I just tried and successfully installed MongoDB Tutorial to Ubuntu22.04 system. Please find my short tutorial below. Source 1 Use the following link to go to a great tutorial from end to end (in between there is a short fix that needs another resource later) REMEMBER to include 'sudo' command when necessary https://wiki.crowncloud.net/How_To_Install_Duf_On_Ubuntu_22_04?How_to_Install_Latest_MongoDB_on_Ubuntu_22_04 Source 2 Code [...]
In professional environment, there are a lot of tasks that either require a Excel file as source, or one as a delivery, and most of time we ourselves have minimized the workload to an extent that it has become a daily boring task. What if I tell you there is a way to potentially [...]
MySQL 'group by' together with 'partition by' Online MySQL Database create table Test(cc varchar(25), item varchar(100), num integer); insert into Test(cc, item, num) values('ca', '8.1.4', 11); insert into Test(cc, item, num) values('cn', '8.1.1', 1); insert into Test(cc, item, num) values('cn', '8.1.4', 15); insert into Test(cc, item, num) values('cn', '8.1.3', 5); insert into Test(cc, item, [...]
Hi all, I just bought a new VPS from Vultr.com, and I’d like to share my experience with you!
#Multiplot in ggplot2 install.packages("gridExtra") library("gridExtra") install.packages("cowplot") library("cowplot") df <- ToothGrowth # Convert the variable dose from a numeric to a factor variable df$dose <- as.factor(df$dose) head(df) #----Cowplot---- # The cowplot package is an extension to ggplot2 #and it can be used to provide a publication-ready plots. library(cowplot) # Default plot bp <- ggplot(df, aes(x=dose, y=len, color=dose)) [...]
I believe most of you are quite familiar using R markdown to write either your analysis report or work sample, some of which requires a lot of formula and table writing. So here is what I find to be useful to do these jobs. Write math matrix \mathbf{X} = \left[\begin{array} {rrr} 1 & 2 & 3 [...]
Just received a Python coding challenge and I believe it would be useful to share.
Simon received the board game Ticket to Ride as a birthday present. After playing it with his friends, he decides to come up with a strategy for the game.
Here is a complete version of Python2.7 code regarding the problematic original version. Just paste in in any .py file and run.
个人认为可变对象和深浅拷贝是未来编程首要注意的事情，毕竟如果是这个上面出现bug应该比较难察觉。