topic Re: Filter a string using "like" ? in Discussions

Filter a string using "like" ?

geof — Thu, 03 Apr 2014 16:13:54 GMT

Hello,

Using the example below, how could I filter all the names starting like "M"

Is it possible to use "like" or something similar ?

Data Filter( Add Filter(

columns( :name ),

Where( :name like M* ) /// Not working of course !

Thanks for you help

open("$sample_data\Big class.jmp");

Graph Builder(

Size( 454, 472 ),

Show Control Panel( 0 ),

Variables( X( :age ), Y( :weight ), Y( :height ), Overlay( :name ) ),

Elements( Position( 1, 1 ), Points( X, Y, Legend( 3 ), Jitter( 1 ) ) ),

Elements( Position( 1, 2 ), Points( X, Y, Legend( 4 ), Jitter( 1 ) ) )

);

Re: Filter a string using "like" ?

mikekutz — Fri, 04 Apr 2014 13:30:18 GMT

I think the filter function you are looking for is:

starts with( name, "M" )

Re: Filter a string using "like" ?

sasguy — Fri, 04 Apr 2014 15:36:29 GMT

Your options to mimic a like statement are as follows:

Where( starts with (:name, "M" )) /* Name starting with M */

Where( ends with (:name, "M" )) /* Name ending with M */

Where( contains (:name, "M" )) /* Name contains M */

Re: Filter a string using "like" ?

Jeff_Perkinson — Sat, 05 Apr 2014 19:41:33 GMT

Unfortunately, the Data Filter in JMP doesn't support partial string matches. You must match whole values.

However, you can find all the values that match your partial string and then use that list in your call to the data filter.

dt = open("$sample_data\Big class.jmp");

Graph Builder(

Size( 454, 472 ),

Show Control Panel( 0 ),

Variables( X( :age ), Y( :weight ), Y( :height ), Overlay( :name ) ),

Elements( Position( 1, 1 ), Points( X, Y, Legend( 3 ), Jitter( 1 ) ) ),

Elements( Position( 1, 2 ), Points( X, Y, Legend( 4 ), Jitter( 1 ) ) )

);

//create a list of the unique names

summarize(nameslist=by(:name));

//create a matrix to hold the locations of the strings that match your pattern

x=[];

//loop over list of names storing the matches in x

For( i = 1, i <= N Items( nameslist ), i++,

If( Starts With( nameslist[i], "M" ),

// "|/" is the matrix vertical concat operator

x = x |/ i;

)

);

dt << Data Filter(

Location( {848, 24} ),

Add Filter(

columns( :name ),

Where( :name == nameslist[x] ),

)

);

Re: Filter a string using "like" ?

geof — Mon, 07 Apr 2014 13:16:32 GMT

Thanks for your help

Geof