Top "Nan" questions

What is the difference between (NaN != NaN) and (NaN !== NaN)?

First of all I want to mention that I know how isNaN() and Number.isNaN() work. I am reading The …

javascript nan

Fill in missing pandas data with previous non-missing value, grouped by key

I am dealing with pandas DataFrames like this: id x 0 1 10 1 1 20 2 2 100 3 2 200 4 1 NaN 5 2 NaN 6 1 300 7 1 NaN I would like to replace each NAN …

python pandas nan missing-data data-cleaning

Pearson correlation and nan values

I have two CSV_files with hundreds of columns and I want to calculate Pearson correlation coefficient and p value …

python arrays numpy nan pearson-correlation

How to filter out rows with NaN values in Hive?

I am running a sum function of one hive table in Hue, and get a return value of NaN. Here …

sql hadoop hive nan hue

inequality comparison of numpy array with nan to a scalar

I am trying to set members of an array that are below a threshold to nan. This is part of …

python numpy indexing nan inequality

Handle Nan when using Pandas ExcelWriter in python

How would I change the following code to handle NaN values as just empty cells within my dataframe as I …

python pandas nan xlsxwriter spreadsheet-excel-writer

Is null considered zero and undefined not a number on arithmetic expressions?

Is null evaluated to 0 and undefined to NaN on arithmetic expressions? According to some testing it seems so: > null + …

javascript null undefined nan zero

Uncaught exception: CALayer position contains NaN when doing animation

I am getting this error in my application when I run on an iPad: Uncaught exception: CALayer position contains NaN …

ios mkmapview nan cgrect

How do I create or test for NaN or infinity in Perl?

How do I create or test for NaN or infinite values in Perl?

perl nan infinity

One function to detect NaN, NA, Inf, -Inf, etc.?

Is there a single function in R that determines if a value is NA, NaN, Inf, -Inf, or otherwise not …

r nan na r-faq