Read Matlab Files In Idleness
File name, specified as a character vector or a string. If you do not include an extension, xlsread searches for a file with the specified name and a supported Excel extension. Xlsread can read data saved in files that are currently open in Excel for Windows. To import or export multiple files, create a control loop to process one file at a time. Jun 25, 2015. If you are using the MATLAB/Octave code to parse the connector log file, for example, it will require minor modification to parse the received MPDU message. Is there a place where I can find some sort of documentation on MPDU fields and their relation w.r.t the read in bytes. Closing due to idleness.
Controlling Access to the MATLAB Command Line
You control access to the MATLAB command line by specifyingwhether a read or write operation is synchronous or asynchronous.
A synchronous operation blocks access to the command line untilthe read or write function completes execution. An asynchronous operationdoes not block access to the command line, and you can issue additionalcommands while the read or write function executes in the background.
Read Matlab Files In Idleness Youtube
The terms synchronous and asynchronous areoften used to describe how the serial port operates at the hardwarelevel. The RS-232 standard supports an asynchronous communicationprotocol. Using this protocol, each device uses its own internal clock.The data transmission is synchronized using the start bit of the bytes,while one or more stop bits indicate the end of the byte. For moreinformation on start bits and stop bits, see Serial Data Format. The RS-232 standard also supports a synchronousmode where all transmitted bits are synchronized to a common clocksignal.
At the hardware level, most serial ports operate asynchronously.However, using the default behavior for many of the read and writefunctions, you can mimic the operation of a synchronous serial port.
Note
When used in this guide, the terms synchronous and asynchronous referto whether read or write operations block access to the MATLAB command-line.In other words, these terms describe how the software behaves, andnot how the hardware behaves.
The two main advantages of writing or reading data asynchronouslyare:
You can issue another command while the write or readfunction is executing.
You can use all supported callback properties (see Events and Callbacks).
For example, because serial ports have separateread and write pins, you can simultaneously read and write data. Thisis illustrated in the following diagram.
Create an Excel file named myExample.xlsx.
Sheet1 of myExample.xlsx contains:
Read numeric data from the first worksheet.
Read a specific range of data from the Excel file in the previous example.
Read the second column from the Excel file in the first example.
For better performance, include the row numbers in the range, such as 'B1:B3'.
Request the numeric data, text data, and combined data from the Excel file in the first example.
In the Editor, create a function to process data from a worksheet. In this case, set values outside the range [0.2,0.8] to 0.2 or 0.8.
In the Command Window, add random data to myExample.xlsx.
The worksheet named MyData contains values ranging from 0 to 1.
Read the data from the worksheet, and reset any values outside the range [0.2,0.8]. Specify the sheet name, but use ' as placeholders for the xlRange and 'basic' inputs.
Execute a function on a worksheet and display the custom index output.
In the Editor, modify the function setMinMax from the previous example to return the indices of the changed elements (custom output).
Read the data from the worksheet MyData, and request the custom index output, idx.