Filtering row values that are not within a given range (JSL)I am trying to automate some data cleaning. I have lower and high limit values that are considered valid per column and I want to remove verything else having at the end empty values instead. I am missing:
- How to clear row values once there is a selection.
- How to reference a column name
- If there is a better way to do it.
Names Default To Here( 1 );
dt = Current Data Table();
lower_limit = 69.636;
higher_limit = 71.482;
sel = dt << Select Where( :my_column_name>= lower_limit &
:my_column_name<= higher_limit );
sel << Invert Row Selection;
// clear rows (sel)??
/*
// Here I am trying to do the same but referencing the column. Yet it does not work.
mycol = Column("my_column_name"); // this does not work
mycol = :my_column_name; // this does not work either
sel = dt << Select Where( mycol >= lower_limit &
mycol <= higher_limit );
*/
Re: Filtering row values that are not within a given range (JSL)You should look up the Function As Column(). If you want to use column values, the syntax is ref_name[], that is, left bracket, right bracket. Try the syntax below.
sel = dt << Select Where( mycol[] >= lower_limit &
mycol[] <= higher_limit );
Re: Filtering row values that are not within a given range (JSL)Excellent, how can I then remove the values of that specific selection (rows and column)?
Re: Filtering row values that are not within a given range (JSL)Did you wnat to replace the values in that column to empty, or do you wnat to delete the rows?
Names Default To Here( 1 );
dt = Open("$sample_data/big class.jmp");
lower_limit = 70;
higher_limit = 150;
mycol = Column("weight");
sel = dt << Get Rows Where ( mycol[] < lower_limit |
mycol[] > higher_limit );
mycol[sel]= empty();
//to delete rows use
// dt << delete rows(sel);
Re: Filtering row values that are not within a given range (JSL)Thanks, this is what I was looking for.
I have this message in my table, though: Attempt to assign to a locked column mycol.
