https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE17215
image.png
每个函数的参数都有很多,所以,必须了解Tab键(补全,根据你键入的信息进行联想)
#####comment.char 设置注释的标识符;skip设置跳过行数;其他的参数,大家可以自行意会
a<-read.csv('C:/Users/Administrator/Documents/test/GSE17215_series_matrix.txt')
b<-read.csv('C:/Users/Administrator/Documents/test/GSE17215_series_matrix.txt',comment.char = '!')
d<-read.csv('C:/Users/Administrator/Documents/test/GSE17215_series_matrix.txt',comment.char = '!',sep='\t')
f<-read.table('C:/Users/Administrator/Documents/test/GSE17215_series_matrix.txt',sep = '\t',fill=T,skip=66,header=T)
####dim(询问数据类型的维度)
dim(d)
dim(f)
head(d)
head(f)
tail(d)
tail(f)
write.table(x = f,file = '0418.txt')