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Plotting bar graph from website
Marcus, it looks to me like what you have is a year-by-month array. As others have said, those bars are mightily thin. Have you...

bijna 2 jaar ago | 0

Answered
Trouble with date conversion
Worth saying that if the file was a spreadsheet and contained things like 20230101 as numeric values, there's a conversion for t...

bijna 2 jaar ago | 1

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How to get columns as 'struct' in timetable
Ludo, I'm not 100% sure I follow your question, but lemme take a shot. As Stephen shows, a variable in a table can be a struct ...

bijna 2 jaar ago | 1

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How to get columns as 'struct' in timetable
For the record, you are correct that timetable is the recommended way to work with timestamped data, but there are no plans to a...

bijna 2 jaar ago | 1

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Plotting double vs datetime (DD-MM-YY), only the year is used from the datetime
Paul, in addition to what Walter said, those mat files each contain a bunch of 23041xN variables. Likely you would benefit from ...

bijna 2 jaar ago | 0

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Answered
How to update leap seconds
James, there's no way for customers to update MATLAB with new leap seconds. The IERS data is built into a binary file. The last...

ongeveer 2 jaar ago | 0

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How to find differences between 2 large tables that have a mix of string and numbers?
I thnk looping over every row in the tables will not be very performant. I would think this will do better: matches = false(siz...

meer dan 2 jaar ago | 0

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Importing data from Delsys Trigno software .csv
If you really have a csv, if it really has variable names spread over two lines, user NumHeaderLines to tell readtable to skip e...

meer dan 2 jaar ago | 0

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How to use groupsummary to group by hour-of-year
Is this really "hour of year", a value that runs from 0 to 8784? In the same way that day of year is just dt = datetime(2023,7,...

meer dan 2 jaar ago | 0

Answered
mean of all these variables over latitude x longitude x time that is (5 x 5 x 2)
It's very likely that you should be using a timetable. You have "eight variables loaded with data (latitude,longitude,time,mont...

meer dan 2 jaar ago | 0

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How to calculate the date 0.25 years after the date of January 15, 2020
This is a long thread. I hope the following will clarify a couple things. The years function is not really intended for precise...

meer dan 2 jaar ago | 0

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seasonal mean for each year based on the sample code
As in your other post, I can't follow youre code, but my strong recommendation is to read in your data using readtimetable, and ...

meer dan 2 jaar ago | 0

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Duplicating categorical array to floating point value for perfcurve function
The short answer is that you can call double on a categorical array to get the category numbers as a numeric array. But that may...

meer dan 2 jaar ago | 0

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years in fourth dimension is not printing properly
I can't follow youre code, but my strong recommendation is to read in your data using readtimetable, and then use groupsummary o...

meer dan 2 jaar ago | 0

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How to rename identical variables under one common name?
This just SCREAMS for using categorical. Screams. This might seem like more work, but untimately you will be happier. TextData ...

meer dan 2 jaar ago | 0

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How do you access table data to be used with basic operators?
There are suggestions in this thread pointing in different directions. To answer the question as stated in the post's title, thi...

meer dan 2 jaar ago | 0

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How to reference a cell from a table within a table
Aron, it sounds like you have tables in a cell array in a table. Dirk is assuming you have "nested tables", which is different b...

meer dan 2 jaar ago | 1

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constructing a table from a particular data set
You almost certainly do not want to do all the calculation "by hand" as Sharad's answer shows. Import into a timetable, then us...

meer dan 2 jaar ago | 0

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Simulink Desktop Real-Time & MATLAB App Designer UI (App update lag)
This [SOUNDER_DATA;newSounder] can take some time, it's an expensive operation. If possible, better to save all those one-row ...

meer dan 2 jaar ago | 0

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Answered
Extracting corresponding timestamp in two tables of different sizes.
The times are changed in the new table, so all the suggestions to match times are AFAICT not gonna work. I think you're on the r...

meer dan 2 jaar ago | 0

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Answered
I need data points from Labchart file according to stimulus time points in a other channel , how can i get it?
Avinash, I'm not really sure what you are trying to do, but this should get you started: >> t = readtable("90.txt",HeaderLines=...

meer dan 2 jaar ago | 1

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Question on datestr to datetime conversion
It's hard to tell what this code is doing, but while replacing this datestr(now) with this char(datetime) is a literal old t...

meer dan 2 jaar ago | 0

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How to remove rows in table?
You don't need loops to do this. Hard to verify that this does what you are asking for with no mat file. pathsToDelete = {'E:\A...

meer dan 2 jaar ago | 0

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Select values based on datetime
The very first thing you should do is put your data and timestamps in a timetable. Once you do that, use retime to create a dai...

meer dan 2 jaar ago | 0

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Answered
How can I calculate the overlapping time on a timetable?
This might get you started: >> load('T3.mat') >> T3.Next1 = [(T3.LOS(1:end-1) > T3.AOS(2:end)); false]; >> T3.Next2 = [(T3.LO...

meer dan 2 jaar ago | 0

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Grouping times by end to start time
This is a lot like hierarchical clustering, if you happen to have the Statistics Toolbox. https://www.mathworks.com/help/stats/...

meer dan 2 jaar ago | 0

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How to fill zeros and NaNs with the average of the previous nonzero consecutive values (part 2)
Just for fun: a varfun soln. Would look similar using grouptransform. Step one is to define groups of elements by finding runs ...

meer dan 2 jaar ago | 0

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Weighted Average for a certain depth
At one point you say "weighted soil moisture average to a given depth" and at another you say "soil moisture depth average". You...

meer dan 2 jaar ago | 0

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How can I list individual year from the datetime table?
I'm gonna go Dave one better: >> load DateList.mat >> t = table(Per); >> t.Year = year(t.Per); >> t2 = varfun(@(x){x},t,Inpu...

meer dan 2 jaar ago | 1

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How to plot a derivative against variable?
For extra credit, create a timetable from displacement, add velocity and accel, then use stackedplot to plot all three together....

meer dan 2 jaar ago | 0