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How to get the index from a datetime array corresponding to a time duration?
There are many ways to do this, I bet. Here's one: >> bin = floor((t2 - t1) ./ minutes(5)) + 1; >> i2 = [find(diff(bin)>...

9년 초과 전 | 0

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Find missing days in a date vector matlab
Meriem, if you're using a version of MATLAB since R2014b, you might find using tables and datetimes make this pretty simple: ...

9년 초과 전 | 0

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Fill area in plot with datetime
Frank, if you have access to the most recent release, R2016b, area does now work with datetimes: area(X,Y); h = gca; h.X...

9년 초과 전 | 1

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importing excel file time format
In R2014b or later, assuming you have a cell array of strings for the date and a vector of doubles for the time, >> datetim...

9년 초과 전 | 1

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express datetime from now, every 3h
In addition to Walter's suggestions, it may also be possible to take advantage of the roll-over behavior of the datetime constru...

9년 초과 전 | 0

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How can I convert these numbers into a date for a table?
There's also an explicit conversion to datetime from numbers like that: >> data = table((20160105:101:20161101).','Variable...

9년 초과 전 | 2

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How to specify a default fill value for adding to table
Greg, it's really the double type that's doing the in-filling with zeros, not the table. In general, things in a table behave th...

9년 초과 전 | 1

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How can I store a table inside a matrix?
As Nidhikutty says, if you want to split data into hourly (?) tables and keep all of those in one container, you'll need to stor...

9년 초과 전 | 1

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Sorting time series data by category
Let's say you're starting with the spreadsheet version of something like this: Time,Species,Size,Direction 10/25/2016 10...

9년 초과 전 | 0

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Converting a time field in a table to a usable format
Assuming you're starting out with something like this >> x = [1;2;3]; >> t = {'11:59:59:795'; '11:59:59:936'; '12:00:00:...

9년 초과 전 | 2

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How to detect whether 72 hours have passed after the occurrence of a certain event? - datenum gives error for longer time series.
Unless you're using a version of MATLAB older than R2014b, you'll be much better off using datetimes: >> times = datetime(2...

9년 초과 전 | 0

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table dispaly with char array
You're using a char array, almost certainly not what you want for a variety of reasons. Mostly, char matrices require awkward pa...

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How do I count the days of week in an hourly data set using datetime function?
Use dateshift, something like this: uniqueDays = unique(dateshift(dateNovLowVis,'start','day')) Then extract whatever co...

9년 초과 전 | 0

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Table performance very slow
Byron, it's hard to make specific suggestions without knowing exactly what you're doing, but here are some thoughts. Tables a...

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Replace a missing string in a table
George's loop seems fine to me although you could tweak it a bit as for name = varNames var = A.name; if isce...

9년 초과 전 | 1

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getting data types of table
It seems like you want a list of the table's variable names, a list of the variable's types, and your 2xn cell array of names/ty...

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Aligning Columns of a Table
Most likely that you need to use a fixed-width font in your command window. MATLAB's default is a fixed-width font, perhaps you ...

9년 초과 전 | 1

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mean value for every one minute and time blanks between
There are a variety of ways to do this, all more or less involving creating a grouping variable that says what minute each row o...

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How can I Stack data in a Table
There's a function specifically to do this: stack. In this case, you are stacking two groups of variables, so it's not quite as ...

9년 초과 전 | 0

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Multiple x axes with datetime time series
plotyy will work for plotting against datetimes (with some rough edges prior to R2016b), but it sounds like you want to overlay ...

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Converting time/dates to hours or number
This doesn't help the OP (sorry obstac) who's using R2008a, but the same calculation using datetime: >> t1 = datetime('13-S...

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How to average data for each sample (taken every ten minutes) from 4pm to 6am the next morning for each day for 2 months?
Lauren, I'm not clear what problem you're running into. If you have access to R2016b (available today, by coincidence), I rec...

9년 초과 전 | 1

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How to just select the date in a date-time excel upload.
ymd is a method of datetime to return the year, month, and day components as doubles. yyyymmdd is a method to return the (trunca...

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Convert dates from Excel to Matlab
If you're using R2014b or newer, suggest you look into using datetime, which has explicit conversions to and from excel serial d...

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Mersenne Twister
Mersenne Twister uniform pseudo-random number generator.

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Only one decimal place in a table object at the surface. How can I solve this problem?
Tables display with the same precision as the command window. Even in the command window, the only way to display exactly one de...

9년 초과 전 | 0

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how to convert data in UTC to a specific local time
UTC-5 is likely NOT your local time zone, since most locales shift for daylight saving. That's a detail many people forget. Y...

9년 초과 전 | 8

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Merging CSV files with similar data structure into table
Bjorn, you can create a table with three variables, full of NaNs, and then just assign the variables you have read in from each ...

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How can I find the average of Y values for a given X?
Two other possibilities that are very simple, using Azzi's example: 1) If you have R2013b or later, >> M = randi(10,100,...

9년 초과 전 | 1

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convert "Jul_26_2016__11-26-37_AM" to Date Vector
In R2014b or later, don't use datevec at all: >> s = {'Jul_26_2016__11-26-37_AM' 'Jul_26_2016__11-26-37_PM'} s = ...

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