not equal to symbol

[#1]

Hi,

I have the following script and it does not select the correct columns names ("Std"). Here is the script:

cols = dt << Get column Names();
 
for( i = 1, i <= N Items( cols ), i++,
if( contains( cols[i] , "Std")  != 1
,
Column( dt, cols[i] ) << Set Data Type( "Character" );
Column( dt, cols[i] ) << Set Modeling Type ("Nominal")
)
);

Looks like != does not do the job. Any help on this? Thanks

[#2]

The way I read your script, it will only change the data and modeling type for columns that immediately start with "Std" (e.g. a column named "Std Dev" would be modified, but a column named "Col Std" would not).

Contains() returns the position in the string of the substring you specified.  If cols[i] = "Std Dev", Contains(cols[i],"Std") will return the value 1.  If cols[i] = "Col Std", then Contains(cols[i], "Std") will return the value 5 because that "Std" starts with the 5th character in the string.  Only if I try a column name that doesn't have the "Std" in the name will Contains() return 0.

Contains(cols[i], "Std")  != 1 will return true for all columns names that don't immediately start with "Std".

Typically, the way to use Contains() to determine if a substring is contained within a string would be to use either "!=0" or ">0".  Switch the 1 to a 0 and see if that works.

[#3 · Accepted solution]

Thanks so much for quick help. Replacing 1 by 0 works perfectly.