Deleting missing values from a datasetHow to execute JavaScipt on a webpage and then import the result on...

Silly Sally's Movie

Single word request: Harming the benefactor

What is the definition of "Natural Selection"?

Potentiometer like component

Is King K. Rool's down throw to up-special a true combo?

Is "history" a male-biased word ("his+story")?

What has been your most complicated TikZ drawing?

Excess Zinc in garden soil

Word for a person who has no opinion about whether god exists

Touchscreen-controlled dentist office snowman collector game

What to do when during a meeting client people start to fight (even physically) with each others?

Want to switch to tankless, but can I use my existing wiring?

Deleting missing values from a dataset

My story is written in English, but is set in my home country. What language should I use for the dialogue?

How could a female member of a species produce eggs unto death?

Plywood subfloor won't screw down in a trailer home

Is it true that real estate prices mainly go up?

Sword in the Stone story where the sword was held in place by electromagnets

A curious inequality concerning binomial coefficients

It's a yearly task, alright

Why would a jet engine that runs at temps excess of 2000°C burn when it crashes?

Playing ONE triplet (not three)

How to discourage/prevent PCs from using door choke-points?

Co-worker team leader wants to inject the crap software product of his friends into our development. What should I say to our common boss?



Deleting missing values from a dataset


How to execute JavaScipt on a webpage and then import the result on OSX?GeoLabels/Tooltips in Geographic Plots from DatasetImport a column of data, make a matrix from it and export it WITHOUT curly bracesShort way to query Dataset by the value of several columnsHow do I import a Dataset that contains lists?Going from Dataset back to underlying AssociationsElegant way to return first non-Missing column in DatasetHow to work with a Dataset?Best way to convert numerical columns of a dataset with missing values into a matrixWhat's the best way to import such dataset?













1












$begingroup$


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]









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
    2 hours ago
















1












$begingroup$


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]









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
    2 hours ago














1












1








1





$begingroup$


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]









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






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 52 mins ago









Carl Lange

4,59311038




4,59311038










asked 2 hours ago









Artem AnisimovArtem Anisimov

353




353








  • 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
    2 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
    2 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
2 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
2 hours ago










1 Answer
1






active

oldest

votes


















5












$begingroup$

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
    1 hour ago






  • 1




    $begingroup$
    @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
    1 hour ago











Your Answer





StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "387"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmathematica.stackexchange.com%2fquestions%2f193199%2fdeleting-missing-values-from-a-dataset%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









5












$begingroup$

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
    1 hour ago






  • 1




    $begingroup$
    @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
    1 hour ago
















5












$begingroup$

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
    1 hour ago






  • 1




    $begingroup$
    @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
    1 hour ago














5












5








5





$begingroup$

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 2 hours ago









Carl LangeCarl Lange

4,59311038




4,59311038












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






  • 1




    $begingroup$
    @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
    1 hour ago


















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






  • 1




    $begingroup$
    @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
    1 hour ago
















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




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




1




1




$begingroup$
@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
1 hour 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
1 hour ago


















draft saved

draft discarded




















































Thanks for contributing an answer to Mathematica Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


Use MathJax to format equations. MathJax reference.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmathematica.stackexchange.com%2fquestions%2f193199%2fdeleting-missing-values-from-a-dataset%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

117736 Шеррод Примітки | Див. також | Посилання | Навігаційне...

As a Security Precaution, the user account has been locked The Next CEO of Stack OverflowMS...

Маріан Котлеба Зміст Життєпис | Політичні погляди |...