How to convert minutes, seconds, milliseconds to seconds?

hey,

How can I return an array with

min:sec:milli-seconds

into

seconds?

For example

Answer 1

[Cris LaPierre]

You don't sepcify your file type. I'm going to assume a csv though this only matters for getting the data into MATLAB. My goal is to import it as a string. Modify as necessary for your file.

opts = detectImportOptions("timeData.csv","ReadVariableNames",false);
opts = setvartype(opts,1,"string");
data = readtable("timeData.csv",opts);

Once the data is read in as a table, convert it to a duration so that the time has units. As part of this, you can specify the input format.

tm = duration({data.Var1{:}},"InputFormat","mm:ss.SSSS")

You can view the seconds in two ways.

1. Use the seconds function

seconds(tm)

2. Specify the output format when converting to a duration.

tm = duration({data.Var1{:}},"InputFormat","mm:ss.SSSS",'Format',"s")