问题
is there any good way how i can import a Excel file with signal values (40,000 values, ~100 minutes measurement time) and simulate a signal over time with it?
I want to reconstruct the simulation with timestamp and Signal values.
I've two columns:
- Timestamp for every value (it isn't equidistant)
- Signal-Value
The timestamp should be nearly synchron with the simulationtime.
Maybe someone has a good "to start" idea?
Thank you!
Update #1 (based on the comments):
@Wouter de Kort: I got data from measurement over time. I got for every timestamp a value. The data looks something like this (without backslash):
Time (s) // Value
154,51 // 49,33
154,71 // 49,46
154,92 // 49,72
155,11 // 49,64
I only want to look from the beginning to the end of the data over a time (the time, the measurement in real took). Like a Sinus Generator, but in this case i've a specific signal and the values has to be at a specific time.
How can i export it to CSV? And what are the benefits using CSV with C# instead of Excel?
Update #2:
My case is, to get every (e.g.) 100ms a new value through a variable which i can use for my visualization program i already have.
回答1:
Take a look at this: Importing Excel into a DataTable Quickly There's an importing example directly from an Excel spreadsheet without the need to convert to CSV.
You can also use OfficeOpenXml. It provides a way to access cell data like so:
using OfficeOpenXml;
...
var pck = new ExcelPackage(fileName);
var ws = pck.Workbook.Worksheets.ElementAt(0); // first worksheet
ws.Select();
var value = ws.Cells[row, col].Value; // corresponds to some Excel cell value
来源：https://stackoverflow.com/questions/48377140/c-sharp-using-data-from-excel-to-simulate-a-signal-over-time