fast sampling in R -

-

क्या base :: sample < / Code> फ़ंक्शन?

आप आधार को नष्ट करने से थोड़ा-सा गति प्राप्त कर सकते हैं: : नमूना फ़ंक्शन कॉल: 

  & gt; X & lt; - rnorm (10000) & gt; System.time (1: 100000 में मैं) x [अनंत (नमूना (10000 एल, 10 एल, गलत, नल))) उपयोगकर्ता सिस्टम बीत चुका 2.873 0.017 2.851 & gt; System.time (1: 100000 में मैं) नमूना (एक्स, 10)) उपयोगकर्ता सिस्टम बीत गया 3.420 0.025 3.258   
 आपकी समस्या के आधार पर गति बढ़ाने के अन्य और अधिक चालाक तरीके हो सकते हैं तुम्हारा कोड। एक छोटे से बड़े नमूने के साथ कई छोटे कॉलों को बदलने के तरीके के बारे में सोचें।

Comments

Post a Comment

Popular posts from this blog

android - How can I execute default sms app? -

-
I registered my receiver for receiving SMS when I receive the SMS, how do I execute the phone's default SMS app Can i do Can I send the intention to start the default SMS app? This can be done in a few different ways. Here's one: Send intentions = new intent (int. Action_viez); SendIntent.putExtra ("sms_body", "The content of the SMS goes here ..."); SendIntent.setType ("vnd.android-directory / MMS-SMS"); StartActivity (sendIntent);
Read more

jquery .css('text-decoration') doesn't work from parents -

-
I have to get the essential CSS property of the element (the property can be inherited from her parents) Standart Jquery .css () can do this. I have such an HTML: & Lt; Span id = "something" & gt; Our element & lt; / Span & gt; & Lt; Br> Some text & lt; / Div & gt; & Lt; Div id = "result" & gt; & Lt; / Div & gt; CSS: #some {font-weight: bold; } # Containers {text-decoration: underline; Color: RGB (0,255,0); Font-size: 32px; } and jQuery code: $ (function () {var decor = $ ("#some") .css ('text-decoration' ) Weight Weight = $ ("#Additional"). CSS ('font-weight'); var color = $ ("#some"). CSS ('color'); var size = $ ("#some") Css ('font-size'); var result = " Our object's own property: Font-weight: "+ weight +" & gt; hereditary property: & lt; / b & gt; & lt; br & gt; ; & Lt; br ...
Read more

python - sqlite3.OperationalError: near "REFERENCES": syntax error - foreign key creating -

-
I'm trying to create a predefined key after checking the manual and I wrote it: Db.execute ("create table" Table 2 (id, integer primary key, somedata integer) "db.execute" (table creation table 2 does not exist (name text, maintain reference (id) ") and found this: sqlite 3. Operation error: near" references ": syntax error Your second ligne is wrong db.execute ("create table if table does not exist 2 (name text, my_id integer, foreign key (my_id) reference Maintenance (ID)) ") as explained
Read more