To create a new variable or to transform an old variable into a new one, usually, is a simple task in R. The common function to use isnewvariable <- oldvariable. Variables are always added horizontally in a data frame. Usually the operator*for multiplying,+for addition,-for subtraction, ...
R Shiny Google Analytics: How to Add GA to Shiny Apps Offload Shiny’s Workload: COVID-19 processing for the WHO/Europe Bind together two data frames by their rows or columns in R Create new variables from existing variables in R Learning from Failure – Nitinol Fracture Mechanics in...
r 1,mysql日志(配置文件一般在 /etc/my.cnf) 错误日志log_error:可以查看my.cnf中的配置,或者登陆数据库,show global variables like '%log%'; 查看log_error 慢日志slow_log:记录执行时间超过阈值的记录(mysqldumpslow 使用这个查看) 二进制日志log_bin:可以用来恢复数据,max_binl......
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RCode permits such label names, but it is poor coding style, and can create difficult to debug problems (when you get them mixed up). -VARS Flag as errors variables which differ only by case. ie: Trying to use variable names 'AAA', 'Aaa', 'aaa' all at once would be considered an...
> problem is, for some variables, 9 or 99 might be the real values. I > waswondering if there is any good way to deal with this kind of > recoding. > (Inthe past we have a discussion thread of using the value label > information such as "not answered" to deal with this ...
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for some variables, 9 or 99 might be the real values. I was wondering if there is any good way to deal with this kind of recoding. (In the past we have a discussion thread of using the value label information such as "not answered" to deal with this question. What I am asking her...
Spss_For_Newbies_How_To_Create_A_Set_Of_Dummy_Variables_For_Regression Spss_For_Newbies_How_Not_To_Interpret_A_Dummy_Variable_In_Standard_Regression Spss_For_Newbies_Opening_An_Excel_File_In_Spss_Automatic_Recode_Button Spss_For_Newbies_Why_Having_A_High_R_Squared_In_Regression_Could_Be_A_...
If all i see is 9 or 99 or 999, then the value must be a missing. It may be that we know that the range is such that these may be real and the missing must be 999 (or etc.). ___ From: owner-statalist@hsphsun2.harvard.edu [owner-statalist@hsphsun2.harvard.edu] On Behalf...