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  • How to create an apply function with the dataset and function below in R?

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    Answer it

    I have this function:

     

    xa <- 9

    xb <- 6

    za <- 20

     

    a1 <- xa / za

    b1 <- xb / za

     

    Validation <- function (a1, b1)

      

    if (a1 / b1 >= .85 && a1 / b1 <= 1.15) {print(TRUE)}

     

    result <- Validation (a1, b1)

     

    result

     

    The value of xa, xb, and za change ten times and there are also three other trios of data that change ten times: 

     

    c1 <- xc / zc

    d1 <- xd / zc

     

    e1 <- xe / ze

    f1 <- xf / ze

     

    g1 <- xg / zg

    h1 <- xh / zg

     

    as you can see in the dataframe below:

     

    mat <- data.frame(xa = sample(0:10,  10, replace = TRUE),

                      xb = sample(0:10,  10, replace = TRUE),

                      za = sample(10:20, 10, replace = TRUE),

                      xc = sample(0:10,  10, replace = TRUE),

                      xd = sample(0:10,  10, replace = TRUE),

                      zc = sample(10:20, 10, replace = TRUE),

                      xe = sample(0:10,  10, replace = TRUE),

                      xf = sample(0:10,  10, replace = TRUE),

                      ze = sample(10:20, 10, replace = TRUE),

                      xg = sample(0:10,  10, replace = TRUE),

                      xh = sample(0:10,  10, replace = TRUE),

                      zg = sample(10:20, 10, replace = TRUE))

                      

    mat

     

    So, my question is: How can I create a function that also considers these three other trios of data and run the 'if' function for the ten lines of the dataframe? 

     

    I ultimately want to have an output of ten lines and four columns (za, zc, ze, zg) with the information: TRUE or NULL.

     

    Thanks,

 0 Answer(s)

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