Arsip: tanya eror matrix

more 8 years ago
diandewi
halo para master... bisa bantu benerin erornya dari code saya. erornya kyk gini:
[DCC Error] Question19653Project1Unit1.pas(118): E2064 Left side cannot be assigned to.
pada baris ini
Ref[0][J] := Ref[0][J]+ alpha(Ref[0][J]-Matrix[I,J]);
for K := 0 to 1 do //for each reference
begin
Memo1.Lines.Add('Reference: '+IntToStr(K));
for I := 0 to 9 do //for each row
begin
X := 0;
for J := 0 to 9 do //for each column
X := X+Power(Ref[K,J]-Matrix[I,J], 2);
X := Sqrt(X);
EuclDist[K,I]:= X;
Memo1.Lines.Add( Format('%0:20.18f',[X] ));
end;
Memo1.Lines.Add('');
end;
//end;
for I := 0 to 9 do
begin
if ((EuclDist[0][I]) < (EuclDist[1][I]))or ((EuclDist[0][I]) = (EuclDist[1][I])) then
begin
target:=0 ;
for j:= 0 to 9 do
if target=(matrix[i][j]) then
begin
Ref[0][J] := Ref[0][J]+ alpha (Ref[0][J]-Matrix[I,J]);
end
else
begin
Ref[0][J] := Ref[0][J]- alpha*(Ref[0][J]-Matrix[I,J]);
end;
end;

more 8 years ago
halimanh
Ref itu di deklarasinya sebagai constant yah?
const
ref [a, b] = array of ...
Kalo const itu artinya tetap, nggak bisa dirubah. Kalo ref mau dirubah-rubah, didekarasikan sebagai variable
var
ref [a , b] : array of ...

more 8 years ago
diandewi
oiya bener....setelah saya ubah jadi var langsung mau :)
trus saya mau nanya lg satu
di code ini
for I := 0 to 9 do
begin
if ((EuclDist[0][I]) < (EuclDist[1][I]))or ((EuclDist[0][I]) = (EuclDist[1][I])) then
begin
target:=0 ;
for j:= 0 to 9 do
if target=(matrix[i][9]) then
begin
pas baris f target=(matrix[i][9]) then
mksdnya jika target = matrix ke i kolom terakhir dimana matrixnya berukuran 10x10. apa bener kyk gt codenya? ato salah?
more 8 years ago
halimanh
Yah tergantung indeksnya, kalo indeknya 0 sampe 9, berarti 9 itu kolom terakhir. Kalo indeknya 1 sampe 10, 10 itu kolom terakhir.

more 8 years ago
diandewi
ya, indexnya 0 sampe 9 dan saya mau manggil kolom ke sembilan dari tiap2 baris..
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