Hello Perl Monks!

I'm trying to generate charts from a newly created xls table. I use Spreadsheet::WriteExcel add_chart command. I tested the short code provided with the documentation and it worked perfectly. So the package is installed correctly.

However, after putting it into my code I get an error: 
Tk::Error: Can't locate object method "add_chart" via package "Spreads
+heet::WriteExcel::Worksheet" at C:\perl\KDC_v3charts.pl line 1352.
main::analysis at C:\perl\KDC_v3charts.pl line 1352
Tk callback for .button4
Tk:__ANON__ at C:/Perl/site/lib/Tk.pm line 250
Tk::Button::butUp at C:/Perl/site/lib/Tk/Button.pm line 175
<ButtonRelease-1>
<command bound to event>

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My program looks generally like this (rough frame was created by Zooz): 
#!/usr/bin/perl

use strict;
use warnings;

use Tk; #GUI
use Tk::DirTree; #GUI
use Cwd; #Current working dir
use Tk::NumEntry; #GUI
use Spreadsheet::ParseExcel; #Excel I/O
use Statistics::Descriptive; #Statistics
use Spreadsheet::WriteExcel; #Excel I/O
use Spreadsheet::WriteExcel:Worksheet;


listed global variables


Tk MainLoop, where there is main window created for user input, multip
+le variables, and the  submit button:

$ZWIDGETS{'Button3'} = $MW->Button(
   -text => 'SUBMIT FOR ANALYSIS',
   -command      => 'main::analysis',
  )->grid(
   -row    => 15,
   -column => 0,
   -sticky => 'w',
   -padx   => 5,
   -pady   => 5,
  )


sub analysis {

importing data from an input file

multiple statistical calculations

creating a new output xls file via

my $EXworkbook = Spreadsheet::WriteExcel->new("output.xls")

my $EXworksheet = $EXworkbook->add_worksheet('Worksheet1')

writing statistical calculations into worksheet

}

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Works great! But... Then I tried to add new charts via 
my $chart = $EXworksheet->add_chart( type => 'column', embedded => 1 )

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If I try to embedd this into the main 'analysis' sub I get the above error.

If I try to place it as a separate sub (either within main sub or outside).... nothing happens

The package should be ok, since the standalone code generates charts. Any thoughts? Thanks.

In reply to Tk / Spreadsheet::WriteExcel Charts problem by marcinski

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