Additional Time Stamp Row in Excel Report

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We're trying the excel reporting structure. If we try to generate a line graph of time series data with a single XID data point it operates as expected. However, when we add a second XID data point to the Excel report mango pulls a duplicate time stamp and inserts a blank row. This causes the Excel graph to get all confused.

For Example here is the generated report from Mango where time stamps are in column A and data is in column B. This is what we expect.

But then we we add a second data point Mango does the below, where it puts the two data points in the first time stamp row, but then adds a second blank row with the same time stamp. Has anyone experienced this? or have a resolution?

Hi chio,

The two data values being on the first row and the second being empty is a bug. I just reproduced it on my system, and I will make sure we set about fixing that. Thanks for bringing it to our attention! https://github.com/infiniteautomation/ma-core-public/issues/1100

As to them generally being in every other row, i would expect that if there was a millisecond value in the timestamp and they are not actually at the same time. I am not aware of a way to lose precision on the timestamp during reporting easily. You could use a rollup, though, which would put the data into same timestamps.

@phildunlap Phil thanks for the explanation and the detailed reply. can you help me understand how to use roll up to solve this?

You can specify a roll up of different types when you edit the Excel Report:

@JoelHaggar thanks, is there some documentation on what rollup is how it functions? Im new to mango and not sure what impact rollup has on the data.

@chio The type of rollup is the dropdown, followed by the interval that rollup should be collected. For your data, where your polling rate appears to be 5 seconds, you could do a First type rollup (get the first value in each period) on an interval of 5 seconds. Here's the help page for rollups: https://help.infiniteautomation.com/mango-rollups-and-statistics/

Hi Phil,

I am experiencing the same issue. I have 4 data points in a spreadsheet that are askew after running the report.

However in the next tab (Others) on the same spreadsheet, I am encountering no issues.

I attempted the roll up as advised by Joel. The readings are every 5min, but I'm still getting blank cells and gaps.
I see that this bug was resolved on GitHub however it is not clear to me what needs to be done to fix the bug?

Hey Phil,

I was able to resolve it with the roll up function. Instead of First, I used Accumulator.