DS WITH R | JUNe 6-JULY 5 | KAPIL

Discussion in 'Big Data and Analytics' started by Sriraksha G, Jun 5, 2020.

  1. Sriraksha G

    Sriraksha G Active Member
    Simplilearn Support

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    #1
  2. rishi_wmalhotra

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    Hi Kapil Sir,

    Please confirm why was the following code showing the result as True. As per my understanding all conditions have to be True to get single Output as True

    e = c(1,3.4,5.1,10.3)
    a1=4

    > e<4 & a1>3
    T T F F

    > e<4 && a1>3
    [1] TRUE
     
    #2
  3. rishi_wmalhotra

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    Hello Sir,

    Posting my question here as discussed during session-

    If we have field with both numeric and char value how can we replace only char value and keep numeric value for eg if one row has 15 MB but I need to convert it to KB how will I do it - 15 MB to 15360 (need to convert for all rows that has value in MB)
     
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  4. rishi_wmalhotra

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    Hi Kapil Sir,

    I had a question regarding session on Sunday, 21 June

    Regarding Error Assumptions - 'Normal Distribution of Errors' you mentioned that normal distribution of errors mean that errors should be scattered and should not have a trend or pattern on the chart, however, the QQ plot had a strong pattern/trend and after looking at the chart (as shown below) you mentioned that as most of the data points are on the line, hence the data is normally distributed and if we remove outliers 5 and 12 the data will become more normal.

    So I am confused, should this chart have scattered data points or close to the line of good fit?
    upload_2020-6-23_19-11-54.png
     
    #4
  5. Zunubiya Mukadam

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    Hello, I have started working on project. Need some help on that.Who can help me ?
     
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  6. Zunubiya Mukadam

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    Hello Rishi,

    Did you received any reply on your questions?
     
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