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How to select rows from a DataFrame based on column values?

...t pandas as pd # Create data set d = {'foo':[100, 111, 222], 'bar':[333, 444, 555]} df = pd.DataFrame(d) # Full dataframe: df # Shows: # bar foo # 0 333 100 # 1 444 111 # 2 555 222 # Output only the row(s) in df where foo is 222: df[df.foo == 222] # Shows: # bar foo # 2...
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Calling startActivity() from outside of an Activity?

...rmManager to trigger an intent that broadcasts a signal. The following is my code: 9 Answers ...
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List of standard lengths for database fields

I'm designing a database table and once again asking myself the same stupid question: How long should the firstname field be? ...
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How to create EditText with rounded corners? [closed]

...ine on the device but prevents the 'Graphical Layout' view from displaying my activity when I include the rounded edit box. The error log gives me a 'UnsupportedOperationException:null'. Any ideas? – Ben Clayton Apr 6 '11 at 15:13 ...
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MySQL: selecting rows where a column is null

... Marc BMarc B 333k3333 gold badges368368 silver badges452452 bronze badges ...
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How to open the Google Play Store directly from my Android application?

...f some application uses intent filter with "market://" scheme defined. See my answer how to open Google Play AND ONLY Google Play application (or webbrowser if GP not present). :-) – Berťák Jan 22 '15 at 14:18 ...
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Java: method to get position of a match in a String?

...53 DKNDK 333 bronze badges answered Apr 11 '10 at 2:21 polygenelubricantspolygenelubricants ...
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How can you run a command in bash over until success

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requestFeature() must be called before adding content

... 333 Well, just do what the error message tells you. Don't call setContentView() before requestFea...
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How do I create and access the global variables in Groovy?

...obals solution below is a way around that. – solstice333 Apr 3 '17 at 21:50 4 I tried the var1 = ...