How to extract tweets given an ID

Question

Saugata Bose 2019-8-22

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/477137-how-to-extract-tweets-given-an-id

评论： Saugata Bose 2019-8-22

Hi

I am currently working on a project which demands analysing tweet data. For this, I have dopwnloaded a dataset which supposeldy containing the tweets as well as the category assigned against each tweet. However, after downloading the dataset I found it conatins some ID's and the assigned category. I have attached a snapshot of the dataset following:

Until now, I have tried this following sample code:

baseurl = 'https://api.twitter.com/1.1/statuses/show.json';
parameters.count = 1;
d = getdata(c,baseurl,parameters,'id','567824878201511000');

which shows error after execution. The error is following:

Error using char
Conversion to char from struct is not possible.
Error in twitter/getdata (line 73)
      requestParams.(char(varargin{i})) = varargin{i+1};
Error in tweetRetreat (line 60)
d = getdata(c,baseurl,parameters,'id','567824878201511000');

I am pretty doubtdul how to extract tweets against each number from the dataset after creating the twitter credentials. Does anyone of you advice me in this regard?

thanks,

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Guillaume 2019-8-22

which shows error after execution

And the full text of the error is...

Saugata Bose 2019-8-22

在 MATLAB Online 中打开

@Guillaume: I have added the error in the editeed question. The error is:

Error using char
Conversion to char from struct is not possible.
Error in twitter/getdata (line 73)
      requestParams.(char(varargin{i})) = varargin{i+1};
Error in tweetRetreat (line 60)
d = getdata(c,baseurl,parameters,'id','567824878201511000');

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Answer 1

Steven Lord 2019-8-22

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/477137-how-to-extract-tweets-given-an-id#answer_388656

Looking at the definition of the getdata method for twitter objects I suspect you want to either specify a number for the 'id' query parameter or query using the 'id_str' parameter. If you look at the struct array containing user data in the "Retrieve Twitter Data Using Name-Value Arguments" example on that page, it lists the account identifier in two ways.

FYI, this post on Loren Shure's blog may be of interest to you, as it deals with using Text Analytics Toolbox to analyze Twitter data retrieved using Datafeed Toolbox. Perhaps it could suggest tools and/or techniques for your analysis.

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Saugata Bose 2019-8-22

在 MATLAB Online 中打开

@Steven: Thanks for pointing me the necessary section. But after implementing the following code, it is showing 'StatusLine: 'HTTP/1.1 404 Not Found'. Does this mean that the tweet is no longer exist?? Besides, I must thank you to show me another Loren Shure's treasure. It will surely help me, I believe.

    baseurl = 'https://api.twitter.com/1.1/statuses/show.json';
    parameters.count = 1;
    d = getdata(c,baseurl,'count',1,'id_str','562736780487974914')