Programmer Think

The following is the sharing of last year's internsauthor: "ylchen" ggplot2 is the most popular third-party extension package for R language. It is the work of Hadley Wickham, chief scientist of RStudio, during his doctoral study. According to its drawing concept, the drawing is composed of the following modules:In short:A statistical graph is ...

hi, bean skin powder, meet you again today. This issue shares the advanced use of TypeScript brought by bytedancer "little blacksmith in Milan",It is applicable to students who have known TypeScript or have actually used it for a period of time,This article systematically introduces the function points of common TypeScript from the pe ...

The following is the sharing of last year's internsauthor: "ylchen"1, ForewordPCA(Principal Components Analysis), namely principal component analysis, also known as principal component analysis or principal component regression analysis, is an unsupervised data dimensionality reduction method. Firstly, the data is transformed into a new coordin ...

ArrayList overview(1) ArrayList is a variable length collection class, which is implemented based on fixed length array.(2) ArrayList allows null values and duplicate elements. When the number of elements added to ArrayList is greater than the capacity of its underlying array, it will regenerate a larger array through the capacity expansion mec ...

Recently, when arranging apprentice single-cell sharing, an apprentice mentioned GSE168522, which is a very standard six 10x single-cell transcriptome samples, as shown below:GSM5145401 Sample 16_Normal-1 GSM5145402 Sample 17_Normal-2 GSM5145403 Sample 23_Early AD-1 GSM5145404 Sample 28_Early AD-2 GSM5145405 Sample 24_Late AD-1 GSM5145406 Sampl ...

1. Zabbix introduction Zabbix is an enterprise class open source solution that provides distributed system monitoring and network monitoring functions based on WEB interface. Zabbix can monitor various network parameters to ensure the safe operation of the server system; And provide flexible notification mechanism to enable system administrat ...

usage matplotlib.pyplot.scatter(x, y, s=None, c=None, marker=None, cmap=None, norm=None, vmin=None, vmax=None, alpha=None, linewidths=None, *, edgecolors=None, plotnonfinite=False, data=None, **kwargs) Parameter introduction x,yData for plotting scatter plotsfloat or array-like, shape(n,)sA real number or an array with the size of (n,), an ...

catalogue preface 1, API s and components used 2, Page description         1. Page display         2. Install vant UI         3. Import aggregate data 3, Code snippet          3.1 App.vue 3.2 router/index.js 3.3 axiosServer/config ...

Most enterprises deploy projects based on Linux servers, and Redis official does not provide the installation package of Windows version. Therefore, in the course, we will install Redis.com based on Linux system The Linux version selected here is CentOS 7 Redis's official website address: https://redis.io/ 1. Install Redis on a single ma ...

Because I haven't played the shortest board for a long time, I almost forgot the two algorithms... floyd is too simple, so I remember QAQ No, let's play the board first. You can practice with two questions: Weakened version: [template] single source shortest path (weakened version) - Luogu Enhanced version: [template] single source shortest ...