Setting up input to an R application using Shiny












0















I have a table like this:



Students(id, grade_course_a, grade_course_b, grade_course_c)



I would like to create a frequency test in R to see the correlation between any two courses. I know how to get the frequencies using table function in R. Now I would like the user to be able to select the courses via drop-down menus. From what I have seen, I need a UI file and a server file, but I have trouble understanding how to do it. Can you point me in the right direction?










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  • 1





    You should start with a turorial, like we all did ;) shiny.rstudio.com/tutorial. If you come to the Point that you have build a Dashboard with a specific question, we are happy to help,...good luck!

    – BigDataScientist
    Nov 21 '18 at 19:07
















0















I have a table like this:



Students(id, grade_course_a, grade_course_b, grade_course_c)



I would like to create a frequency test in R to see the correlation between any two courses. I know how to get the frequencies using table function in R. Now I would like the user to be able to select the courses via drop-down menus. From what I have seen, I need a UI file and a server file, but I have trouble understanding how to do it. Can you point me in the right direction?










share|improve this question


















  • 1





    You should start with a turorial, like we all did ;) shiny.rstudio.com/tutorial. If you come to the Point that you have build a Dashboard with a specific question, we are happy to help,...good luck!

    – BigDataScientist
    Nov 21 '18 at 19:07














0












0








0








I have a table like this:



Students(id, grade_course_a, grade_course_b, grade_course_c)



I would like to create a frequency test in R to see the correlation between any two courses. I know how to get the frequencies using table function in R. Now I would like the user to be able to select the courses via drop-down menus. From what I have seen, I need a UI file and a server file, but I have trouble understanding how to do it. Can you point me in the right direction?










share|improve this question














I have a table like this:



Students(id, grade_course_a, grade_course_b, grade_course_c)



I would like to create a frequency test in R to see the correlation between any two courses. I know how to get the frequencies using table function in R. Now I would like the user to be able to select the courses via drop-down menus. From what I have seen, I need a UI file and a server file, but I have trouble understanding how to do it. Can you point me in the right direction?







r shiny shiny-server shinydashboard frequency-analysis






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asked Nov 21 '18 at 17:59









Tapal GoosalTapal Goosal

807




807








  • 1





    You should start with a turorial, like we all did ;) shiny.rstudio.com/tutorial. If you come to the Point that you have build a Dashboard with a specific question, we are happy to help,...good luck!

    – BigDataScientist
    Nov 21 '18 at 19:07














  • 1





    You should start with a turorial, like we all did ;) shiny.rstudio.com/tutorial. If you come to the Point that you have build a Dashboard with a specific question, we are happy to help,...good luck!

    – BigDataScientist
    Nov 21 '18 at 19:07








1




1





You should start with a turorial, like we all did ;) shiny.rstudio.com/tutorial. If you come to the Point that you have build a Dashboard with a specific question, we are happy to help,...good luck!

– BigDataScientist
Nov 21 '18 at 19:07





You should start with a turorial, like we all did ;) shiny.rstudio.com/tutorial. If you come to the Point that you have build a Dashboard with a specific question, we are happy to help,...good luck!

– BigDataScientist
Nov 21 '18 at 19:07












1 Answer
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For a simple visual inspection an interactive plot might be sufficient?
The traces can be hidden by clicking on the legend.



library(reshape2)
library(plotly)

Students <- data.frame(stud_id=seq(30), grade_course_a=round(runif(30, 1, 6)), grade_course_b=round(runif(30, 1, 6)), grade_course_c=round(runif(30, 1, 6)))

moltenStudents <- melt(Students, "stud_id", 2:ncol(Students))
moltenStudents$grade <- LETTERS[moltenStudents$value]

plot_ly(moltenStudents,
x = ~stud_id,
y = ~value,
color = ~variable,
text = ~grade,
type = 'scatter',
mode = 'lines'
)





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    For a simple visual inspection an interactive plot might be sufficient?
    The traces can be hidden by clicking on the legend.



    library(reshape2)
    library(plotly)

    Students <- data.frame(stud_id=seq(30), grade_course_a=round(runif(30, 1, 6)), grade_course_b=round(runif(30, 1, 6)), grade_course_c=round(runif(30, 1, 6)))

    moltenStudents <- melt(Students, "stud_id", 2:ncol(Students))
    moltenStudents$grade <- LETTERS[moltenStudents$value]

    plot_ly(moltenStudents,
    x = ~stud_id,
    y = ~value,
    color = ~variable,
    text = ~grade,
    type = 'scatter',
    mode = 'lines'
    )





    share|improve this answer




























      0














      For a simple visual inspection an interactive plot might be sufficient?
      The traces can be hidden by clicking on the legend.



      library(reshape2)
      library(plotly)

      Students <- data.frame(stud_id=seq(30), grade_course_a=round(runif(30, 1, 6)), grade_course_b=round(runif(30, 1, 6)), grade_course_c=round(runif(30, 1, 6)))

      moltenStudents <- melt(Students, "stud_id", 2:ncol(Students))
      moltenStudents$grade <- LETTERS[moltenStudents$value]

      plot_ly(moltenStudents,
      x = ~stud_id,
      y = ~value,
      color = ~variable,
      text = ~grade,
      type = 'scatter',
      mode = 'lines'
      )





      share|improve this answer


























        0












        0








        0







        For a simple visual inspection an interactive plot might be sufficient?
        The traces can be hidden by clicking on the legend.



        library(reshape2)
        library(plotly)

        Students <- data.frame(stud_id=seq(30), grade_course_a=round(runif(30, 1, 6)), grade_course_b=round(runif(30, 1, 6)), grade_course_c=round(runif(30, 1, 6)))

        moltenStudents <- melt(Students, "stud_id", 2:ncol(Students))
        moltenStudents$grade <- LETTERS[moltenStudents$value]

        plot_ly(moltenStudents,
        x = ~stud_id,
        y = ~value,
        color = ~variable,
        text = ~grade,
        type = 'scatter',
        mode = 'lines'
        )





        share|improve this answer













        For a simple visual inspection an interactive plot might be sufficient?
        The traces can be hidden by clicking on the legend.



        library(reshape2)
        library(plotly)

        Students <- data.frame(stud_id=seq(30), grade_course_a=round(runif(30, 1, 6)), grade_course_b=round(runif(30, 1, 6)), grade_course_c=round(runif(30, 1, 6)))

        moltenStudents <- melt(Students, "stud_id", 2:ncol(Students))
        moltenStudents$grade <- LETTERS[moltenStudents$value]

        plot_ly(moltenStudents,
        x = ~stud_id,
        y = ~value,
        color = ~variable,
        text = ~grade,
        type = 'scatter',
        mode = 'lines'
        )






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        share|improve this answer










        answered Nov 21 '18 at 20:43









        ismirsehregalismirsehregal

        1,6321212




        1,6321212
































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