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How to sort an array of integers correctly
... I tried this with negative numbers and had a strange result: > new Uint32Array([ -4, -7, 1, 4 ]).sort() returned Uint32Array(4) [ 1, 4, 4294967289, 4294967292 ].
– Nikolay D
Sep 5 at 12:24
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What's the best way to bundle static resources in a Go program? [closed]
...k like line below (and some example can be found here)
var imageArray = []uint8{/*$binfile("./image.png","uint8[]")$*/}
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how to convert an RGB image to numpy array?
...e ) :
img = Image.fromarray( np.asarray( np.clip(npdata,0,255), dtype="uint8"), "L" )
img.save( outfilename )
The 'Image.fromarray' is a little ugly because I clip incoming data to [0,255], convert to bytes, then create a grayscale image. I mostly work in gray.
An RGB image would be somet...
Forward declaring an enum in C++
... I was looking for enum32_t and with your answer enum XXX : uint32_t {a,b,c};
– fantastory
Feb 17 '15 at 8:19
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How do I get the color from a hexadecimal color code using .NET?
...hod:
static class ExtensionMethods
{
public static Color ToColor(this uint argb)
{
return Color.FromArgb((byte)((argb & -16777216)>> 0x18),
(byte)((argb & 0xff0000)>> 0x10),
(byte)((argb & 0...
How to get device make and model on iOS?
...turn identifier }
return identifier + String(UnicodeScalar(UInt8(value)))
}
return identifier
}
}
print(UIDevice.current.modelName)
The result should be:
// Output on a simulator
@"i386" on 32-bit Simulator
@"x86_64" on 64-bit Simul...
Simple calculations for working with lat/lon and km distance?
...> CLLocation {
let latDistance = (Double(arc4random()) / Double(UInt32.max)) * offset * 2.0 - offset
let longDistanceMax = sqrt(offset * offset - latDistance * latDistance)
let longDistance = (Double(arc4random()) / Double(UInt32.max)) * longDistanceMax * 2.0 - longDistanc...
Creating a BLOB from a Base64 string in JavaScript
...his array of byte values into a real typed byte array by passing it to the Uint8Array constructor.
const byteArray = new Uint8Array(byteNumbers);
This in turn can be converted to a BLOB by wrapping it in an array and passing it to the Blob constructor.
const blob = new Blob([byteArray], {type: c...
Change column type from string to float in Pandas
...verting to an unsigned 8-bit type to save memory?
>>> s.astype(np.uint8)
0 1
1 2
2 249
dtype: uint8
The conversion worked, but the -7 was wrapped round to become 249 (i.e. 28 - 7)!
Trying to downcast using pd.to_numeric(s, downcast='unsigned') instead could help prevent this e...
Pandas read_csv low_memory and dtype options
...ain use is for indexing. See more here
'Int8', 'Int16', 'Int32', 'Int64', 'UInt8', 'UInt16', 'UInt32', 'UInt64' are all pandas specific integers that are nullable, unlike the numpy variant.
'string' is a specific dtype for working with string data and gives access to the .str attribute on the series...