Data Science Question A Day

This is an accompanying repository for the questions posted on Twitter by the account, Data Science Question a Day. You can follow the twitter account @data_question for daily questions on Data Science, Machine Learning, R programming and Python (possibly in future).

If in case, you find a correction in any of the questions, please do submit an issue request. If you would like to submit a question, please do submit an issue request.

Although this repository contains questions, the purpose of it is to act as a temporary placeholder for storing questions. Future plan is to migrate questions to more robust database and make the questions accessible via a website.

Question List

S.No	Date	Topic	Link
1	04 February 2021	Programming, R	Link
2	22 January 2021	Data Science, Analytics	Link
3	21 January 2021	Programming, R, is.na()	Link
4	20 January 2021	Programming, R, Sequence	Link
5	19 January 2021	Programming, R	Link
6	14 January 2021	Data Science, Heteroscedasticity	Link
7	13 January 2021	Programming, Python	Link
8	12 January 2021	Programming, R, Pipe operator (magrittr package)	Link
9	11 January 2021	Data Science, Logistic Regression	Link
10	13 December 2020	Programming, Python, Objects	Link
11	12 December 2020	Programming, Python, Closure	Link
12	09 December 2020	Programming, R, NROW	Link
13	08 December 2020	Programming, R, GGplot	Link
14	07 December 2020	Programming, R, GGPlot	Link
15	06 December 2020	Programming, Python, Scope	Link
16	05 December 2020	Programming, Python, Scope	Link
17	04 December 2020	Data Science, Linear Algebra	Link
18	03 December 2020	Data Science, Linear Algebra	Link
19	02 December 2020	Programming, R, GGPlot	Link
20	01 December 2020	Programming, R, GGplot	Link
21	30 November 2020	Programming, R, GGPlot	Link
22	29 November 2020	Programming, Python, Functions	Link
23	28 November 2020	Programming, Python, Arbitary Arguments	Link
24	27 November 2020	Data Science, Linear Algebra	Link
25	26 November 2020	Data Science, Linear Algebra	Link
26	25 November 2020	Programming, R, Functions	Link
27	24 November 2020	Programming, R, Functions	Link
28	23 November 2020	Programming, R, sample()	Link
29	22 November 2020	Programming, Python, Arbitary Arguments	Link
30	21 November 2020	Programming, Python, Docstring	Link
31	20 November 2020	Data Science, ROC curve	Link
32	19 November 2020	Data Science, Conditional Probability	Link
33	15 November 2020	Programming, Python, Global Variables	Link
34	14 November 2020	Programming, Python	Link
35	13 November 2020	Data Science, Recall	Link
36	12 November 2020	Data Science, Recall	Link
37	11 November 2020	Programming, R, ggplot()	Link
38	10 November 2020	Programming, R, ggplot	Link
39	09 November 2020	Programming, R, as.character()	Link
40	08 November 2020	Programming, Python, Loops	Link
41	07 November 2020	Programming, Python, Logical	Link
42	06 November 2020	Programming, Python, Control Statement	Link
43	05 November 2020	Programming, R, Factor	Link
44	04 November 2020	Programming, R, Factors	Link
45	03 November 2020	Programming, R, require()	Link
46	02 November 2020	Programming, R, `	`
47	29 October 2020	Programming, R, double	Link
48	28 October 2020	Programming, R, &	Link
49	27 October 2020	Programming, R, NA	Link
50	26 October 2020	Programming, R, NULL	Link
51	25 October 2020	Programming, Python, Strings	Link
52	24 October 2020	Programming, Python, Data Types	Link
53	23 October 2020	Data Science, Linear Regression	Link
54	22 October 2020	Programming, R, Linear Regression	Link
55	21 October 2020	Programming, R, Anova and Linear Regression	Link
56	20 October 2020	Programming, R, ifelse	Link
57	19 October 2020	Programming, R, NA	Link
58	18 October 2020	Programming, Python, Operators	Link
59	17 October 2020	Programming, Python, String	Link
60	16 October 2020	Data Science, Probability and Statistics, Bootstrap	Link
61	14 October 2020	Programming, R, Indexing	Link
62	13 October 2020	Programming, R, List	Link
63	12 October 2020	Programming, R, Length	Link
64	11 October 2020	Programming, Python, Strings	Link
65	10 October 2020	Programming, Python, Strings	Link
