[Tutor] populating an array or using a dictionary

Eric Brunson brunson at brunson.com
Fri Oct 19 18:02:48 CEST 2007


Bryan Fodness wrote:
> The data file is larger than shown, and I was wondering if it would be 
> better to populate an array or create a dictionary.  Which would be 
> easier?
>

A dictionary is an array with an index, if you need an index into your 
data, use a dictionary, if not use an array.


>  
> On 10/19/07, *Kent Johnson* <kent37 at tds.net <mailto:kent37 at tds.net>> 
> wrote:
>
>     Bryan Fodness wrote:
>     > I have a data file that I would like to extract data from:
>     >
>     > FS   1   2   3   4   5
>     > 1.5   1.000   1.000   1.000   1.000   1.000
>     > 2.0   0.985   0.994   0.997   0.996   0.996
>     > 2.5   0.967   0.976   0.981   0.981   0.982
>     > 3.0   0.949   0.958   0.965   0.966   0.967
>     > 3.5   0.925   0.937   0.945   0.948   0.951
>     > 4.0   0.901   0.916   0.925   0.930   0.934
>     > 4.5   0.882   0.896   0.906   0.912   0.917
>     > 5.0   0.863   0.876   0.887   0.893   0.899
>     >
>     >
>     > The first row is a variable d, and the first column is FS.  Any
>     > suggestions on the best way to do this.
>
>     This looks the same as the question you asked on Wednesday...do
>     you have
>     some code already?
>
>     It helps if you can show what you have already done and ask for help
>     with changes.
>
>     Kent
>
>
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