Hello I hope you’re fine I store the received data in a file data base as follows: [“0.4″,”0.4″,”0.5″,”0.43”,1522731408] [“0.3″,”0.3″,”0.3″,”0.39”,1522731468] [“0.3″,”0.3″,”0.3″,”0.33”,1522731529] [“0.2″,”0.2″,”0.2″,”0.25”,1522731590] [“0.1″,”0.1″,”0.1″,”0.2”,1522731650] [“0.1″,”0.1″,”0.0″,”0.15”,1522731711] [“0.1″,”0.0″,”0.0″,”0.12”,1522731771] [“0.0″,”0.0″,”0.0″,”0.09”,1522731832] [“0.2″,”0.0″,”0.0″,”0.08”,1522731892] [“0.1″,”0.0″,”0.0″,”0.07”,1522731953] [“0.0″,”0.0″,”0.0″,”0.06”,1522732013] [“0.1″,”0.0″,”0.1″,”0.06”,1522732074] [“0.1″,”0.0″,”0.0″,”0.06”,1522732135] [“0.0″,”0.1″,”0.2″,”0.05”,1522732195] [“0.0″,”0.0″,”0.0″,”0.05”,1522732256] [“0.1″,”0.0″,”0.0″,”0.06”,1522732316] [“0.1″,”0.0″,”0.0″,”0.05”,1522732377] [“0.1″,”0.0″,”0.1″,”0.04”,1522732437] [“0.0″,”0.0″,”0.1″,”0.03”,1522732498] [“0.1″,”0.0″,”0.1″,”0.03”,1522732559] [“0.1″,”0.0″,”0.0″,”0.04”,1522732619]
The first four are the data, and the last number is the timestamps
Now I do not need past information And I want to erase the previous day’s information How should I do this? Can you give us an exact example? thank you