the data that i used are imported from excel . and i did not remove them .
this is the code that i wrote
##testing the stationnarity of google trend ##
summary(gt_4cc)
x1 <- gt_4cc$BTC adjusted Gt
y1 <- gt_4cc$LTC adjusted Gt
z1 <- gt_4cc$ETH_C adjusted Gt
w1 <- gt_4cc$ETH adjusted Gt
##log##
adf.test(log(x1))
adf.test(log(y1))
adf.test(log(z1))
adf.test(log(w1))
the adf test dosen't work only with y1 and z1