Stata软件no room。。我该怎么compress我的data

是 否 +2 论坛币

k人 参与回答

经管之家送您一份

应届毕业生专属福利!

求职就业群

赵安豆老师微信：zhaoandou666

经管之家联合CDA

送您一个全额奖学金名额~ !

立即领取

感谢您参与论坛问题回答

经管之家送您两个论坛币！

+2 论坛币

有人遇到过stata说no room to add more variables because of width
    An attempt was made to add a variable that would have increased the memory required to store an observation beyond
    what is currently possible.  You have the following alternatives:
     1.  Store existing variables more efficiently; see help compress.
     2.  Drop some variables or observations; see help drop.  (Think of Stata's data area as the area of a rectangle;
         Stata can trade off width and length.)
     3.  Increase the amount of memory allocated to the data area using the set memory command; see help memory.
r(902);
不是太明白，应该怎么把data变小呢？ 我的文件并不大，只有3.71MB，照道理不应该这样子的。。郁闷了。。。

扫码加我 拉你入群

请注明：姓名-公司-职位

以便审核进群资格，未注明则拒绝

分享0 收藏3 回帖

关键词：compress stata软件 Stata Press Data currently following existing required because

set mem 200m,perm

set mat 800,perm

太神了～～～谢谢～～～

用了set mem 200m,perm
有了 * Replace 'X' with the name of the dictionary file.
. *
. * The contents of the dictionary are given at the end of this file.
. * Put the dictionary into a separate file (by editing this file).
. * Then specify here the name of the dictionary file.
. *******************************************************************
. * The md, min and max specifications were translated
. * into the following "REPLACE...IF" statements:
.
. replace tenurp = . if (tenurp == 9)
(1480 real changes made, 1480 to missing)

. replace prescp = . if (prescp == 9)
(159805 real changes made, 159805 to missing)

. replace immpopp = . if (immpopp == 8)
(132 real changes made, 132 to missing)

. replace yrimmiga = . if (yrimmiga == 98 | yrimmiga == 99)
(379061 real changes made, 379061 to missing)

. replace immiagep = . if (immiagep == 98 | immiagep == 99)
(377040 real changes made, 377040 to missing)

. replace visminp = . if (visminp == 8)
(132 real changes made, 132 to missing)

. replace olnp = . if (olnp == 8)
(132 real changes made, 132 to missing)

. replace dgmfsp = . if (dgmfsp == 99)
(88162 real changes made, 88162 to missing)

. replace totschp = . if (totschp == 99)
(88162 real changes made, 88162 to missing)

. replace wagesp = . if (wagesp == 9999999)
(88162 real changes made, 88162 to missing)

然后发现可以了用reg了，hoho，但是上面一长串是什么意思哦？对我的数据有影响么？

还有个有用的命令: compress

thanks indeed

set matsize 800

赞美，很有用处