slicearray — Take a slice of a vector.
istart -- index of the first part of the answer.
iend -- index of the last element of the answer.
istride -- increment for source elements (optional), defaults to 1.
Here is an example of the slicearray opcode. It uses the file slicearray.csd.
Example 973. Example of the slicearray opcode.
See the sections Real-time Audio and Command Line Flags for more information on using command line flags.
<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform -n </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 0dbfs = 1 instr 1 ;create and fill an array kArr[] genarray_i 1, 9 ;print the content printf "%s", 1, "kArr = whole array\n" kndx = 0 until kndx == lenarray(kArr) do printf "kArr[%d] = %f\n", kndx+1, kndx, kArr[kndx] kndx += 1 od ;build new arrays for the slices kArr1[] init 5 kArr2[] init 4 kArr3[] init 3 ;put in first five and last four elements kArr1 slicearray kArr, 0, 4 kArr2 slicearray kArr, 5, 8 ; and three values from 1, 1+2 and 1+2+3 kArr3 slicearray kArr, 1, 5, 2 ;print the content printf "%s", 1, "\nkArr1 = slice from index 0 to index 4\n" kndx = 0 until kndx == lenarray(kArr1) do printf "kArr1[%d] = %f\n", kndx+1, kndx, kArr1[kndx] kndx += 1 od printf "%s", 1, "\nkArr2 = slice from index 5 to index 8\n" kndx = 0 until kndx == lenarray(kArr2) do printf "kArr2[%d] = %f\n", kndx+1, kndx, kArr2[kndx] kndx += 1 od printf "%s", 1, "\nkArr3 = slice from index 1 to index 5 inc2\n" kndx = 0 until kndx == lenarray(kArr3) do printf "kArr3[%d] = %f\n", kndx+1, kndx, kArr3[kndx] kndx += 1 od turnoff endin </CsInstruments> <CsScore> i 1 0 1 </CsScore> </CsoundSynthesizer>