topic Re: Human Movement in Spatial Data Science Questions

Human Movement

BaffourAwuah — Thu, 04 Feb 2016 14:27:20 GMT

Can someone help me out? I'm trying to use Distributive Flow Lines Tool for Human Movement Analysis, but unfortunately I keep on getting this Error Message: Traceback(most recent call last); File “<string>”, line 136, in updateParameters ValueError: invalid literal for float(): 1009529,06119841. Can someone help me out? Does ArcGis provide any other tool for that purpose?

Re: Human Movement

DanPatterson_Retired — Thu, 04 Feb 2016 17:13:56 GMT

Since that is not a part of the esri suite of extensions...perhaps you could elaborate as to where this might be obtained... but based on 1009529,06119841 could you post the code if you have it...if it is in python

Re: Human Movement

DarrenWiens2 — Sun, 12 Dec 2021 02:44:05 GMT

The problem is to do with using a comma separator.

>>> myString = '10000,02837'
>>> float(myString) # it doesn't work
Runtime error
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ValueError: invalid literal for float(): 10000,02837
>>> myString = '10000.02837'
>>> float(myString)
10000.02837 # it works!

Try changing all the commas in that field to periods.

Re: Human Movement

DanPatterson_Retired — Sun, 12 Dec 2021 02:44:08 GMT

Darren may be on to something... try to see your regional settings and look for the 'decimal_point' separator option. In this example, you will see that a period is used in Canada

>>> import locale
>>> loc = locale.getlocale()
>>> loc
(None, None)
>>> locale.localeconv()
{'mon_thousands_sep': '', 'mon_grouping': [], 'decimal_point': '.', 'p_sep_by_space': 127, 'int_curr_symbol': '', 'n_cs_precedes': 127, 'positive_sign': '', 'p_sign_posn': 127, 'n_sep_by_space': 127, 'p_cs_precedes': 127, 'thousands_sep': '', 'negative_sign': '', 'frac_digits': 127, 'n_sign_posn': 127, 'currency_symbol': '', 'mon_decimal_point': '', 'int_frac_digits': 127, 'grouping': []}

>>>

Re: Human Movement

BaffourAwuah — Thu, 04 Feb 2016 22:33:06 GMT

Dan and Darren, thanks for your suggestions. I need to talk to our administrator before changing the local settings, right? I downloaded this program from: Distributive Flow Maps – More Raster, More Faster | Applications Prototype Lab.

Re: Human Movement

BaffourAwuah — Fri, 05 Feb 2016 10:13:03 GMT

That is absolutely Perfect. It worked like Magic. Thanks, once again, Dan and Darren!

Re: Human Movement

XanderBakker — Fri, 05 Feb 2016 12:20:20 GMT

Hi Baffour Awuah I unmarked your own post as the correct answer. Could you mark the thread that answered your question as the correct one?