Katerina F

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Last seen: 6 jours il y a | Actif depuis 2014

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find is not working in a loop, it skips numbers
Hello, I am using a loop with a "find" to indentify the rows in the third column that have the same number (e.g. 0.75 etc), the...

8 mois il y a | 1 réponse | 0

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Selection of array elements with condition
I have a 1×294 cell array. For simplicity I show here a shorter verion of this, 1x8 A={[-0.3368 -0.0329]} { [-0.5666 -1....

plus d'un an il y a | 1 réponse | 0

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Plot the same data once normalized values on the left y-axis and once with units on the right ; the same for bottom and top x-axis
I want to plot the same data once with normalized values on the left y-axis and once with units (GW) on the right ; the same fo...

plus d'un an il y a | 1 réponse | 0

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identifying and isolating consecutive numbers
I found the following questions in Matlab which is similar to mine I have a vector, for example, A= [1 2 3 4 14 15 23 24 25 ] ...

plus d'un an il y a | 1 réponse | 0

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Extract data from a csv file in Matlab
Hello, I am trying to open csv file in Matlab (2020) and extract the data, then put the first column of the data in three colum...

environ 5 ans il y a | 1 réponse | 0

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How to plot a surface in 3D space from 4 points
Hello, I would like to plot a flat, vertical, surface in Matlab that is passing through the points A=(3.5,0,0), B=(0,8.59,0), C...

environ 8 ans il y a | 2 réponses | 1

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Lines on 3D surface plot
Hello, I have the following example (see below) of a data that I am using to plot a 3D surface. What I would like to do is to s...

plus de 8 ans il y a | 2 réponses | 0

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Reduce lines shown in a surface plots
I followed a previous reply trying to reduce the number of lines on a 3D plot but it does not seem to work in my case. What is h...

plus de 8 ans il y a | 2 réponses | 0

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Question

load txt files with columns of numbers and text
Hello, I would like to load files in Matlab with data that contain columns with letters too as shown in the attached file. I u...

presque 10 ans il y a | 3 réponses | 0

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How to change in sequences of files each output of two for loops one inside the other
Hello, I have too "for" loops one inside the other and I would like to save the output in sequences of files. I can do it succe...

environ 10 ans il y a | 1 réponse | 0

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How to extract column data of text from a csv file in vectors
Hello, I have csv files, here the data are similar to the extract of a file attached as an example. I want to extract the data o...

presque 11 ans il y a | 1 réponse | 0

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Question

How to replace NaN with column mean if less than b NaN in a column?
Hello, Say I have the martix: MA=[1 2 3 NaN; 6 NaN NaN 9; NaN NaN NaN 9;NaN 45 NaN 9;NaN NaN NaN 19;1 12 3 34] I would l...

environ 11 ans il y a | 1 réponse | 0

1

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Question

How to extract column data from a csv file in vectors
Hello, I have csv files, here the data are similar to the extract of a file attached as an example. I want to extract the data ...

environ 11 ans il y a | 2 réponses | 0

2

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Question

How to save in a sequence of files each output of a "for" loop
A have a number of txt files with data, and names like ABR1998, ABR1999 etc. I am running a script that includes a "for" loop t...

environ 11 ans il y a | 2 réponses | 0

2

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Question

Error in downloading sequence of txt files
Hello, I have a sequence of txt files, similar to the one attached, in a folder called 'runfiles'. I am using the code below t...

environ 11 ans il y a | 2 réponses | 0

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Question

convert day year hour data series with missing data to a serial number
I have a year of data from "01/01/2003 00:00" to "2003/12/31 23:59" with some days/hous missing from the data series. I think...

environ 11 ans il y a | 2 réponses | 0

2

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Question

How can I add missing hours (rows) in a time series matrix?
An example from an excel file with month-day-hour-solar irradiance is attached as a text file with data for two days. I have to...

environ 11 ans il y a | 1 réponse | 0

1

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