Band Selection from Raster Dataset

[AmirHosseinAhrari]

Hi everyone

I have a stacked raster from Landsat multispectral bands. I need to know how can I select a specific band from the stack layer in the raster calculator ArcGIS pro. Because the raster calculator just shows the name of the layer, not bands. Could anyone help me please? 

[MervynLotter]

You could use the Extract Bands raster function to extract the band of interest and then use this as input into raster calculator. Do see https://pro.arcgis.com/en/pro-app/2.8/help/analysis/raster-functions/extract-bands-function.htm

[AndyAnderson]

description = arcpy.da.Describe(raster)
for band in description ['children']:
    if (band['name'] == 'Band_x'):
        band['name'] (calculate)