.net - matlab 下载谷歌趋势 csv

Question

我一直在使用发布在 Matlab login and download failure when calling WebClient.DownloadFile 的原始代码尝试直接从 matlab 下载 csv 格式的谷歌趋势数据。

我还在 login with curl and get session 阅读了 Emanuele 的帖子Google 的身份验证策略已更改，现在我的代码如下所示:

NET.addAssembly('System.Net'); 

url = strcat(['https://www.google.com/accounts/ClientLogin?accountType=GOOGLE&Email='     USERNAME '&Passwd=' PASSWORD '&service=trendspro&source=test-test-v1']); 

durl = System.String(strcat('http://www.google.com/trends/viz?q=', keyWord, '&date=all&geo=all&graph=all_csv&sort=0&scale=1&sa=N'))

if exist('googleWebClient','var') 
    client = googleWebClient; 
else 
    client = System.Net.WebClient; 

    response = client.DownloadString(url); 
    sid = char(response.ToString); 
    sid = regexp(sid, '\n', 'split'); 

    client.Headers.Add('Cookies', char(sid(1))); 

    client.Headers.Add('Authorization', strcat(   'GoogleLogin '  ,  char(sid(3))   )   ); 


end 


client.DownloadString(durl)

无情地返回:

ans = 

<div id="report">
    <div class="timeBandTitle">An error has been detected</div>
    <div class="timeBandSubTitle">You have reached your quota limit. Please try again later.</div>
  </div>

如果有人能够从 matlab 访问 google trends csv 数据，那你就是我的英雄

Answer 1

假设您实际上没有达到配额限制，我怀疑您没有 turned on API access . (解释为配额限制为 0？!)

它可以在服务下找到。