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You could groupby "Customer" and transform first for "House Address" (first drops NaN values so only London will be selected for Sam). It returns a DataFrame having the same indexes as the original df filled with the transformed firsts.

Then pass this to fillna to fill NaN values in "House Address":

Well you can try to find the length of the LinkedList for each node, something like this -

I'm surprised the last one is returning any results, but regarding the first two searches, this is quite possible or even expected with Epic. Epic has special logic in the background that evaluates the parameter values you pass in against certain criteria, such as whether the name matches exactly, the name is similar, the birthdate matches exactly, etc. As a result, oftentimes not only exact matches but also similar matches will be returned by the Patient.Search API. The weighting of the criteria is customizable by Epic customer, so some may have stricter logic than others.

I'd recommend always validating the returned result against your input parameters to verify you are working with an exact match.

There were two deviations from the linked algorithm that were causing issues:

1. You were setting the escape radius to a low value (~2) in some cases
2. You were dividing by the log(R) which was not correct. You should divide by log(2)

Additionally some of the banding was because you were still using a discrete color map. You could use a continuous mapping of value -> hue, but if you want a particular cycle of colors, you can use lerpColor() to smoothly transition from one color and the next based on the difference between the continuous/smooth value and the current index.

Welcome back, Ash S! You are trying to compare (using SQL's between) Date-class with POSIXt-class objects. Unfortunately, they are significantly different numerically, so you need to convert one to the other.

(BTW, your sample data uses gwlfullflattened22 but your code uses ...ed2; I'll use the latter.)

The problem:

Use Array.filter with String.includes.

Array.filter filters the original array with some condition, where String.includes provides the condition, the email includes a string @gmail.com

Your desired result is a dictionary, so let's create one

Something like this should work:

As check constrants cannot use user. you can use TRIGGERS to enforce constraints like fiddle:

insert: