Jul-16-2019, 03:17 AM
It is hard to say something without further details, e.g. Does your data frame include missed values, are all values presented in the same format (coordinates might be presented as strings, e.g. in format dd.ddddddd (decimal degrees) or
dddd mmm ssss (degrees, minutes and seconds)) or something else?
250k locations is not too much. You are likely needed to use some regular expressions, not sure.
You can do all this conversion in one pass, e.g. consider using
Could you provide subsample of your data?
dddd mmm ssss (degrees, minutes and seconds)) or something else?
250k locations is not too much. You are likely needed to use some regular expressions, not sure.
You can do all this conversion in one pass, e.g. consider using
.apply method of a df-instance. You will need to write your own function to be applied. Hope that helps.Could you provide subsample of your data?