read only certain columns from an asci file

[delldell]

Hi

I have a file with an header (the column names) and data

fields and data are delimited by space

example

date size amount lenght number

1/1/2009 20 2000 12 3

..

..

other 100 rows with similar data

....

2/3/2009 10 4000 1 333

i would like to read only the data that "belongs" to the fields amount and number

keep in mind that order an number of fields in the header can change

example of other header

size number length other1 other2 other3 other4 other5 amount other6 other7.......

any suggestion ?

thanks

(i need something like get data by column name)

[mbrowne]

This should be what you need.....

Hi

I have a file with an header (the column names) and data

fields and data are delimited by space

example

date size amount lenght number

1/1/2009 20 2000 12 3

..

..

other 100 rows with similar data

....

2/3/2009 10 4000 1 333

i would like to read only the data that "belongs" to the fields amount and number

keep in mind that order an number of fields in the header can change

example of other header

size number length other1 other2 other3 other4 other5 amount other6 other7.......

any suggestion ?

thanks

(i need something like get data by column name)

[delldell]

Good

thank you very much

i 'll try

[delldell]

i am afraid i can't find this function. i'm using labview 8.5. what are its features ? what is its name ?

thanks

[mbrowne]

It is just the Index Array in the Array Sub-Palette

[from the LabVIEW Help]

When you wire an array to this function, the function resizes automatically to display index inputs for each dimension in the array you wire to n-dimension array. You also can add additional element or subarray terminals by resizing the function. The connector pane displays the default data types for this polymorphic function.

[/from the LabVIEW Help]

In this case when you wire up the 2D string array to the array input it resizes to provide a row and col index.

Just wire up the col index (leaving the row index unwired) to get the complete column.

i am afraid i can't find this function. i'm using labview 8.5. what are its features ? what is its name ?

thanks

[delldell]

thank you very much and excuse me

i have learnt a lot from your examples

bye