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Dynamically update values of a chartjs chart

I created an basic bar chart using chartjs and it works fine. Now I want to update the values on a time based interval. My problem is that after I created the chart, I do not know how to update its values correctly... ...
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Why are these numbers not equal?

The following code is obviously wrong. What's the problem? 6 Answers 6 ...
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How to find list intersection?

actual output: [1,3,5,6] expected output: [1,3,5] 11 Answers 11 ...
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What is a regular expression which will match a valid domain name without a subdomain?

I need to validate a domain name: 20 Answers 20 ...
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How to pretty-print a numpy.array without scientific notation and with given precision?

I'm curious, whether there is any way to print formatted numpy.arrays , e.g., in a way similar to this: 14 Answers ...
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How to sort an array in descending order in Ruby

I have an array of hashes: 8 Answers 8 ...
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Difference between numpy.array shape (R, 1) and (R,)

In numpy , some of the operations return in shape (R, 1) but some return (R,) . This will make matrix multiplication more tedious since explicit reshape is required. For example, given a matrix M , if we want to do numpy.dot(M[:,0], numpy.ones((1, R))) where R is the number of rows (of co...
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cartesian product in pandas

I have two pandas dataframes: 11 Answers 11 ...
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Find unique rows in numpy.array

I need to find unique rows in a numpy.array . 20 Answers 20 ...
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Convert pandas dataframe to NumPy array

I am interested in knowing how to convert a pandas dataframe into a NumPy array. 15 Answers ...