afrya

Attivo dal 2013

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Domanda

how can I convert comma with decimal points for a lot of textfiles?
Hello, I would like to import 10 textfiles which have comma as decimal delimiter. All text file look like: Time Fn Ft 0,1 1,...

oltre 6 anni fa | 4 risposte | 0

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Domanda

Problem in importing textfiles
Hello, I would like to import a textfile with matlab. The textfile consist of decimal numbers. It looks like: X Y Z 0...

quasi 11 anni fa | 2 risposte | 0

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Domanda

How can I do same calculation with a lof of excel files in matlab?
Hello, I ' m working with an excel file in matlab.After importing the excel file in matlab, I do some calculations. I would l...

quasi 11 anni fa | 1 risposta | 0

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Domanda

How to calculate average with taking into account only certain values
Hello, I'm working with a large matrix that contains a lot of zero values.When I transform this matrix from a list table to a...

oltre 11 anni fa | 1 risposta | 0

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Domanda

How to use data to plot a 2D image
Hello, I have a dataset with 3 vectors X, Y, and Z and I want to plot a 2D image from this dataset. I don't know how to defi...

oltre 11 anni fa | 1 risposta | 0

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Domanda

How to put in color a certain part of the background in a plot with matlab?
Hello, I would like to draw in grey color a certain part of the background in a plot. I know how to change the background col...

quasi 12 anni fa | 2 risposte | 0

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Risposto
Why the image is upside down when I display it in a graph?
thanks for your answer.The image is now in the right order But I still have a problem, when I add set(gca,'YDir','reverse') in ...

quasi 12 anni fa | 2

Domanda

How to export a matrix in a text file?
Hello, I want to save a matrix in a text file with the data organised in columns. Exemple: A= 1 2 3 4 5 6 ...

quasi 12 anni fa | 2 risposte | 0

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Domanda

Why the image is upside down when I display it in a graph?
Hello, I have a problem when I display an image in a plot.The image is upside down in the figure window. Do you know how t...

quasi 12 anni fa | 3 risposte | 1

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Domanda

How to plot an image(.bmp) in a graph?
Hello, I have a 2-D plot and on the top right corner of the plot, I want to display an image (picture). Is there any wa...

quasi 12 anni fa | 2 risposte | 0

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Domanda

How to plot a fitted curve?
Hello, I would like to fit a curve with the following function: y=a-b*c^x I used this expression with matlab: ft=fittype('...

quasi 12 anni fa | 1 risposta | 0

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Domanda

How to fit this eqation:y=a-b+*c^x ?
Hi, I am wondering how can I fit the following equation: y=a-b+*c^x since it is not included in the library and how can I ex...

quasi 12 anni fa | 1 risposta | 0

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Domanda

How can I plot the confidence bounds for an exponential fit?
Hi, I'm dong a fit of my data with an exponential fit.When I rum my program , I get the coefficient a ,b, and the coefficien...

quasi 12 anni fa | 1 risposta | 0

1

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Domanda

How to calculate the average without taking zeros values?
Hi, I have a large data list which has this form: Y= 1 2 4 5 6 7 0 0 0 8 9 0 0 0 0... AVerage1=5.25 2 3 ...

quasi 12 anni fa | 4 risposte | 0

4

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Domanda

How to find all zero values in a matrix?
Hello, I am wondering first how can I do to detect the number of zero values and their position in a large matrix.Secondly, h...

quasi 12 anni fa | 1 risposta | 2

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Domanda

How to find the goodness of fit without using the curve fiting toolbox
Dear all , I would like to know if this is possible to calculate the goodness of fit measures R-square, adjusted R square, RM...

quasi 12 anni fa | 0 risposte | 0

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Domanda

How to solve a problem in a user friendly program?
Dear all, I have a problem with the folllowing user friendly program. %AVkam=[1;2;3;4;5;6;7;8] %m=number of averages %n=tot...

quasi 12 anni fa | 1 risposta | 0

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Domanda

How to calculate average of certain value in a matrix?
Hello, My problem is about how to calculate the average of certain values in a large matrix. I know how to calculate the 1st av...

quasi 12 anni fa | 2 risposte | 0

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Domanda

How to call origin software from matlab?
Dear all, I want to make a plot with Origin of data from matlab .I want to call origin from matlab Do you have any idea t...

quasi 12 anni fa | 0 risposte | 0

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Domanda

How to calculate average in a large matrix?
Dear all, I'm working with a large amount of data in a project.For each row of my matrix , I calculate the average. Here i...

quasi 12 anni fa | 3 risposte | 0

3

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Domanda

How to take only few rows in a large matrix
Dear All, I'm working with a large amount of data in a matrix.My problem is the following one. I have a large matrix which...

quasi 12 anni fa | 1 risposta | 0

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Domanda

How to calculate the sum of each row in a matrix?
Dear All, I want to calculate the sum of each row in a large matrix.The matrix looks like: y1 y2 y3 y4 y5 x2 2 4 4 ...

quasi 12 anni fa | 6 risposte | 2

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Domanda

How to rearrange values in a matrix
Hello, I have a large matrix with 3 columns(x,y,and z) and I want to rearrange the values inside this matrix. Example: *Initi...

quasi 12 anni fa | 2 risposte | 1

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