How do you extract data from a MATLAB figure?

You can get the data from a plot by accessing the XData and YData properties from each Line object in the axes.

1. Make the figure containing the plot the current figure.
2. Call the gca command to get the current axes within that figure.
3. Get the coordinates from the XData and YData properties of the Line object.

How extract xy data value from MATLAB figure?

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1. h = findobj(gca,’Type’,’line’)
2. x=get(h,’Xdata’) ;
3. y=get(h,’Ydata’) ;

How do I extract data from a figure?

Extracting data from graph image

1. Step 1: Upload the image to PlotDigitizer. Go to PlotDigitizer’s free online app, and upload the image by clicking or drag-dropping.
2. Step 2: Select the graph type.
3. Step 3: Calibrating the axes.
4. Step 4: Extracting data points from the plot.
5. Step 5: Exporting the extracted data.

How do I export data from MATLAB to excel?

You can use the “MLGetFigure” function to import current MATLAB figure into Microsoft Excel worksheet. You can also do this by launching Excel from MATLAB by using the ActiveX Automation client feature of MATLAB. You can print a figure to the clipboard and then insert the clipboard contents into Excel.

How do you use Ginput in Matlab?

[ x , y ] = ginput( n ) allows you to identify the coordinates of n points within Cartesian, polar, or geographic axes. To choose a point, move your cursor to the desired location and press either a mouse button or a key on the keyboard. Press the Return key to stop before all n points are selected.

How do I extract data from a plot?

Basic Usage:

1. With a graph active, launch the App.
2. In the dialog, click to select the plot(s) you want to extract or export.
3. Click OK button to output the source data to a new worksheet.

How do you use Ginput in MATLAB?

How do you export data in MATLAB?

You can export a cell array from MATLAB® workspace into a text file in one of these ways:

1. Use the writecell function to export the cell array to a text file.
2. Use fprintf to export the cell array by specifying the format of the output data.

How do I create a CSV file in MATLAB?

csvwrite( filename , M ) writes matrix M to file filename as comma-separated values. csvwrite( filename , M , row , col ) writes matrix M to file filename starting at the specified row and column offset. The row and column arguments are zero based, so that row=0 and col=0 specify the first value in the file.

What does Ginput mean in Matlab?

[ x , y ] = ginput( n ) allows you to identify the coordinates of n points within Cartesian, polar, or geographic axes. To choose a point, move your cursor to the desired location and press either a mouse button or a key on the keyboard.

How do I use Gtext?

gtext( str ) inserts the text, str , at the location you select with the mouse. When you hover over the figure window, the pointer becomes a crosshair. gtext is waiting for you to select a location. Move the pointer to the location you want and either click the figure or press any key, except Enter.

Is it possible to extract data from Fig files in MATLAB?

So essentially the same code can be used to extract data from .fig files created a decade ago, as well as the latest Matlab release. Note that the fact that FIG files are basically just MAT files is an undocumented feature of Matlab, and so it might change one day.

How do I extract data from a Matlab figure?

This example shows how to extract data from a MATLAB figure. If the figure is stored in a file, such as ‘example.fig’, then open the figure file using ‘openfig’. Assign the Figure object to the variable ‘fig’. If the figure is already open, then use ‘gcf’ to access the Figure object and assign it to the variable ‘fig’.

How can I read MATLAB data in Python?

If anyone else happens upon this: Matlab figures are just “.mat” files. The scipy.io library in Pylab can read Matfiles into numpy structures using the ‘loadmat’ command. One can then browse the figure data in Python and locate the data.

How do I get the data from a figure?

The figure handles and data are stored in a structure that you can easily understand and process. Here’s a really simple way: Click on the object that you want to get the data from. There will be no indication that you have clicked on it. Sometimes it can be hard to click on the line, or other object, itself.