Python Articles - Page 703 of 1048

Check if frequency of characters are in Recaman Series in Python

Arnab Chakraborty
Updated on 18-Jan-2021 12:36:06

138 Views

Suppose we have a lowercase string s. We have to check whether the occurrences of alphabets in s, after rearranging in any possible manner, generates the Recaman’s Sequence (ignoring the first term).The Recaman’s sequence is as follows −$$a_{n}=\begin{cases}\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:0(if\:n=0) & \a_{n-1}-n(if\:a_{n}-n>0\wedge not\:present\in sequence) & \\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:a_{n-1}+n(otherwise)\end{cases}$$Some of the items of Recaman's Sequence are [0, 1, 3, 6, 2, 7, 13, 20, 12, 21, 11, 22, 10, 23, 9, 24, ...] (The first term is ignored as this is 0)So, if the input is like s = "pppuvuuqquuu", then the output will be True as the characters and frequencies are (p, 3), (u, ... Read More

Check if frequency of character in one string is a factor or multiple of frequency of same character in other string in Python

Arnab Chakraborty
Updated on 18-Jan-2021 12:33:36

270 Views

Suppose we have two strings s and t, we have to check whether the occurrences of a character in s is multiple or a factor in t.So, if the input is like s = "xxyzzw" t = "yyyxxxxzz", then the output will be True as frequency of x in s is 2, and in t is 4, in s y is present only once, but in t there are three y's, there are same number of z in s and t and there is one w in s but not in t.To solve this, we will follow these steps −s_freq ... Read More

Check if frequency of all characters can become same by one removal in Python

Arnab Chakraborty
Updated on 18-Jan-2021 12:31:45

613 Views

Suppose we have a lowercase string s. We have to check whether the frequency of all characters are same after deleting one character or not.So, if the input is like s = "abbc", then the output will be True as we can delete one b to get string "abc" where frequency of each element is 1.To solve this, we will follow these steps −occurrence := a map with all characters of s and their frequenciesif occurrences of all characters in s are same, thenreturn Truefor each char in s, dooccurrence[char] := occurrence[char] - 1if occurrences of all characters in s ... Read More

How can Bokeh be used to generate scatter plot using Python?

AmitDiwan
Updated on 18-Jan-2021 12:30:23

283 Views

Bokeh is a Python package that helps in data visualization. It is an open source project. Bokeh renders its plot using HTML and JavaScript. This indicates that it is useful while working with web-based dashboards. Bokeh converts the data source into a JSON file. This file is used as an input to BokehJS, which is a JavaScript library. This BokehJS is written in TypeScript that helps render visualization on modern browsers.Matplotlib and Seaborn produce static plots, whereas Bokeh produces interactive plots. This means when the user interacts with these plots, they change accordingly.Plots can be embedded as output of Flask ... Read More

How can Bokeh be used to generate patch plot in Python?

AmitDiwan
Updated on 18-Jan-2021 12:28:11

237 Views

Bokeh is a Python package that helps in data visualization. It is an open source project. Bokeh renders its plot using HTML and JavaScript. This indicates that it is useful while working with web-based dashboards.Matplotlib and Seaborn produce static plots, whereas Bokeh produces interactive plots. This means when the user interacts with these plots, they change accordingly.Plots can be embedded as output of Flask or Django enabled web applications. Jupyter notebook can also be used to render these plots.Dependencies of Bokeh −Numpy Pillow Jinja2 Packaging Pyyaml Six Tornado Python−dateutilInstallation of Bokeh on Windows command promptpip3 install bokeh Installation of Bokeh ... Read More

How can a vertical bar graph be visualized using Bokeh and Python?

AmitDiwan
Updated on 18-Jan-2021 12:27:20

177 Views

Bokeh is a Python package that helps in data visualization. It is an open source project. Bokeh renders its plot using HTML and JavaScript. This indicates that it is useful while working with web−based dashboards.Bokeh can be easily used in conjunction with NumPy, Pandas, and other Python packages. It can be used to produce interactive plots, dashboards, and so on.Bokeh converts the data source into a JSON file. This file is used as an input to BokehJS, which is a JavaScript library. This BokehJS is written in TypeScript that helps render visualization on modern browsers.Matplotlib and Seaborn produce static plots, ... Read More

How can Bokeh library be used to plot horizontal bar plots using Python?

AmitDiwan
Updated on 18-Jan-2021 12:25:34

435 Views

Bokeh is a Python package that helps in data visualization. It is an open source project. Bokeh renders its plot using HTML and JavaScript. This indicates that it is useful while working with web-based dashboards.Visualizing data is an important steps since it helps understand what is going on in the data without actually looking at the numbers and performing complicated computations.Bokeh can be easily used in conjunction with NumPy, Pandas, and other Python packages. It can be used to produce interactive plots, dashboards, and so on.It helps in communicating the quantitative insights to the audience effectively.Bokeh converts the data source ... Read More

How can Bokeh library be used to generate line graphs in Python?

AmitDiwan
Updated on 18-Jan-2021 12:24:45

182 Views

Bokeh is a Python package that helps in data visualization. It is an open source project. Bokeh renders its plot using HTML and JavaScript. This indicates that it is useful while working with web−based dashboards.Visualizing data is an important steps since it helps understand what is going on in the data without actually looking at the numbers and performing complicated computations.Bokeh can be easily used in conjunction with NumPy, Pandas, and other Python packages. It can be used to produce interactive plots, dashboards, and so on. It helps in communicating the quantitative insights to the audience effectively.Bokeh converts the data ... Read More

Check If every group of a is followed by a group of b of same length in Python

Arnab Chakraborty
Updated on 18-Jan-2021 12:27:59

140 Views

Suppose we have a lowercase string s with only two characters a and b. We have to check whether every group of consecutive a's is followed by group of consecutive b's of equal length.So, if the input is like s = "abaaabbbaabbaabbab", then the output will be True, as all groups are (ab), (aaabbb), (aabb), (aabb), (ab).To solve this, we will follow these steps −a_count := 0, string_len := size of si := 0while i < string_len, dowhile i < string_len and s[i] is 'a', doa_count := a_count + 1i := i + 1while i < string_len and s[i] is ... Read More

Check if elements of Linked List are present in pair in Python

Arnab Chakraborty
Updated on 18-Jan-2021 12:25:44

323 Views

Suppose we have a singly linked list. We have to check whether each element in the given linked list is present in a pair, in other words all elements occur even no. of times.So, if the input is like list = [2, 5, 5, 2, 3, 3], then the output will be True.To solve this, we will follow these steps −xor_res := 0, current_node := head of linked listwhile current_node is not null, doxor_res := xor_res XOR value of current_nodecurrent_node := next of current_nodereturn False when xor_res is non-zero otherwise TrueExampleLet us see the following implementation to get better understanding ... Read More

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