Bug when redimensioning multi-dimension arrays?

[bplus]

CoPilot says it can REDim a 3 Dim array into a $ dim array and preserve the values from the original array. Here is it's suggestion. 


Certainly! To redimension a 3D array to a 4D array while preserving all values in QB64pe, you can follow these steps:

1. Let’s assume you have a 3D array called 
   
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   arr
    with the shape 
   
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   (n_bands, y_pixels, x_pixels)
   .
   
2. First, swap the 
   
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   n_bands
    axis to the end:
   
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   DIM SHARED arr(1 TO n_bands, 1 TO y_pixels, 1 TO x_pixels)
DIM SHARED arr4d(1 TO 1, 1 TO y_pixels, 1 TO x_pixels, 1 TO n_bands)

FOR x = 1 TO x_pixels
    FOR y = 1 TO y_pixels
        FOR z = 1 TO n_bands
            arr4d(1, y, x, z) = arr(z, y, x)
        NEXT z
    NEXT y
NEXT x
3. Now you have a 4D array 
   
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   arr4d
    with the desired shape 
   
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   (1, y_pixels, x_pixels, n_bands)
   , preserving all values. ?
   

Remember to adjust the array dimensions and indices according to your specific use case! 




I'll have to see if Gemini can do it.

Yeah this is fine because there is no issue with trying to use the same array name with the different dimensions.

while on the subject you can make a 1 d array, a list, into many dimensions with a little math manipulation. As steve has shown, i think, in memory it's all 1 d.