How to combine even and odd index of an array

[tintin_99]

Hi,

I have an array (u8). Let's the array is as below. Array size is always even

214

115

234

117

111

123

I would like to combine every even index value with the next odd index value and make 16bit array . odds are high bits and evens are low bits. Could you please let me how can I do it in LabVIEW?

115-214  or binary  0111001111010110

117-234

123-111

[GerdW]

Hi tintin,

typecast your U8 array to an U16 array. SwapBytes if needed:

Or use DecimateArray with Join…

[crossrulz]

Decimate 1D Array followed by Join Numbers

You can also just use Type Cast to a U16.  At least on my system, you will have to use Swap Bytes after it to get the order you want.

[PalanivelThiruvenkadam]

Hi Team,

I have recently faced issue related to typecasting from U8 to U16 and it works fine for even numbers but for the odd numbers the typecast function ignores the last U8 byte, Is it a bug?

I have used other ways to achieve the solution but typecast should consider the last odd byte as well.

[Yamaeda]

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@PalanivelThiruvenkadam wrote:

Hi Team,

I have recently faced issue related to typecasting from U8 to U16 and it works fine for even numbers but for the odd numbers the typecast function ignores the last U8 byte, Is it a bug?

I have used other ways to achieve the solution but typecast should consider the last odd byte as well.

---

Type cast works for me, but Decimate requires an even number.

[GerdW]

Hi Yamaeda,

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@Yamaeda wrote:

Type cast works for me, but Decimate requires an even number.

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Only when you typecast into a scalar U16: what happens when typecasting to an array of U16?

Like this:

[PalanivelThiruvenkadam]

The problem is when you wanted to typecast to array of U16 from array of U8 it ignores the last odd byte which means it executes as same as decimate array function

[Yamaeda]

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@GerdW wrote:

Hi Yamaeda,

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@Yamaeda wrote:

Type cast works for me, but Decimate requires an even number.

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Only when you typecast into a scalar U16: what happens when typecasting to an array of U16?

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To be fair, that post didn't specify that. 🙂 

Yes, my LV2019 reacts as your example.