python - pandas matplotlib .plot(kind='hist') vs .plot(kind='bar') issue -


i have pandas dataframe named firstperiod , column named megaball. range of values in megaball 1 25, , line of code:

print firstperiod.megaball.value_counts().sort_index()

gives me this, want see (the # of occurrences per possible value)

1     12 2      4 3      9 4      4 5      3 6      6 7      5 8      8 9      7 10    10 11     6 12     5 13     3 14     5 15     6 16     8 17    15 18     7 19     8 20     5 21     8 22     7 23     1 24    11 25     9   firstperiod.megaball.value_counts().sort_index().plot(kind='bar') plt.show()

^this shows me bar chart fine, x-axis values 25, y-axis values 15.

but reason, when want histogram instead of bar chart (and change parameter value kind=, gives me totally incorrect , different bar chart values earlier. why that? , how fix histogram?

firstperiod.megaball.value_counts().sort_index().plot(kind='hist') plt.show()

that's because "hist" plot not plotting data, first estimating empirical distribution of raw data , plotting result. is, "hist" going bin data, count instances per bin , plot that, there no need of doing value_counts() ourselves.

therefore, equivalent of: 

firstperiod.megaball.value_counts().sort_index().plot(kind='bar')

should be: 

firstperiod.megaball.plot(kind='hist')

Comments

Post a Comment

Popular posts from this blog

javascript - Bootstrap Popover: iOS Safari strange behaviour -

i looking through twitter bootstrap documentation, , i'm interested in implementing dismissible popover when button clicked. here example bootstrap's docs: http://getbootstrap.com/javascript/#dismiss-on-next-click when press "dismissible popover" button os x safari browser works fine. when access same link above ios safari, button not work. is, popover not dismissed on click. why button not working ios safari? the example linked using data-trigger="focus" attribute. try changing data-trigger="click" . <a tabindex="0" class="btn btn-lg btn-danger" role="button" data-toggle="popover" data-trigger="click" title="dismissible popover" data-content="and here's amazing content. it's engaging. right?">dismissible popover</a>
Read more

Magento/PHP - Get phones on all members in a customer group -

i working on custom magento extension. working around adminhtml part , i've created custom form there. here form code: <?php class vivasindustries_smsnotification_block_adminhtml_sms_sendmass_edit_form extends mage_adminhtml_block_widget_form { public function _preparelayout() { $extensionpath = mage::getmoduledir('js', 'vivasindustries_smsnotification'); $head = $this->getlayout()->getblock('head'); $head->addjs('jquery.js'); $head->addjs('vivas.js'); return parent::_preparelayout(); } protected function _prepareform() { $form = new varien_data_form(array( 'id' => 'edit_form', 'action' => $this->geturl('*/*/save', array('id' => $this->getrequest()->get...
Read more

spring cloud - How to configure SpringCloud Eureka instance to point to https on non standard port -

i using spring boot/cloud actuator, , annotate application class @enableeurekaclient, applications comes , registers correctly eureka server. however, because configure application run on https, , on port 8444, eureka instance not registered correct protocol, instead using http. example http://localhost:8761/eureka/apps/ gives me <homepageurl>http://localhost:8444/</homepageurl> <statuspageurl>http://localhost:8444/info</statuspageurl> <healthcheckurl>http://localhost:8444/health</healthcheckurl> there no such thing securehomepageurl or securestatuspageurl - securehealthcheckurl exists. check com.netflix.appinfo.eurekainstanceconfig properties transmitted server when eureka client registers. however, having home/status/health page urls not showing https protocol doesn't mean instance isn't registered. matters whether or not secure port enabled. check following properties in client configuration: eureka.instance.se...
Read more