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Charting Irregular Datetime Intervals with Missing Values Set to Zero (PHP)
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IT & Programming > Web Programming

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Jan 25, 2014
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  • Posted: Sun, Jan 19, 2014
  • Time Left: Closed
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  • Start: Immediately
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We are looking for an experienced PHP developer to assist us with charting a series of datetimes with missing dates/times being calculated as zero. We currently are using HighchartsPHP-master (from GitHub) to do graphing.

The problem:

Our datetimes and values are a MySQL result set. That data is already graphed.

What we need is to insert a value of zero for the times that are not present in the result set. Example: A data point exists for Dec 18th, 2013 13:00 UTC. The next data point isn't until January 14th, 5:00 UTC. Instead of a line connecting the two data points sequentially, we need to have the missing times inserted with a value of zero to show the gap. The time variance may be weeks, or a matter of minutes. Either way, we need to ensure that the time interval in between is graphed with a zero value.

We are open to using JS or PHP to solve this. Please reference the following API docs to ensure that you will be able to complete this task in a reasonable time frame prior t...

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Desired Skills
Javascript, PHP, charting
Job ID: 51923657
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