var_assign1 valid Variable can use in number,underscore var_assign% Invalid Can’t use ‘%’. dot(.) and underscore allowed. 2var_assign invalid Variable can’t start with number .var_assign , var.assign valid Can start with a dot(.) and the dot(.) with join. .2var_assign invalid Variable started with dot & number _var_assign invalid Variable starts with _ which is not valid
R not like other programming languages like C and java,the variables are not declared as some data type. R basically object base.There are many types of R-objects. The frequently used ones are − Vectors Lists Matrices Arrays Factors Data Frames These objects is the vector object and there are six data types of these atomic
# My first program in R Programming > strVar <- “Hello, World!” > print ( strVar)  “Hello, World!” Comments #This is R comments
This warning message mean that, The current RStudio version is 1.0.143. Download and install the newest version. > RStudio.Version()$version  ‘0.99.896’ Please update your version.
There can be multiple rows inserted with the same value in tables core_store, core_website and core_store_group. You have to delete such duplicate rows from core_store, core_website and core_store_group table. That is, if you have three rows with same value then remove the two duplicate rows. Refresh Cache from System -> Cache Management.
It’s very simple, just modify python install. just follow image.
it’s a memory issue on server side. you should check your php max memory limit on your hosting. ask your hosting provider to increase it if you can’t do it manually yourself
For debian based system cat /etc/*_version or for a Red Hat based system cat /etc/*-release