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Latest Discussions

• Misclassification rate, who is right?

    Hi! JMP fans and experts  In Logistic regression, partition and Neural Network model cmparising, Misclassification rate acts as an important measure to determine which model is better or not? In my understanding, Smaller the value of misclassification rate is, better the model will be; however, I was confused by following cases. In the first case, I was told that larger one is better, but in the...

  mujahida

  Discussions |

  Jan 11, 2016 4:54 AM

  20570 views | 1 replies

• counting rows based on values in another column

  I have a column that defines a grouping, like a column called 'gender' that contains the values 'male' and 'female'. I want to know how many rows in the dataset = 'male' and how many rows in the dataset = 'female'.

  dwaterson

  Discussions |

  Jan 8, 2016 6:04 PM

  16664 views | 5 replies

• Calculating Derivatives/Slopes in JMP

  Hello again,I have to columns of data, let's call them x and y.  I want to calculate the center derivative of y with respect to x (dy/dx).  If I am using the center derivative, that means I will be "missing" a point at the beginning and end of the dy/dx column.For example, in row two of dy/dx, I want it to equal dy/dx = y3-y1/x3-x1 and on row three of dy/dx, I want it to equal dy/dx = y4-y2/x4-x2....

  natalie_

  Discussions |

  Jan 8, 2016 10:55 AM

  16070 views | 3 replies

• JLS- Divide Column by a Value

  Hi again,I am writing some script which opens several csv files and joins them; it is working well!In one column, I'd like to divide the values of another column by a value.  I just can't figure it out.  I can do it on the formula editor though, but I don't believe I can use that syntax while scripting.    dt << New Column(".");  //just to create a blank column    dt << New Column("Id(A/mm)");    ...

  natalie_

  Discussions |

  Jan 8, 2016 8:17 AM

  12238 views | 4 replies

• Adding date and time columns

  I have a data set with a date column and a time column. In order to create a long date column, I tried using a simple formula to add those two columns, but for some rows the resulting date is in 2011 instead of 2015. This only happened for about 700 of the rows, with the other 16000 returning the correct year. Has anyone else experienced this?

  szfunh

  Discussions |

  Jan 8, 2016 7:58 AM

  14791 views | 6 replies