如何在SAS中导入包含重复列名的csv文件
我想在SAS中导入具有重复列名的CSV文件。范例 名称abc def def 是我的文件中的列名 当我尝试在SAS中导入文件时,它会自动将变量重命名为var1、var2等 我想保留原来的列名。如何执行此操作?从中可以看出,您将把变量名放在第一行,并使用如何在SAS中导入包含重复列名的csv文件,sas,Sas,我想在SAS中导入具有重复列名的CSV文件。范例 名称abc def def 是我的文件中的列名 当我尝试在SAS中导入文件时,它会自动将变量重命名为var1、var2等 我想保留原来的列名。如何执行此操作?从中可以看出,您将把变量名放在第一行,并使用GETNAMES=yes proc import datafile="C:\temp\test.csv" out=shoes dbms=csv replace; getnames=yes; run; proc print;
GETNAMES=yes
proc import datafile="C:\temp\test.csv"
out=shoes
dbms=csv
replace;
getnames=yes;
run;
proc print;
run;
从中可以看出,您将把变量名放在第一行,并使用GETNAMES=yes
proc import datafile="C:\temp\test.csv"
out=shoes
dbms=csv
replace;
getnames=yes;
run;
proc print;
run;
SAS数据集中不能有重复的列名。你必须将它们重命名为某个名称;如果您不喜欢
proc import
正在执行的操作,可以通过proc数据集
手动重命名它们
proc datasets;
modify <dataset>;
rename var1=name var2=abc1 var3=abc2 var4=def1 var5=def2;
quit;
proc数据集;
修改
重命名var1=name var2=abc1 var3=abc2 var4=def1 var5=def2;
退出
SAS数据集中不能有重复的列名。你必须将它们重命名为某个名称;如果您不喜欢proc import
正在执行的操作,可以通过proc数据集
手动重命名它们
proc datasets;
modify <dataset>;
rename var1=name var2=abc1 var3=abc2 var4=def1 var5=def2;
quit;
proc数据集;
修改
重命名var1=name var2=abc1 var3=abc2 var4=def1 var5=def2;
退出
你可以用几种不同的方法来做。执行示例的最简单方法如下所示:
data want;
infile datalines dlm=',';
input name $ abc1-abc2 def1-def2;
datalines;
John,1,2,3,4
Jack,4,5,6,7
;;;;
run;
proc print data=want;
run;
很明显,1-2可以变成1-35或者其他什么
如果您的数据比这更复杂,使用交错变量,我建议只读取标题行,转置它,然后从中构造输入语句
data varnames; *this dataset reads the header in only - use infile with obs option for actual csv;
input varname $ @@;
order+1; *so we can get back to proper order;
datalines;
Name abc abc def def
;;;;
run;
proc sort data=varnames; *sort by varname;
by varname;
run;
data input_statement;
set varnames;
by varname;
if first.varname then counter=0;
if not (first.varname and last.varname) then do; *if this is not the only varname with same varname;
counter+1; *increment counter;
varname=cats(varname,counter); *append counter to varname;
end;
run;
proc sort data=input_statement; *back to correct order;
by order;
run;
proc sql; *select the new names into a macro variable;
select varname into :namelist separated by ' ' from input_statement;
quit;
data want; *input them;
infile datalines dlm=',';
input (&namelist) ($); *here I just make them all CHAR. If you have all NUM except the name var,
you could leave name out of your datasets and include it separately.;
datalines;
John,1,2,3,4
Jack,4,5,6,7
;;;;
run;
你可以用几种不同的方法。执行示例的最简单方法如下所示:
data want;
infile datalines dlm=',';
input name $ abc1-abc2 def1-def2;
datalines;
John,1,2,3,4
Jack,4,5,6,7
;;;;
run;
proc print data=want;
run;
很明显,1-2可以变成1-35或者其他什么
如果您的数据比这更复杂,使用交错变量,我建议只读取标题行,转置它,然后从中构造输入语句
data varnames; *this dataset reads the header in only - use infile with obs option for actual csv;
input varname $ @@;
order+1; *so we can get back to proper order;
datalines;
Name abc abc def def
;;;;
run;
proc sort data=varnames; *sort by varname;
by varname;
run;
data input_statement;
set varnames;
by varname;
if first.varname then counter=0;
if not (first.varname and last.varname) then do; *if this is not the only varname with same varname;
counter+1; *increment counter;
varname=cats(varname,counter); *append counter to varname;
end;
run;
proc sort data=input_statement; *back to correct order;
by order;
run;
proc sql; *select the new names into a macro variable;
select varname into :namelist separated by ' ' from input_statement;
quit;
data want; *input them;
infile datalines dlm=',';
input (&namelist) ($); *here I just make them all CHAR. If you have all NUM except the name var,
you could leave name out of your datasets and include it separately.;
datalines;
John,1,2,3,4
Jack,4,5,6,7
;;;;
run;
当我尝试使用导入向导导入时,运行了与您发布的代码相同的代码,并且它自动重命名了列当我尝试使用导入向导导入时,运行了与您发布的代码相同的代码,并且它自动重命名了列。如果列数过多,然后如何手动重命名它们?是否有任何方法可以让SA为名称为abc的列的重复项添加数字后缀,如abc abc1 abc 2?如果列数过多,然后我如何手动重命名它们?是否有任何方法可以让SA向重复项添加数字后缀,例如abc C1 abc 2,用于名为abc的列?