Berikut Kumpulan hal-hal yang perlu diketahui mengenai Analisis Regresi. mudah-mudahan mempermudah dalam mencari mengenai Analisis regresi.
Teori:
Asumsi-Asumsi yang harus dipenuhi:
Uji Asumsi Analisis Regresi linear
- Normalitas
[TUTORIAL] Uji normalitas SPSS,Uji Kenormalan Shapiro‐Wilk menggunakan R pada Paket R Commander - Homoskedastis
Penyebab, Dampak dan Mendeteksi Heteroskedastis.
Mengatasi Heteroskedastis - Non-autokorelasi
Penyebab, Dampak dan Mendeteksi AutokorelasiMengatasi uji autokorelasi (SPSS) - Non-multikoleniaritas
Bentuk Analisis Regresi yang lain:
Cobb Douglas
Teori Cobb DouglassRegresi Logistik
Konsep Regresi Logistik Biner/Dikotomi[Tutorial] Contoh Analisis Regresi Logistik biner/dikotomi dengan SPSS
hehehe kayaknya yang dipaparkan lebih bersifat teknis ya, dan bukan konsep statistiknya ... percaya deh .... manfaatnya akan lebih efektif jika konsepnya yang dipaparkan ....
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Deletecoba share rumus rumus nya donk. secara lengkap.. misal cara mencari batas atas dan batas bawah .. dalam contoh soalnya jg. thx.. :)
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ReplyDeletetanya ya, kalau untuk mengatasi data tidak normal itu diapakan ya bapak/ibu ? untuk memilih outlier itu tips yang harus diambil seperti apa? terima kasih
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ReplyDelete#input data
Deletebiayaiklan=read.csv("D:/biayaiklan.csv")
biaya = biayaiklan$biaya.iklan
penjualan =biayaiklan$penjualan
#scatterplot
plot(biaya,penjualan)
#korelasidankovariansi
cov(biaya, penjualan)
cor(biaya, penjualan)
#koefisienmodel
model=lm(penjualan~biaya)
summary(model)
#titik kritis
fcrit = qf(1-0.05,1,10)
fcrit
tcrit = qt(1-0.05/2,10)
tcrit
#plot model
abline(model)
#residual
model.res=resid(model)
plot(biaya,model.res.ylab="penjualan",xlab="biaya iklan", main="plot residual")
#kenormalan residual
model.stdres=rstandard(model)
#plot kenormalan residual
qqnorm(model.stdres,ylab="standarized residuals",
xlab="normal scores", main="plot kenormalan residual")
sama sampean liat ya mas dari data tersebut itu cara pakai R salah satunya bukannya bilang mboh mas si nilainya tar ada B0 sama B1 diperoleh dari estimate std kebawah bagus kok pake R gampang mas ra angel nek F hitung mu mas>ftabel berati Ho mu ditolak ono korelasi brati. terakhir mas mbok delo neng tcrit neng buri kirimu mas terus ono thitung seng 6,7 nek ra seneng karo uji F iso ngoo uji T. selamat mencoba mas salam statistika
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