[GRASS-dev] Re: [GRASS GIS] #430: i.pca's output and history logged "Comments" disagree

Markus Neteler neteler at osgeo.org
Mon Mar 16 10:57:18 EDT 2009


On Mon, Mar 16, 2009 at 11:46 AM, Hamish <hamish_b at yahoo.com> wrote:
>
> Nikos:
>>  Now that I look again at the results (meaning the tests I have sent in
>> the ML and in the wiki as well [1]) I think that your thought about
>> increasing the decimals printed in i.pca's output is not a bad idea.
>>  Perhaps adding one more digit to make it look like
>
> I would like to increase it to %.4f, and add a comma between numbers.
> I am away from the office and not able to do anything in svn or any code
> testing for the next few weeks. I'm just a few minutes a day with webmail
> access right now.
> (that's an invitation for someone else to make the change)

Patch attached (maybe there is a better way to write it):

NC:
g.region rast=lsat7_2002_pca.5  -p
i.pca in=lsat7_2002_10,lsat7_2002_20,lsat7_2002_30,lsat7_2002_40,lsat7_2002_50,lsat7_2002_70
out=lsat7_2002_pca
...
Eigen values, (vectors), and [percent importance]:
PC1 4712.17 (-0.2798,-0.3332,-0.5054,-0.0015,-0.5341,-0.5196) [ 84.0537% ]
PC2 595.40 (-0.2528,-0.1877,-0.2969, 0.7494, 0.5002, 0.0289) [ 10.6206% ]
PC3 240.56 ( 0.3864, 0.3842, 0.2670, 0.6147,-0.4058,-0.2987) [ 4.2910% ]
PC4 33.01 (-0.1768, 0.0165, 0.4083,-0.1576, 0.4396,-0.7640) [ 0.5888% ]
PC5 20.75 (-0.6063,-0.2610, 0.6087, 0.1795,-0.3255, 0.2357) [ 0.3701% ]
PC6 4.25 ( 0.5565,-0.7986, 0.2186, 0.0583, 0.0255,-0.0265) [ 0.0759% ]

Markus
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