Suppose you have created your m-file and you are now want to protect your code and the send the rest to your employer so that he can use it without knowing the code inside it.P-file functionality is as same as of m-file but no one can check what’s inside p-file. MATLAB has a function in which you convert your m-file into p-file and no one can open that p file code.
Like me explain it with an example, suppose you are some sort of developer and you have created some code for a company and now you want to protect your code and just send the company some sort of software.
P File is like an encrypted file which performs the same functionality as your original m file but no one can get the code out of it. Now the question arises that why we need to do that? & the answer is if you want to protect your code and don’t want anyone to access it then you need to your Convert m File into p File.
#HOW TO CONVERT FILE FORMAT IN MATLAB HOW TO#
In today’s tutorial, I am going to show you How to Convert m File into p File in MATLAB. If you have any further questions that you need clarification on, please write us to or submit a ticket through the support portal.Hello friends, I hope you all are doing great. Here it is for listening at the audio in MAT format simply (Matlab uses default sample rate 8192 hertz, but true one is 44100, supply it. The image below shows how to do that with a single sample. As the time stamps vector is stored as seconds by default, we first need to convert it into days. If you want to get each timestamp in the absolute format, you can convert it into the number of days, which is done by diving with a factor of (24*60^2) and then add each point to the absolute time offset.įrom here, you can use any of the familiar MATLAB functions to perform date/time operations, such as datevec(), which will return a vector of the individual components.įinally, if you would like to store all of the time stamps in an absolute time format, you can add the absolute start variable to every element of the time stamp array. As Slovenia lies in the UTC +1 time zone, this means that the local time will be one hour greater when compared to the regular UTC time format, which is stored inside the file. There is, however, an hour difference between the two, which can be explained by the local time display option, which I've selected inside DEWESoft's settings. The date also matches up with the one displayed in DEWESoft. This now becomes a number that MATLAB can interpret using the datestr() function, as can be seen in the image below. We can do that by summing up the return of the datenum('3') function and the info_data.start_store_time variable. The way that MATLAB interprets its absolute time is a bit different from the way it's done in Delphi, so we first need to convert this variable to a number that means something to MATLAB. That value represents the absolute time in days since the 30th of December, 1899. On the picture above, you can see that the start_store_time variable contains a very large number. Apart from that, you can also read a struct called info_data, where you'll find a variable called start_store_time. In this guide, we'll take a look at how we can do that in MATLAB, since that's a tool that's used very often among engineers performing data analysis.Īs you've probably noticed, the time stamps that are returned by the default MATLAB script are relative, meaning that the first one starts at 0.00, while every next one increases by a factor of 1 divided by the sample rate (for synchronous channels). Modified on: Tue, 20 Feb, 2018 at 8:40 AMĪ question that comes up very often by DWDataReader users is how can I read absolute time stamps. Solution home Knowledge base FAQ How to read the absolute time in MATLAB