Deleting missing values from a dataset












2












$begingroup$


I wanted to create a dataset of all UFO sightings in April of 2018. The
AssociationThread doesn't want to work, because some of the entries are missing value, what is the best way to fix it?



dataA1 = Import[

"http://www.nuforc.org/webreports/ndxe201804.html", {"HTML", 

"Data"}];

dataA2 = Flatten[Rest@dataA1, 1];

dataA3 = 

 Map[AssociationThread[First[dataA1], #] &, dataA2]

Dataset[dataA3]





import dataset associations web-access







share|improve this question











$endgroup$








  • 1




    $begingroup$
    To be clear, this isn't about data that is Missing, but rather Import[XXXX,{"HTML", "Data"}] giving "tables" that have rows with inconsistent lengths.
    $endgroup$
    – Carl Lange
    6 hours ago
















2












$begingroup$


I wanted to create a dataset of all UFO sightings in April of 2018. The
AssociationThread doesn't want to work, because some of the entries are missing value, what is the best way to fix it?



dataA1 = Import[

"http://www.nuforc.org/webreports/ndxe201804.html", {"HTML", 

"Data"}];

dataA2 = Flatten[Rest@dataA1, 1];

dataA3 = 

 Map[AssociationThread[First[dataA1], #] &, dataA2]

Dataset[dataA3]





import dataset associations web-access







share|improve this question











$endgroup$








  • 1




    $begingroup$
    To be clear, this isn't about data that is Missing, but rather Import[XXXX,{"HTML", "Data"}] giving "tables" that have rows with inconsistent lengths.
    $endgroup$
    – Carl Lange
    6 hours ago














2












2








2





$begingroup$


I wanted to create a dataset of all UFO sightings in April of 2018. The
AssociationThread doesn't want to work, because some of the entries are missing value, what is the best way to fix it?



dataA1 = Import[

"http://www.nuforc.org/webreports/ndxe201804.html", {"HTML", 

"Data"}];

dataA2 = Flatten[Rest@dataA1, 1];

dataA3 = 

 Map[AssociationThread[First[dataA1], #] &, dataA2]

Dataset[dataA3]





import dataset associations web-access







share|improve this question











$endgroup$




I wanted to create a dataset of all UFO sightings in April of 2018. The
AssociationThread doesn't want to work, because some of the entries are missing value, what is the best way to fix it?



dataA1 = Import[

"http://www.nuforc.org/webreports/ndxe201804.html", {"HTML", 

"Data"}];

dataA2 = Flatten[Rest@dataA1, 1];

dataA3 = 

 Map[AssociationThread[First[dataA1], #] &, dataA2]

Dataset[dataA3]





import dataset associations web-access




import dataset associations web-access






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 4 hours ago









Carl Lange

4,61311038




4,61311038










asked 6 hours ago









Artem AnisimovArtem Anisimov

403




403








  • 1




    $begingroup$
    To be clear, this isn't about data that is Missing, but rather Import[XXXX,{"HTML", "Data"}] giving "tables" that have rows with inconsistent lengths.
    $endgroup$
    – Carl Lange
    6 hours ago














  • 1




    $begingroup$
    To be clear, this isn't about data that is Missing, but rather Import[XXXX,{"HTML", "Data"}] giving "tables" that have rows with inconsistent lengths.
    $endgroup$
    – Carl Lange
    6 hours ago








1




1




$begingroup$
To be clear, this isn't about data that is Missing, but rather Import[XXXX,{"HTML", "Data"}] giving "tables" that have rows with inconsistent lengths.
$endgroup$
– Carl Lange
6 hours ago




$begingroup$
To be clear, this isn't about data that is Missing, but rather Import[XXXX,{"HTML", "Data"}] giving "tables" that have rows with inconsistent lengths.
$endgroup$
– Carl Lange
6 hours ago










1 Answer
1






active

oldest

votes


















6












$begingroup$

You can solve this by importing "FullData" rather than "Data".



dataA1 = Import[

  "http://www.nuforc.org/webreports/ndxe201804.html", {"HTML", 

   "FullData"}]

dataA2 = Flatten[Most@Rest@dataA1[[8]], 1]

dataA3 = Map[AssociationThread[dataA1[[8, 1, 1]], #] &, dataA2];

Dataset[dataA3]


What's awkward about this is that there can be many empty tables that you must sift through (as you can see, I have to get the 8th element). However, it works quite well in this case.






share|improve this answer









$endgroup$













  • $begingroup$
    Thank you, but I'm not completely sure how "Data" and "FullData" differ. Why do they exist separately?
    $endgroup$
    – Artem Anisimov
    5 hours ago






  • 2




    $begingroup$
    @ArtemAnisimov From the documentation for the "HTML" import/export format: "FullData" imports: "full tabular content, including empty HTML table and list elements". "Data" doesn't import empty elements.
    $endgroup$
    – Carl Lange
    5 hours ago











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1 Answer
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1 Answer
1






active

oldest

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active

oldest

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active

oldest

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6












$begingroup$

You can solve this by importing "FullData" rather than "Data".



