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Programmatically obtain the Android API level of a device?
...llowing way (it will execute if the current device's API level is at least 4)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.DONUT) {
}
To obtain user visible Android Version use:
Build.VERSION.RELEASE
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How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly
I have a dataframe with ~300K rows and ~40 columns.
I want to find out if any rows contain null values - and put these 'null'-rows into a separate dataframe so that I could explore them easily.
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Reduce, fold or scan (Left/Right)?
...e first argument res of our binary operator minus:
val xs = List(1, 2, 3, 4)
def minus(res: Int, x: Int) = {
println(s"op: $res - $x = ${res - x}")
res - x
}
xs.reduceLeft(minus)
// op: 1 - 2 = -1
// op: -1 - 3 = -4 // de-cumulates value -1 in *first* operator arg `res`
// op: -4 - 4 = -8
//...
How can I plot with 2 different y-axes?
...ach set of points has its own (different) y-axis (i.e., in positions 2 and 4 on the figure) but the points appear superimposed on the same figure.
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Format number to 2 decimal places
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84
You want to use the TRUNCATE command.
https://dev.mysql.com/doc/refman/8.0/en/mathematical-func...
cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
...令cpuid就是一条读取CPU各种信息的一条指令，大概是从80486的某个版本开始就存在了。 CPUID这条指令，除了用于识别CPU（CPU的型号...cpuid指令
cpuid就是一条读取CPU各种信息的一条指令，大概是从80486的某个版本开始就存在了。 CP...
Get distance between two points in canvas
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answered Jan 4 '14 at 4:41
Igor ŠarčevićIgor Šarčević
2,85311 gold badge1414 silver badges1818 bronze badges
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How to get row from R data.frame
...for example:
#Add your data
x <- structure(list(A = c(5, 3.5, 3.25, 4.25, 1.5 ),
B = c(4.25, 4, 4, 4.5, 4.5 ),
C = c(4.5, 2.5, 4, 2.25, 3 )
),
.Names = c("A", "B", "C"),
class = "data.f...
Python creating a dictionary of lists
... 'a' is not defined
– S Andrew
Nov 14 '18 at 13:18
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How to get a specific output iterating a hash in Ruby?
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answered Aug 4 '09 at 13:38
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