Hello!

I need some help with importing datafile in RayMan. I tried to transform excel file to .txt file as I have to do to compute meteorological data to PET. Problem is that program doesn't compute datas, but it always answers in a way like this:
"Read error from data file!" (Data format? Number of columns?)
I always choose the same number of columns in "Werterdatei" window as in my .txt file. RayMan computes only the first line of datas in a file.

or

"0.3" ist kein gültiger Fließkommawert!.
I usually use "," for decimal point.

I have no idea in what form does a file need to be, that RayMan will be able to compute all datas. Can anyone advise me, how exactly I have to do that?

Thank you for your help!

Hi, am having the same problems you experienced while importing my datafile into Rayman too.

I saved the data from my excel spreadsheet into a .txt (tab delimited) and ensured that I have the exact same number of columns in my textfile as checked when in the RayMan datafile input window. [I've only seven columns - Date, Time, Air Temperature, RH, Wind velocity, Cloud cover, Global radiation and I checked all these boxes for the datafile input window.]

Unfortunately I keep getting the same error message as you did: "Read error from datafile! Data format? Number of columns?"

I'm not sure what that could mean because I've already converted it to a .txt file and am certain that the number of columns I have checked are right.

If you have resolved the problem, could you please let me know what you did to solve it?

Ok after playing around with RayMan for two days, I've finally resolved my problem with importing my datafile! The problem was with my time format in my original file.

So my datalogger records time in terms of hh:mm:ss AM/PM, whereas I think Rayman only accepts hh:mm in 24 hour terms, without the seconds and AM/PM. Once I switched my time format, everything worked fine. Hope this helps for people who had the same problem! Just make sure that all your units in the datafile are in the same format demanded in RayMan's input windows.

I had the same problem
I found that one of the values in my Datafile was in Minus (-), so when I changed the value from Minus to Plus (+) it worked fine with no problems
** Also check the Time format as mentioned in the previous post.

I have check all the recommendation stated below but yet not solving my problem in calculating PET with all the meteorological data selected in Datafile columns.
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