dataA1 = Import[

  "http://www.nuforc.org/webreports/ndxe201804.html", {"HTML", 

   "FullData"}]

dataA2 = Flatten[Most@Rest@dataA1[[8]], 1]

dataA3 = Map[AssociationThread[dataA1[[8, 1, 1]], #] &, dataA2];

Dataset[dataA3]


What's awkward about this is that there can be many empty tables that you must sift through (as you can see, I have to get the 8th element). However, it works quite well in this case.






share|improve this answer









$endgroup$













  • $begingroup$
    Thank you, but I'm not completely sure how "Data" and "FullData" differ. Why do they exist separately?
    $endgroup$
    – Artem Anisimov
    5 hours ago






  • 2




    $begingroup$
    @ArtemAnisimov From the documentation for the "HTML" import/export format: "FullData" imports: "full tabular content, including empty HTML table and list elements". "Data" doesn't import empty elements.
    $endgroup$
    – Carl Lange
    5 hours ago
















6












$begingroup$

You can solve this by importing "FullData" rather than "Data".



dataA1 = Import[

  "http://www.nuforc.org/webreports/ndxe201804.html", {"HTML", 

   "FullData"}]

dataA2 = Flatten[Most@Rest@dataA1[[8]], 1]

dataA3 = Map[AssociationThread[dataA1[[8, 1, 1]], #] &, dataA2];

Dataset[dataA3]


What's awkward about this is that there can be many empty tables that you must sift through (as you can see, I have to get the 8th element). However, it works quite well in this case.






share|improve this answer









$endgroup$













  • $begingroup$
    Thank you, but I'm not completely sure how "Data" and "FullData" differ. Why do they exist separately?
    $endgroup$
    – Artem Anisimov
    5 hours ago






  • 2




    $begingroup$
    @ArtemAnisimov From the documentation for the "HTML" import/export format: "FullData" imports: "full tabular content, including empty HTML table and list elements". "Data" doesn't import empty elements.
    $endgroup$
    – Carl Lange
    5 hours ago














6












6








6





$begingroup$

You can solve this by importing "FullData" rather than "Data".



dataA1 = Import[

  "http://www.nuforc.org/webreports/ndxe201804.html", {"HTML", 

   "FullData"}]

dataA2 = Flatten[Most@Rest@dataA1[[8]], 1]

dataA3 = Map[AssociationThread[dataA1[[8, 1, 1]], #] &, dataA2];

Dataset[dataA3]


What's awkward about this is that there can be many empty tables that you must sift through (as you can see, I have to get the 8th element). However, it works quite well in this case.






share|improve this answer









$endgroup$



You can solve this by importing "FullData" rather than "Data".



dataA1 = Import[

  "http://www.nuforc.org/webreports/ndxe201804.html", {"HTML", 

   "FullData"}]

dataA2 = Flatten[Most@Rest@dataA1[[8]], 1]

dataA3 = Map[AssociationThread[dataA1[[8, 1, 1]], #] &, dataA2];

Dataset[dataA3]


What's awkward about this is that there can be many empty tables that you must sift through (as you can see, I have to get the 8th element). However, it works quite well in this case.







share|improve this answer












share|improve this answer



share|improve this answer










answered 6 hours ago









Carl LangeCarl Lange

4,61311038




4,61311038












  • $begingroup$
    Thank you, but I'm not completely sure how "Data" and "FullData" differ. Why do they exist separately?
    $endgroup$
    – Artem Anisimov
    5 hours ago






  • 2




    $begingroup$
    @ArtemAnisimov From the documentation for the "HTML" import/export format: "FullData" imports: "full tabular content, including empty HTML table and list elements". "Data" doesn't import empty elements.
    $endgroup$
    – Carl Lange
    5 hours ago


















  • $begingroup$
    Thank you, but I'm not completely sure how "Data" and "FullData" differ. Why do they exist separately?
    $endgroup$
    – Artem Anisimov
    5 hours ago






  • 2




    $begingroup$
    @ArtemAnisimov From the documentation for the "HTML" import/export format: "FullData" imports: "full tabular content, including empty HTML table and list elements". "Data" doesn't import empty elements.
    $endgroup$
    – Carl Lange
    5 hours ago
















$begingroup$
Thank you, but I'm not completely sure how "Data" and "FullData" differ. Why do they exist separately?
$endgroup$
– Artem Anisimov
5 hours ago




$begingroup$
Thank you, but I'm not completely sure how "Data" and "FullData" differ. Why do they exist separately?
$endgroup$
– Artem Anisimov
5 hours ago




2




2




$begingroup$
@ArtemAnisimov From the documentation for the "HTML" import/export format: "FullData" imports: "full tabular content, including empty HTML table and list elements". "Data" doesn't import empty elements.
$endgroup$
– Carl Lange
5 hours ago




$begingroup$
@ArtemAnisimov From the documentation for the "HTML" import/export format: "FullData" imports: "full tabular content, including empty HTML table and list elements". "Data" doesn't import empty elements.
$endgroup$
– Carl Lange
5 hours ago


















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