Robert

Actif depuis 2016

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pcolor - colorbar question
Hello, I am creating maps using pcolor with a colorbar using colors from white to yellow to light red for small to medium to la...

environ 6 ans il y a | 1 réponse | 0

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Extracting info from multiple matrices
Hello, Wondering if anyone could suggest a simple way to extract info from matrix B based on Matrix A. I have two "correpondin...

environ 6 ans il y a | 1 réponse | 0

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How could I add colors to regions in a global map?
Hi, Wondering if is an easy and quick way to add colors to regions in a global map (matrix)? Like this...(attached figure)...

environ 6 ans il y a | 1 réponse | 0

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Question

How to modify font size in a miller projection map?
Hi, Wondering how to modify the font size of the text for the longitudes in a miller projection map? Thanks!

environ 6 ans il y a | 1 réponse | 0

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Question

Extracting Attribute Info from .nc file
Hi, ncdisp('File.nc'); Source: C\Folders........\File.nc Format: classic Global Attributes: YearInfo ...

plus de 6 ans il y a | 1 réponse | 0

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How can I create a matrix from 3 vectors?
Hello, I would like to ask if anyone knows how to create a matrix from 3 vectors: values (z), latitude (y), and depth (x), as...

plus de 6 ans il y a | 1 réponse | 0

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How a large timetable (10 million rows by 15 columns) could be modified to a smaller table?
Hello, Here is an example of my 10 million x 15 columns timetable... Time Par_Name1 Par_Name2 ... Par_Name12 UniqueID Va...

plus de 6 ans il y a | 1 réponse | 0

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Join two tables with different sizes
Hello, I am trying to join two tables with different sizes A = 50000 x 12 B = 9 x 3 Both matrices have a variable ...

plus de 6 ans il y a | 1 réponse | 0

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How to reorder a matlab table based on a portion of variables name
Hi, Wondering if anyone knows how to reorder a Matlab table based on a portion of variables name (numerical ID within the var...

plus de 6 ans il y a | 2 réponses | 1

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Question

How to read dates/times with time zone
Hi, Wondering how to read the following dates/times: 2003-01-16T06:28:00Z 2003-02-16T03:13:00Z 2003-03-16T04:11:07Z ...

plus de 6 ans il y a | 1 réponse | 0

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How to replace numbers (-999) for NaN in a dataset?
Hi, I have a large dataset with variables containing -999. I want to change those numbers to NaN but it is not working... ...

plus de 6 ans il y a | 2 réponses | 0

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How to use grpstats to create statistics using nominal variable from a dataset?
Hello, Wondering how to use grpstats to create statistics using nominal variable from a dataset? This is my dataset (examp...

plus de 6 ans il y a | 1 réponse | 0

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How to copy files to different folders based on part of filename (strings and numbers)
Hi, I haven't been able to find a solution to my problem when trying to copy files with similar part of filename, including w...

presque 7 ans il y a | 1 réponse | 0

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Question

Adding High Resolution basemap to Geographic Bubble Chart
Hi, From: https://www.mathworks.com/help/matlab/creating_plots/_mw_47bfdfc1-09dc-40c2-82c6-280c83609dd8.html 'To use anot...

presque 7 ans il y a | 1 réponse | 1

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Question

Shade with different colors portions of figure based on data
Hello, Wondering if anyone could help me with this... I do have a time-series (Data attached) with positive and negative v...

presque 7 ans il y a | 1 réponse | 0

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Question

Find specific files based on sections of file name
Hello, I want to generate an analysis using .csv files. How could I make a search to load only files that have specifics sect...

presque 7 ans il y a | 1 réponse | 1

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Question

How to delete/retain variables (columns) from a table based on sections of the variables name
Hello, Wondering if anyone knows how to delete/retain variables (columns) from a table based on portions of the variables nam...

presque 7 ans il y a | 1 réponse | 0

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Question

Extract clusters info from dendrogram as a matrix
Hello, Wondering if somebody could guide me here... I do have data from instruments at different locations (Latitude and L...

presque 7 ans il y a | 1 réponse | 0

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Question

How to sort a table by portions of the variable names in columns
Hi, I would like to ask this question in two parts... 1) Wondering how to sort this table based on the end portion of the...

environ 7 ans il y a | 1 réponse | 0

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Question

How to add names to table variables from a large cell with names?
Hello, I have a 600x1000 array (double), where Columns have data like this... 145.65 18.81 29.06 28.48 ... 145.66 18.73...

environ 7 ans il y a | 1 réponse | 0

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Question

How to obtain statistics between rows from columns with similar variable name when using timetable?
Hello, Wondering how to obtain the mean (and number), for each row, from columns with a similar variable name (see below, K00...

environ 7 ans il y a | 1 réponse | 0

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réponse

Question

Using @range in timetable when having NaN's
Hi, I am trying to calculate daily mean and daily range from a timetable: '25-Feb-2008 00:00:00' 29.1580000000000 '25-F...

environ 7 ans il y a | 1 réponse | 0

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Question

Loop files, create a timetable and add file names to variable names
Hi, Wondering if anyone is familiar with how adding file names to the variable names in a loop when creating a timetable? ...

environ 7 ans il y a | 2 réponses | 1

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Question

Would be possible to calculate half hour average by using retime?
Hello, The current time steps allowed in retime <https://www.mathworks.com/help/matlab/ref/retime.html> are: 'yearly' One...

plus de 7 ans il y a | 2 réponses | 1

2

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Question

How to extract a diagonal band of data from a square matrix, to reduce array size?
Hi, I am looking to extract data for the region Latitudes (North=29 and South= 22.5) and Longitudes (West= -179 and East= -16...

plus de 7 ans il y a | 1 réponse | 0

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Question

How to insert values to specific locations in a matrix
Hi, Looking for help on how to insert values into a 3D matrix (array) based on their latitude and longitude positions. This i...

plus de 7 ans il y a | 1 réponse | 0

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Question

Read file, extract region and save
Hi, I am trying to read multiple .nc files (I know how to do this, see below), then extract a small region from each file (n...

plus de 7 ans il y a | 1 réponse | 0

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How to use function table (or timetable) inside a loop to generate a final table that contains a large number of variables (columns) with names
Wondering if anyone could suggest how to use the function table (or timetable) inside a loop to generate a final table that cont...

plus de 7 ans il y a | 2 réponses | 0

2

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Question

How to create a new matrix adding vectors of different size based on time
Hi, Wondering if I could get some ideas, or guide me to a similar example, on how I can organize 300 times series of data, ea...

plus de 7 ans il y a | 3 réponses | 0

3

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Question

How to read .nc files that are located in multiple folders (sub-subfolders with similar name).
In my case, 'Main' folder has 16 subfolders (2002, 2003, ..., 2017), while each subfolder have 365 sub-subfolders (001, 002, ......

presque 8 ans il y a | 1 réponse | 0

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