Answered

Filter table data into matrix

From your description, it sounds like you want data for MJJ for all years? Assuming your data is in a timetable and your dates a...

Filter table data into matrix

From your description, it sounds like you want data for MJJ for all years? Assuming your data is in a timetable and your dates a...

meer dan 2 jaar ago | 0

Answered

Problem Importing Text File into TimeTable

Because the second variable is uses ":" as a separator, it is being treated as a duration by default. I would recommend using im...

Problem Importing Text File into TimeTable

Because the second variable is uses ":" as a separator, it is being treated as a duration by default. I would recommend using im...

meer dan 2 jaar ago | 0

| accepted

Answered

empty space between values when making bar chat with datetime

That's a tough one. Obviously, if you were doing a standard x-y plot, you'd want the datetime axis to realistically represent ti...

empty space between values when making bar chat with datetime

That's a tough one. Obviously, if you were doing a standard x-y plot, you'd want the datetime axis to realistically represent ti...

meer dan 2 jaar ago | 0

Answered

Preprocessing: excel table headers into categoricals

stack is the function that does the operation that converts a "wide" table with separate variables to a "tall" table with an ind...

Preprocessing: excel table headers into categoricals

stack is the function that does the operation that converts a "wide" table with separate variables to a "tall" table with an ind...

meer dan 2 jaar ago | 0

Answered

I want to import only specific Types of variables using readtable.

You can use vartype to subscript into the table and select only variables that are a certain datatype (or meta-type like 'numeri...

I want to import only specific Types of variables using readtable.

You can use vartype to subscript into the table and select only variables that are a certain datatype (or meta-type like 'numeri...

meer dan 2 jaar ago | 0

| accepted

Answered

Select specific rows in Matlab Table.

I would suggest counting the unique times, then you can split up the table based on the counts: d = datetime(2018,1,1,[1 2 4 4 ...

Select specific rows in Matlab Table.

I would suggest counting the unique times, then you can split up the table based on the counts: d = datetime(2018,1,1,[1 2 4 4 ...

meer dan 2 jaar ago | 0

| accepted

Answered

Add datetime vector which contains NaT to double

The NaT isn't the problem. You cannot concatenate datetime and double in a homogenous matrix: >> x = [1 2 datetime('now')] E...

Add datetime vector which contains NaT to double

The NaT isn't the problem. You cannot concatenate datetime and double in a homogenous matrix: >> x = [1 2 datetime('now')] E...

bijna 3 jaar ago | 0

Answered

How to calculate average of data over a given time period?

It would be helpful to see what your data looks like (are different time components) split into different table variables?) But ...

How to calculate average of data over a given time period?

It would be helpful to see what your data looks like (are different time components) split into different table variables?) But ...

bijna 3 jaar ago | 0

Answered

Change data type of a table column into datetime?

Take a look at the convertvars function for changing the data type of a table variable. Also, is there a reason you're bring in...

Change data type of a table column into datetime?

Take a look at the convertvars function for changing the data type of a table variable. Also, is there a reason you're bring in...

bijna 3 jaar ago | 1

Answered

How to change interval unit of x axis

If X is a duration array (X = minutes(0:15:262800)), you plot datetimes or durations directly, and changing the Format property ...

How to change interval unit of x axis

If X is a duration array (X = minutes(0:15:262800)), you plot datetimes or durations directly, and changing the Format property ...

ongeveer 3 jaar ago | 0

Answered

alternative visualisations of 3 vectors

You could construct datetimes from those separate vectors of year/month/day, and then plot the datetime variables. That brings y...

alternative visualisations of 3 vectors

You could construct datetimes from those separate vectors of year/month/day, and then plot the datetime variables. That brings y...

ongeveer 3 jaar ago | 0

Answered

How to store Matlab datetime data type in hdf5

I don't think HDF5 has its own definition of a date/time type and you can't store MATLAB datetimes directly in HDF5. There are o...

How to store Matlab datetime data type in hdf5

I don't think HDF5 has its own definition of a date/time type and you can't store MATLAB datetimes directly in HDF5. There are o...

ongeveer 3 jaar ago | 0

| accepted

Answered

Convert categorical back to integer

Peter's answer to this similar post provides a few other suggestions to consider.

Convert categorical back to integer

Peter's answer to this similar post provides a few other suggestions to consider.

ongeveer 3 jaar ago | 0

Answered

Overwriting a table with a different sized table

There are two ways that timetables (or table) can contain tables. In one approach, the table is the same height as the timetable...

Overwriting a table with a different sized table

There are two ways that timetables (or table) can contain tables. In one approach, the table is the same height as the timetable...

ongeveer 3 jaar ago | 0

Answered

table row key implementation

Hi Andrew, I assume you mean t.Properties.RowNames throughout rather than "RowKeys." Yes, that's a large difference in performa...

table row key implementation

Hi Andrew, I assume you mean t.Properties.RowNames throughout rather than "RowKeys." Yes, that's a large difference in performa...

meer dan 3 jaar ago | 0

| accepted

Answered

Plotting of yearly data.

