Data points/peak Openlab

Hello,

You would need to use a custom calculation in CDS to calculate the data points. As an example, the CC below uses a enter value for data rate in the CCF file to calculate an estimate for the number of points from the peak start and peak end times. You would need to provide the data rate as in the example or using a custom field. This is because the number from the method cannot be accessed for calculations. I compared the calculations to the actual points in excel from the CSV export of the chromatogram. 

Marty Adams

(Peak_EndTime - Peak_BeginTime) * 60 * DataRate

Hi Martin, 

I know this is an old thread, but can you provide additional information on your custom calculation "DataRate"? 

Thank you very much!

Hello,

Do you have a specific question? I went into a fair bit of detail in the post. The original question was to get the number of data points for each peak. The calculation is just peak time vs the data rate to give the points per peak. The data rate cannot be accessed as a value used for calculations, so we are entering the rate as a CC in the calculation file. 

Marty

Hello,

Do you have a specific question? I went into a fair bit of detail in the post. The original question was to get the number of data points for each peak. The calculation is just peak time vs the data rate to give the points per peak. The data rate cannot be accessed as a value used for calculations, so we are entering the rate as a CC in the calculation file. 

Marty