year ago | 1 answer | 0

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Question

I have a bunch of text files with dates and times. Some of them are like this (there is a space at the end of each line): 2022...

1 year ago | 1 answer | 0

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Calculate spectrogram with logarithmic-spaced frequencies
After some more research, I think it's impossible to do what I want with the spectrogram function. I think it only works with a ...

1 year ago | 0

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Question

Calculate spectrogram with logarithmic-spaced frequencies
I'm trying to calculate a spectrogram where the frequencies are logarithmicaly spaced, instead of the usual linear. I think my ...

1 year ago | 2 answers | 1

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Question

I have a matlab script that runs as a cron job on Linux. A few days ago, the script started failing. I traced it to the copylink...

2 years ago | 1 answer | 0

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Question

yyaxis 'right' - can I have tick marks on both sides?
I'm creating a figure to illustrate data availability/quality. It's one plot with no subplots. See attached. I add a small plot...

2 years ago | 0 answers | 0

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Question

Simple interactive plot with variable time axis
I have a plot containing three subplots, all of which have date/time as the x axis. Whats the easiest way of making this plot i...

2 years ago | 1 answer | 0

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Question

Calcuating equally-spaced sums from unevenly-spaced time-series data
I need to create an equally-spaced vector of values which are the sums from a vector of unequally-spaced values. More specifica...

2 years ago | 1 answer | 0

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Question

How can I add an index value to an array value?
I have an array of reals, like this. 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.1 0.2 0.3 0.4 How can I add the horizontal i...

2 years ago | 1 answer | 0

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Question

Default date format for plot tick labels
Is it possible to set a default format for datetick labels? Sometimes MATLAB gives me "mm/dd" when I prefer "dd/mm". I could e...

2 years ago | 1 answer | 1

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Question

I'm trying to read a lot of text files using readtable. All the files have 7 columns of data, although the last column is usuall...

2 years ago | 1 answer | 0

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Question

Testing for a string in a cell array in a structure
I want to find the matches to a string in a cell array of strings which is part of a structure. Strcmp works when I give it th...

2 years ago | 1 answer | 0

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Question

spectrogram - auto settings for zlim are too wide
Using the spectrogram function, the zlim settings that are created automatically seem to be too wide for my data. The resulting ...

2 years ago | 2 answers | 0

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Question

datenum on array of values - specifying the format
I can't seem to specify the format for datenum when I passi an array of values. Here is a snippet of my code: formatIn = 'dd/m...

2 years ago | 1 answer | 0

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Question

Reading dates/times from a text file
I want to read all the dates and times from a text file into an array of serial date numbers. I've always done this in the past...

3 years ago | 1 answer | 0

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Question

Is it possible to add a margin to figures saved using the exportgraphics function? It crops a tad too tightly for my needs.

3 years ago | 2 answers | 6

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Question

How can I correct for gaps in an supposedly evenly spaced array
I have two one-dimensional arrays, data and datim, the latter containing date values. These are large arrays containing a days w...

4 years ago | 1 answer | 0

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Question

Where are the default font settings for sgtitle?
I'm trying to set default values to apply to number of plots, like this set(groot,'DefaultAxesFontSize', 20); ...

4 years ago | 1 answer | 0

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Question

External GPU (MacOS) makes Help painfully slow
I have added an external Radeon RX 570 GPU to my 2019 MacBook Pro running MacOS Catalina. I enabled "Prefer external GPU" in Ge...

4 years ago | 0 answers | 0

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Question

How can I implement an associative array?
What is the best (ie simplest) way to implement an associative array (in Perl, a hash) in MATLAB? I have a number of keys (stri...

4 years ago | 1 answer | 0