Creating an array

whom — Fri, 13 Aug 2010 21:21:31 GMT

I'm trying to create a simple array a[1] = "string 1"..... a[10] = "string 10"

I'm am creating this array by reading values from a table, while looping through with a FOR statement. I'm getting an error with the first reference to a[1]. (actually a and j is initialized and incremented correctly.

what am i doing wrong? I tried going though help, but I'm not finding what I'm looking for.

Thanks,

Re: Creating an array

mpb — Sat, 14 Aug 2010 20:23:36 GMT

You probably need "a" to be a list. Try preceding your code with a line: a = {};

Then take a look in the scripting pdf docs for "Lists", "Associative Arrays", and Matrices (or Matrix).

Re: Creating an array

whom — Mon, 16 Aug 2010 15:46:23 GMT

thanks, that resolved my problem!

Re: Creating an array

pmroz — Mon, 16 Aug 2010 18:43:28 GMT

You don't need to use a For loop to get column values. Might be quicker to use GET VALUES:

style="font-size: 10pt; font-family: "Courier New"; color: black;">dt

style="font-size: 10pt; font-family: "Courier New"; color: navy;">=
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: rgb(0, 0, 221);">open
style="font-size: 10pt; font-family: "Courier New"; color: black;">(
style="font-size: 10pt; font-family: "Courier New"; color: purple;">"$SAMPLE_DATA\Big
Class.jmp"
style="font-size: 10pt; font-family: "Courier New"; color: black;">)
style="font-size: 10pt; font-family: "Courier New"; color: navy;">;
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: green;">/*
Two ways to reference a column
are shown:

style="font-size: 10pt; font-family: "Courier New"; color: green;">

style="font-size: 10pt; font-family: "Courier New"; color: green;">The
first way is useful if the
column name has funny characters, like a slash

style="font-size: 10pt; font-family: "Courier New"; color: green;">*/
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: black;">name_list
style="">
style="font-size: 10pt; font-family: "Courier New"; color: navy;">=
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: rgb(0, 0, 221);">column
style="font-size: 10pt; font-family: "Courier New"; color: black;">(
style="font-size: 10pt; font-family: "Courier New"; color: black;">dt
style="font-size: 10pt; font-family: "Courier New"; color: navy;">,
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: purple;">"name"
style="font-size: 10pt; font-family: "Courier New"; color: black;">)
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: navy;"><<
style="font-size: 10pt; font-family: "Courier New"; color: black;">
get values
style="font-size: 10pt; font-family: "Courier New"; color: navy;">;
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: black;">age_list
style="">
style="font-size: 10pt; font-family: "Courier New"; color: navy;">=
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: rgb(0, 0, 221);">column
style="font-size: 10pt; font-family: "Courier New"; color: black;">(
style="font-size: 10pt; font-family: "Courier New"; color: black;">dt
style="font-size: 10pt; font-family: "Courier New"; color: navy;">,
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: purple;">"age"
style="font-size: 10pt; font-family: "Courier New"; color: black;">)
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: navy;"><<
style="font-size: 10pt; font-family: "Courier New"; color: black;">
get values
style="font-size: 10pt; font-family: "Courier New"; color: navy;">;
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: green;">/*
If the column is a
straightforward name just reference it directly */
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: black;">sex_list
style="">
style="font-size: 10pt; font-family: "Courier New"; color: navy;">=
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: navy;">:
style="font-size: 10pt; font-family: "Courier New"; color: black;">sex

style="font-size: 10pt; font-family: "Courier New"; color: navy;"><<
style="font-size: 10pt; font-family: "Courier New"; color: black;">
get values
style="font-size: 10pt; font-family: "Courier New"; color: navy;">;
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: black;">height_list

style="font-size: 10pt; font-family: "Courier New"; color: navy;">=
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: navy;">:
style="font-size: 10pt; font-family: "Courier New"; color: black;">height

style="font-size: 10pt; font-family: "Courier New"; color: navy;"><<
style="font-size: 10pt; font-family: "Courier New"; color: black;">
get values
style="font-size: 10pt; font-family: "Courier New"; color: navy;">;
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: black;">weight_list

style="font-size: 10pt; font-family: "Courier New"; color: navy;">=
style="font-size: 10pt; font-family: "Courier New"; color: black;">

style="font-size: 10pt; font-family: "Courier New"; color: navy;">:
style="font-size: 10pt; font-family: "Courier New"; color: black;">weight

style="font-size: 10pt; font-family: "Courier New"; color: navy;"><<
style="font-size: 10pt; font-family: "Courier New"; color: black;">
get values
style="font-size: 10pt; font-family: "Courier New"; color: navy;">;
style="font-size: 10pt; font-family: "Courier New"; color: black;">

Regards,
Peter

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Creating an array

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