Stata mp maxvar
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In fact, if you did succeed in getting this data set into wide layout, probably your next post here would be some dilemma on how to do something, and the first step in the solution would be to -reshape- it back to long.*! version 3.0.
#Stata mp maxvar download
I am using ODK briefcase v 1.12.2 to download the data from odk server and using STATA 14.1 to merge. Thus, the maximum line length may be set up to. Dear ODK Fourm, I was using the packege odkmeta for merging ODK datasets. Each unit increase in set maxvar increases the length maximums by 129.The maximum value of set maxvar is 32,767. The maximum line length is defined as 16 more than the maximum macro length, which is currently 645,200 characters. I can pretty much guarantee you that whatever you are planning to do with this data will be much better done if you leave it long. What follows is relevant only if you are using Stata/SE or Stata/MP. There are a few exceptions, but none of them that I am aware of would be applicable to a data set with this many variables: they are typically commands that use a pair of variables, or a small number of pairs of variables. Most Stata commands are designed to work with data in long layout. You're actually lucky that Stata didn't waste your time cranking out this data set (which would have taken it hours if not days to do) only to leave you with a useless mess.
#Stata mp maxvar free
It is really inconceivable to me that were you to successfully reshape this data set wide that you would be able to do anything useful with it. Stata Exe Free Download 32-bit Stata Download Windows Stata Download Free Stata/MP lets you analyze data in one-half to two-thirds the time compared with Stata/SE on inexpensive dual-core laptops and in one-quarter to one-half the time on quad-core desktops and laptops. The best solution to this problem is not to do it in the first place. I have the same problem on Stata MP running on a. You can set the maxvar for your session or in your do file with (for example to 6000) run stata batch. When I run set maxvar 32000, Stata errors: no dataset in memory has changed since last saved I save the dataset. For information use the help setmaxvar command at the dot prompt. But a list of 14,000 variable names, which on average will be, say 15 characters long, with some spaces separating them is just exceeding the amount of storage Stata can give to those macros and characteristics. Even if you load the MP or SE versions, Stata limits the number of variables to 5000 unless you tell it otherwise. Stata needs to build a list of those variable names when it does -reshape- and it initially stores that in a local macro, and subsequently, in a data set characteristic. Multiply that by 14 variables and you need to create ~14,000 new variables. Which means you have probably 1,000 or so values of _result_date. Now, I don't know how many values _result_date has, but if your total data set has 20,000,000 observations ( we don't say "rows" in Stata-that's spreadsheet language), and assuming the entities denoted by patient_guid are human patients, it is likely that the number of patients is, at most, several tens of thousands. If your command were just -reshape wide a b c, i(patient_guid) j(_result_date)- and if result_date just had 4 values, then the resulting wide data set would need to hold 3x4 = 12 variables (plus patient_guid and any other variables not mentioned in the command). It's the combination of the number of variables and the number of distinct values of _result_date that is breaking the code, specifically their product. the 14 variables: _proc_code _proc_eye _slt_eye _age istent hydrus istent_add goniotomy trabectome concur_phaco ab_int_canal other_glau_proc_code other_glau_proc_date other_glau_proc_eye)?Īny help would be so appreciated thanks for your time.
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Or whether the number of variables I want to include under each "_proc_date" is the problem (i.e. 54 U 6 Managing memory You reset maxvar using the set maxvar command, set maxvar. R(920) The data set is large (~20 million rows) so I'm not sure whether that is part of the problem? 50 5.3 Size limits of Stata/MP, SE, IC, and Small Stata. Maximum line length may be set up to 4,227,159 characters if you set maxvar to its The maximum value of set maxvar is 32,767. Each unit increase in set maxvar increases the The maximum line length is defined as 16 more than the maximum macro length, which You can change that in Stata/SE and Stata/MP. Maximum allowed length is 264,408 characters, which is calculated on the basis of
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The line resulting from substituting macros would be longer than allowed. Code: macro substitution results in line that is too long