analysis

scraping data from multiple pages in R using rvest

落花浮王杯 提交于 2021-02-08 12:09:07
问题 I am new to r and am trying to get data from Goodreads.com for a data analysis project. I need help with script to get the book reviews along with review date. but this data are on multiple pages and many of the reviews are truncated. Please I need help get this data as I have to collect reviews on about 50 books. Thanks 回答1: Well, you didn't post a specific URL, so I'll show you a couple generic samples of how to iterate through several URLs, and grab different kinds of data sets. Example1:

Analysis services with PowerBI

流过昼夜 提交于 2021-01-29 08:06:23
问题 I got authentication problems while connecting PowerBI to Analysis services on premise . I read that we need to do User Principal Name (UPN) mapping but i do not have a domain , Analysis services is on an azure virtual machine . So my question is , if i do configure HTTP Access to Analysis services would that be a solution that works with PowerBI ? Is it possible for PowerBI to connect to the Analysis services HTTP end point ? Thanks 回答1: As of now it's not possible to connect to SSAS hosted

Error in deploying SSAS cube to SQL Server Analysis

我只是一个虾纸丫 提交于 2021-01-28 19:22:20
问题 I am having issue deploying SSAS package to SQL Server Analysis. It is complaining of duplicates keys whereas the column is referencing is not a primary key column. I queried the dimension table to see that the primary keys have same values in the affected columns which is normal and possible. The attribute usage and type property are already set to regular in SSDT. Please find the error I am receiving below. I will appreciate an idea to fix this issue. Thank you. Errors and Warnings from

How to treat number with decimals or with commas as one word in countVectorizer

試著忘記壹切 提交于 2021-01-28 18:24:03
问题 I am cleaning text and then passing it to the CountVectorizer function to give me a count of how many times each word appears in the text. The problem is that it is treating 10,000x as two words (10 and 000x). Similarly for 5.00 it is treating 5 and 00 as two different words. I have tried the following: from sklearn.feature_extraction.text import CountVectorizer import pandas as pd corpus=["userna lightning strike megawaysnew release there's many ways win lightning strike megaways. start epic

Analyze Firebase data

两盒软妹~` 提交于 2020-07-21 06:29:05
问题 I have a mobile app that uses Firebase to store it's data. I am storing all user data, different business objects and relationships. I am looking for a way to analyze my data. I want to execute queries and aggregations on the data, and to generate reports. The Firebase site mentioned using BigQuery from Google, but there seems to be no easy way to import data from Firebase to it. What is the best way to achieve this? I know I can create daily backups, but after I have the raw JSON data how

DebugDiag Analysis hangs while “Dumping Thread Data”

試著忘記壹切 提交于 2020-06-29 04:06:50
问题 I'm trying to run DebugDiag Analysis (v2.3) on my Windows 10 laptop using crash-dump files generated from a w3wp.exe process on a Windows Server 2016 box... but the application never passes "Dumping Thread Data" (the progress animation continues, so it's not a GUI hang.) (I am not allowed to installed DebugDiag on the server, as it is production box and owned by a client. They allowed me to change the registry settings to generate the crash-dump files, which I then copied to my local machine.

DebugDiag Analysis hangs while “Dumping Thread Data”

此生再无相见时 提交于 2020-06-29 04:06:10
问题 I'm trying to run DebugDiag Analysis (v2.3) on my Windows 10 laptop using crash-dump files generated from a w3wp.exe process on a Windows Server 2016 box... but the application never passes "Dumping Thread Data" (the progress animation continues, so it's not a GUI hang.) (I am not allowed to installed DebugDiag on the server, as it is production box and owned by a client. They allowed me to change the registry settings to generate the crash-dump files, which I then copied to my local machine.

What is complexity of this code? (Big O) Is that linear?

99封情书 提交于 2020-06-17 09:41:33
问题 for(int i=0; i<array.length -1; i++){ if(array[i] > array[i+1]){ int temp = array[i]; array[i] = array[i+1]; array[i+1]=temp; i=-1; } } I think the code sorts the input array and that its worst case complexity is O(n). What is the correct big-O complexity of this code? 回答1: It's O(n^3), and it's an inefficient version of bubble sort. The code scans through the array looking for the first adjacent pair of out-of-order elements, swaps them, and then restarts from the beginning of the array. In