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Re: Entire Results from R

by haukex (Archbishop)
on Feb 21, 2019 at 09:14 UTC ( [id://1230285]=note: print w/replies, xml ) Need Help??

in reply to Entire Results from R

Your use of $R->set() is incorrect: to set multiple values, you have to pass an arrayref: $R->set( 'data', ["2016-03-15 13","2016-03-16 23","2016-03-17 06","2016-03-18 15","2016-03-19 08","2016-03-20 21"] ); Then the code works for me.

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Re^2: Entire Results from R
by kevbot (Vicar) on Feb 22, 2019 at 06:36 UTC
    ++haukex I put together a short script to confirm that your solution works (I was curious about Statistics::R since I had not used it before). This code,
    #!/usr/bin/env perl use Statistics::R; use Data::Dumper; # Create a communication bridge with R and start R my $R = Statistics::R->new(); $R->set( 'data', [ "2016-03-15 13", "2016-03-16 23", "2016-03-17 06", "2016-03-18 15", "2016-03-19 08", "2016-03-20 21" ] ); $R->run( q`datevec <- strptime(data,"%Y-%m-%d %H")` ); $R->run( q`xx <- difftime(datevec[-length(datevec)],datevec[-1],units= +"hours")` ); @Rres = $R->get('xx'); print Dumper(\@Rres); exit;
    Gives this output,
    $VAR1 = [ [ '[1]', '-34', '-7', '-33', '-17', '-37' ] ];

      Thanks for the example! I also submitted a pull request that adds a "too many arguments" error to ->set.

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