66	09 October 2020	Programming, R, Assignment	Link
67	08 October 2020	Programming, R, subset()	Link
68	07 October 2020	Programming, R, Booleans	Link
69	06 October 2020	Programming, R, Operator Precedence	Link
70	05 October 2020	Programming, R, eval() and parse()	Link
71	04 October 2020	Programming, R, is.vector()	Link
72	03 October 2020	Programming, R, c()	Link
73	02 October 2020	Programming, R, c()	Link
74	01 October 2020	Programming, R, Assignment Operator	Link
75	30 September 2020	Programming, R, Vectors	Link
76	29 September 2020	Programming, R, Variables	Link
77	28 September 2020	Programming, R, functions	Link
78	27 September 2020	Programming, R, Scoping	Link
79	26 September 2020	Data Science, Probability and Statistics, Power	Link
80	25 September 2020	Data Science, Probability and Statistics, Power	Link
81	24 September 2020	Programming, R, Subsetting	Link
82	23 September 2020	Data Science, Probability and Statistics, Uniform Distribution	Link
83	22 September 2020	Programming, R, Variable Scoping	Link
84	21 September 2020	Programming, R, Environments	Link
85	20 September 2020	Data Science, Probability and Statistics, Bootstrap	Link
86	19 September 2020	Programming, R, Super Assignment Operator	Link
87	18 September 2020	Data Science, Probability and Statistics, Binomial Distribution	Link
88	17 September 2020	Data Science, Probability and Statistics, Binomial Distribution	Link
89	16 September 2020	Data Science, Probability and Statistics, Binomial Distribution	Link
90	15 September 2020	Data Science, Probability and Statistics, Chi-squared Distribution	Link
91	14 September 2020	Data Science, Probability and Statistics, Binomial Test	Link
92	13 September 2020	Data Science, Probability and Statistics, Binomial Distribution	Link
93	12 September 2020	Programming, R, seq_along()	Link
94	11 September 2020	Programming, R, List	Link
95	10 September 2020	Data Science, Probability and Statistics, Normal Q-Q plot	Link
96	09 September 2020	Programming, R, S3 Class	Link
97	08 September 2020	Programming, R, Indexing	Link
98	07 September 2020	Programming, R, Indexing	Link
99	06 September 2020	Data Science, Probability and Statistics, Type 1 error and Type 2 error	Link
100	05 September 2020	Data Science, Probability and Statistics, Type 1 error and Type 2 error	Link
101	04 September 2020	Data Science, Probability and Statistics, Type 1 error and Type 2 error	Link
102	03 September 2020	Programming, R, Indexing	Link
103	02 September 2020	Data Science, Probability and Statistics, Type 1 error and Type 2 error	Link
104	01 September 2020	Data Science, Probability and Statistics, Type I error and Type II error	Link
105	31 August 2020	Programming, R, Indexing	Link
106	30 August 2020	Data Science, Statstics, Type 1 and Type 2 Error	Link
107	29 August 2020	Data Science, Classification	Link
108	28 August 2020	R programming, [ operator	Link
109	27 August 2020	R programming, : operator	Link
110	26 August 2020	ANOVA, One way ANOVA, Two way ANOVA	Link
111	25 August 2020	R Programming, Operator precedence	Link
112	24 August 2020	F Distribution	Link
113	23 August 2020	ANOVA, Hypothesis Testing	Link
114	22 August 2020	ANOVA,	Link
115	21 August 2020	Normal Distribution	Link
116	20 August 2020	One-way ANOVA	Link
117	19 August 2020	R Programming, ... operator	Link
118	18 August 2020	Probability, Normal Distributions,	Link
119	17 August 2020	R programming, all.equal() Function	Link
120	16 August 2020	Linear Regression	Link
121	15 August 2020	R programming	Link
122	14 August 2020	Spearman coefficient	Link
123	13 August 2020	R programming, Logical vectors	Link
124	12 August 2020	F-Statistic test	Link
125	11 August 2020	Pearson correlation coefficient	Link
126	10 August 2020	Pearson Correlation Coefficient, R square	Link
127	09 August 2020	Ordinary Least Squares Fitting	Link
128	08 August 2020	R square and Adjusted R square	Link
129	07 August 2020	Linear Regression in R	Link
130	06 August 2020	Linear Regression	Link
131	05 August 2020	Linear Regression, R, Interaction Effect	Link
132	03 August 2020	Object Types: R	Link
133	31 July 2020	Welch's t-test	Link