By default, fopen opens a file for read-only access. For these purposes, MATLAB provides the low-level fprintf function.Īs in low-level I/O file activities, before exporting, you need to open or create a file with the fopen function and get the file identifier. Here are some options in order of increasing difficultly: For small matrices, you can use the 'diary' command to create a diary file, and then list the variables on this file. However, you may need to create other text files, including combinations of numeric and character data, nonrectangular output files, or files with non-ASCII encoding schemes. To save your matlab variables/arrays as ascii text, there are a number of things you can do. Exporting Data to Text Data Files with Low-Level I/O You can open the diary file in a text editor. Optionally, you can give the name of the log file, say − The diary function creates an exact copy of your session in a disk file, excluding graphics. MATLAB executes the above statements and displays the following result.
#Matlab save code#
Create a script file and type the following code − The following example demonstrates the concept. Where, my_data.out is the delimited ASCII data file created, num_array is a numeric array and dlm_char is the delimiter character. Syntax for using the dlmwrite function is −ĭlmwrite('my_data.out', num_array, 'dlm_char') Where, my_data.out is the delimited ASCII data file created, num_array is a numeric array and −ascii is the specifier. Using the save function and specifying the -ascii qualifier There are two ways to export a numeric array as a delimited ASCII data file − MEX-file to access your C/C++ or Fortran routine that writes to a particular text file format.Īpart from this, you can also export data to spreadsheets.
Specialized ASCII file using low-level functions such as fprintf. Rectangular, delimited ASCII data file from an array.ĭiary (or log) file of keystrokes and the resulting text output. You can create the following type of files − For this, MATLAB provides several data export options. MATLAB allows you to use your data in another application that reads ASCII files. The file created is export (or output) in MATLAB means to write into files. From the table for print device types, you can see the device type for this format is -dtiffn. In another example, save the current model to the file trans.tiff using the TIFF format with no compression. If you use doc print or help print, you can see from the table for print device types that the device type for this format is -dpsc2. Save the current figure to the file star.eps using the Level 2 Color PostScript format. MATLAB automatically appends the ai extension, for an Illustrator format file, because no extension was specified.Įxample 3 - Specify File Format and Extension This is the same as using the Adobe Illustrator format from the print devices table, which is -dill use doc print or help print to see the table for print device types. Use the ai extension from the above table to specify the format. Save the current figure, using Adobe Illustrator format, to the file logo. This allows you to open the file pred_prey.fig at a later time and continue editing it with the Plot Editor.Įxample 2 - Specify File Format but No Extension Save the current figure that you annotated using the Plot Editor to a file named pred_prey using the MATLAB fig format. The Export dialog box you access from the figure window's File menu uses saveas with the format argument. The Save As dialog box you access from the figure window's File menu uses saveas, limiting the file extensions to m and fig. You can use open to open files saved using saveas with an m or fig extension. When using the print device type to specify format for saveas, do not use the prepended -d. Use an extension from the table above or from the list of device types supported by print. The print device types include the formats listed in the table of extensions above as well as additional file formats. If no extension is specified, the standard extension corresponding to the specified format is automatically appended to the filename.Īllowable values for format are the extensions in the table above and the device types supported by print. The filename can have an extension but the extension is not used to define the file format. Saves the figure or model with the handle h to the file called filename using the specified format. MATLAB M-file (invalid for MATLAB models)
MATLAB figure (invalid for MATLAB models) Allowable values for ext are listed in this table. The format of the file is determined by the extension, ext. Saves the figure or model with the handle h to the file filename.ext. Save figure or model using specified format Saveas (MATLAB Functions) MATLAB Function Reference
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