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Michel Nieuwoudt
The University of Auckland
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Research scientist in Raman and IR spectroscopy, very much a beginner in the use of Matlab
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Question
Subdividing a matrix and pairing specific columns in the subdivisions
Hi experts, I have a matrix of 1001 columns and 6000 rows. The first column is frequency, and the rest are signal intensities o...
environ 3 ans il y a | 2 réponses | 0
2
réponsesQuestion
Label each data point and color code the data points
Hello, I have an XY scatter plot of 49 points, and I want to label each point according to a text. There are three classes of...
environ 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Help with file format conversion please!
I have a set of numbers of XY data (.csv format), with each XY value in the format: 2.024890e 002,2.069117e 003. How do I conver...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
combining different csv files from a folder into one matrix
Hello, I have 800 files with 1554rows and 2columns so (1554x2) , that I'd like to read from a folder and then combine them into...
plus de 5 ans il y a | 2 réponses | 0
2
réponsesCombining y columns of several x,y matrices into one matrix
Thank you! have done :)
presque 6 ans il y a | 0
Question
Combining y columns of several x,y matrices into one matrix
OK, I've edited my request with more detail: I have ten (1554x2) .csv files of x,y data (I've attached eight here, for some rea...
presque 6 ans il y a | 2 réponses | 0
2
réponsesQuestion
How do I save a matrix in ascii format so that the variable names are included as the first row header?
Hi, I have assigned variable names to each column (14 columns) of my matrix. But when I save the matrix in ascii format, the ...
plus de 7 ans il y a | 1 réponse | 0
1
réponseQuestion
I would like to import a matrix that has filenames in the first row with numbers and a letter. How can I do this wihout it importing as NaN? It's not a date format.
Hello, I am trying to import a data matrix that has the first row as the Sample ID, which has numbers and a letter: e.g., 20W...
presque 8 ans il y a | 1 réponse | 0
1
réponseHow do I add NaNs to each of a set of vectors of different lengths to make them all the same length please?
Thank you for your answer, however, I'm not sure I understand the last line. (I am still learning!)
environ 8 ans il y a | 0
Question
How do I add NaNs to each of a set of vectors of different lengths to make them all the same length please?
I have 13 columns that I'd like to put into a matrix, but they are different lengths. I can add NaN to them to make them the sam...
environ 8 ans il y a | 3 réponses | 0
3
réponsesQuestion
I would like to convert a date in the format of, for e.g., 02 September 2004, to a datenumber. But this format is not a standard Matlab format. Does anyone know how I could do this please?
I would like to convert a date in the format of, for e.g., 02 September 2004, to a datenumber. But this format is not a standard...
environ 8 ans il y a | 1 réponse | 0