There are a few ways to tackle this problem. Here's one approach: fi = '~/Downloads/Mod21_All_Inclusive_Data_Nov2019.txt'; opt...

Plotting of yearly data.

There are a few ways to tackle this problem. Here's one approach: fi = '~/Downloads/Mod21_All_Inclusive_Data_Nov2019.txt'; opt...

meer dan 3 jaar ago | 0

Answered

problem plotting excel date, cant convert to HH:MM:SS only

I'm not entirely clear about what your data looks like. Attaching a file would help. That said, I suspect readtable would do the...

problem plotting excel date, cant convert to HH:MM:SS only

I'm not entirely clear about what your data looks like. Attaching a file would help. That said, I suspect readtable would do the...

meer dan 3 jaar ago | 0

Answered

How can I convert datetime into double?

What do you want the doubles to represent? Datenum returns a double represents days since 0 CE. The posixtime function would...

How can I convert datetime into double?

What do you want the doubles to represent? Datenum returns a double represents days since 0 CE. The posixtime function would...

meer dan 3 jaar ago | 0

Answered

How to filter rows in a timetable based on a range between 08:00 and 16:00 for everyday and put in a new timetable

You can do this with some logical indexing on the row times. Create a timetable with a few days worth of hourly data: tt = tim...

How to filter rows in a timetable based on a range between 08:00 and 16:00 for everyday and put in a new timetable

You can do this with some logical indexing on the row times. Create a timetable with a few days worth of hourly data: tt = tim...

meer dan 3 jaar ago | 3

Answered

How to use timetable with hierarchical data

For synchronizing leaf-to-leaf, you probably will end up wanting to write a for-loop, looping over leaf grouping variables, sync...

How to use timetable with hierarchical data

For synchronizing leaf-to-leaf, you probably will end up wanting to write a for-loop, looping over leaf grouping variables, sync...

meer dan 3 jaar ago | 0

| accepted

Answered

Issue with loading datetime from table

There's no reason to go through cell to pass the datenums into datetime: Data = readtable(‘FileMaker.csv’); Dates = datetime...

Issue with loading datetime from table

There's no reason to go through cell to pass the datenums into datetime: Data = readtable(‘FileMaker.csv’); Dates = datetime...

meer dan 3 jaar ago | 1

Answered

convert "number of days since" to datetime, given 365-day and 360-day calendars (not Gregorian)

Adding support for a broader range of calendars is something I've been thinking about. For a fixed-length calendar (360-day or 3...

convert "number of days since" to datetime, given 365-day and 360-day calendars (not Gregorian)

Adding support for a broader range of calendars is something I've been thinking about. For a fixed-length calendar (360-day or 3...

meer dan 3 jaar ago | 0

| accepted

Answered

Associate value to the correct date

Take a look at the timetable synchronize method. If you import your "1st", "2nd", "3rd" as separate timetables tt1,tt2,tt3, then...

Associate value to the correct date

Take a look at the timetable synchronize method. If you import your "1st", "2nd", "3rd" as separate timetables tt1,tt2,tt3, then...

ongeveer 4 jaar ago | 0

| accepted

Answered

Increment dates using for loop

Are there any other calculations being done in the loop body of your actual code? If not, this can be done without looping: sam...

Increment dates using for loop

Are there any other calculations being done in the loop body of your actual code? If not, this can be done without looping: sam...

ongeveer 4 jaar ago | 0

| accepted

Answered

Calculate mean of calendarDuration? (i.e. mean of age)

Hi Max, You probably want to calculate the ages of the participants as durations, and mean() is defined for duration. calendarD...

Calculate mean of calendarDuration? (i.e. mean of age)

Hi Max, You probably want to calculate the ages of the participants as durations, and mean() is defined for duration. calendarD...

ongeveer 4 jaar ago | 0

Answered

Reorder table variables / columns

In R2018a, check out the new <https://www.mathworks.com/help/matlab/ref/movevars.html movevars> function for rearranging variabl...

Reorder table variables / columns

In R2018a, check out the new <https://www.mathworks.com/help/matlab/ref/movevars.html movevars> function for rearranging variabl...

bijna 5 jaar ago | 7

Answered

How to go about grouping, listing and (if user specifies) writing to a file a group of time series objects which are of different lengths (# of rows) and different time bases?

Take a look at the synchronize function for timetables. By default, synchronize(tt1,tt2) will construct a new time table with a ...

How to go about grouping, listing and (if user specifies) writing to a file a group of time series objects which are of different lengths (# of rows) and different time bases?

Take a look at the synchronize function for timetables. By default, synchronize(tt1,tt2) will construct a new time table with a ...

ongeveer 5 jaar ago | 1

| accepted

Answered

Have a string with an analog time value, how to convert it to total time elapsed?

The duration datatype is the correct type to represent this data, and you can plot durations. In R2018a, there is a new capab...

Have a string with an analog time value, how to convert it to total time elapsed?

The duration datatype is the correct type to represent this data, and you can plot durations. In R2018a, there is a new capab...

ongeveer 5 jaar ago | 0