average

Trouble averaging specific rows in Pandas DataFrame

一笑奈何 提交于 2019-12-12 01:23:56
问题 I currently have the following two DataFrames: raw_data= Time F1 F2 F3 2082-05-03 00:00:59.961599999 -83.769997 29.430000 29.400000 2082-05-03 00:02:00.009600000 -84.209999 28.940001 28.870001 2082-05-03 00:02:59.971200000 -84.339996 28.280001 28.320000 outage_by_timeofday_num = (made from raw_data) (ignore dashes - they are for alignment only) F1 F2 F3 Time 2082-05-03 00:00:00 0 1 1 2082-05-03 01:00:00 0 1 1 I've been able to sort and average the raw_data DataFrame by times of the day using

Java, averaging a list of numbers

≡放荡痞女 提交于 2019-12-12 00:50:43
问题 In the following Java code, my average temperature is 1 decimal place off. For example Instead of being 69.0 it's 6.9 . The input can be any 10 numbers. So lets say I input 10 temperatures and each 1 is 10 degrees. The total for the 10 inputs is 100, so the average should be 10 but instead I'm receiving an average of 1.0. Code: import java.util.Scanner; public class NumberAboveAverage { public static void main(String[] args) { Scanner input = new Scanner(System.in); final int TotalTemps = 10;

Separating data into bins and calculating averages

三世轮回 提交于 2019-12-12 00:22:22
问题 I have this sample data Time(s) Bacteria count 0.4 2 0.82 5 6.67 8 7.55 11 8.21 14 8.89 17 9.4 20 10.18 23 10.85 26 11.35 29 11.85 32 12.41 35 13.36 38 13.86 41 14.57 44 15.08 47 15.67 50 16.09 53 16.59 56 18.53 59 24.43 62 25.32 65 25.97 68 26.37 71 26.93 74 27.87 77 28.33 80 29.1 83 29.88 84 30.88 85 31.99 86 35.65 87 36.06 88 36.46 89 36.96 90 37.39 91 37.95 92 38.56 93 39.22 94 39.79 95 40.56 96 41.47 97 42.02 98 42.73 99 43.4 100 43.93 101 44.67 102 45.24 103 45.9 104 46.58 105 47.22 106

Trying to find the average of multiple values in a dictionary

只愿长相守 提交于 2019-12-11 23:54:47
问题 New to python here. Trying to get find the average of totaled up keys in a dictionary. I've managed to grab the total of all values for each key, but I'm not certain how to find the average of these new values. import os f = open("iris.data", "r") count = 0 d = {} # You want the dictionary to have d = {Iris-setosa: list of values] # Populate dictionary # Code would work regardless of file # Reference movie names file for line in f: if line.isspace(): continue #If a particular line is made of

How to plot a probability density function on a histogram?

百般思念 提交于 2019-12-11 23:05:13
问题 My function called DicePlot, simulates rolling 10 dice 5000 times. In the function, it calculates the sum of values of the 10 dice of each roll, which will be a 1 × 5000 vector, and plot relative frequency histogram with edges of bins being selected in the same manner where each bin in the histogram should represent a possible value of for the sum of the dice. The mean and standard deviation are computed of the 1 × 5000 sums of dice values and the probability density function of normal

Mysql JOIN two tables based on async time and average values

落爺英雄遲暮 提交于 2019-12-11 20:46:10
问题 I recorded values from temperature and humidity sensors, like that : mysql> SELECT date,valeur FROM temperature WHERE date >= NOW() - INTERVAL 2 HOUR; +---------------------+--------+ | date | valeur | +---------------------+--------+ | 2013-09-26 11:30:40 | 25.2 | | 2013-09-26 11:33:19 | 25.4 | | 2013-09-26 11:34:12 | 25.5 | | 2013-09-26 11:38:37 | 25.4 | | 2013-09-26 11:39:30 | 25.4 | | 2013-09-26 11:40:23 | 25.4 | | 2013-09-26 11:43:02 | 25.4 | | 2013-09-26 11:45:41 | 25.3 | | 2013-09-26

Awk: substituting each n lines with their average, for each column

大城市里の小女人 提交于 2019-12-11 19:43:54
问题 How can I substitute each n lines of a file with their average using awk? This question answer perfectly, except for the fact that it handles only one column and the 3 is not parametrized: How to sum up every 10 lines and calculate average using AWK? basically I would like to take a file like this 1 1 2 1 3 1 4 1 5 1 6 1 2.5 2.0 3.5 2.0 4 2.0 and obtain something like this: 2 1 5 1 3.33 2.0 回答1: Here's a complete shell script: awk -v count=3 ' { if ( NF > tot_col ) tot_col = NF; cur = 1;

Not sure why this is not working

我只是一个虾纸丫 提交于 2019-12-11 19:35:18
问题 This is a program i'm stuck on for school. Can't figure out why it won't give me a average and a greatest. The program runs 50 times like i want it to but does not add a value to moves and total. import java.util.*; public class RandomWalk { public static void main(String[] args) { // TODO Auto-generated method stub Random rand = new Random(); int location; double average; int greatest=0; int moves = 0; int total = 0; int step; for (int i = 0; i < 50; i++) { location = 4; step = rand.nextInt(

R programming fixing error

99封情书 提交于 2019-12-11 19:05:23
问题 Hi guys I asked a similar question about this here previously and I got some really awesome answers. But it turns out I have more data I need to work with sadly. So I have sample data in this format which is generated using head(data). So I have 3 specimens with their own Time and speed data....I'm not exactly using speed for my actual data Time Speed Time.1 Speed.1 Time.2 Speed.2 Error in unique.default(x) : unique() applies only to vectors Would it be possible for you guys to tell me what

Extracting and Averaging instintanous values in temporal DB in postgresql

前提是你 提交于 2019-12-11 18:45:21
问题 I have a temporal database and I wanted to average the data with respect to the: ` HH = (HH-1):41 - HH:40 For example: 13 = observation period 12:41 to 13:40. Expected results: The code should subtract the instantaneous value of HH:40 from (HH-1):41. Sample data: temperature date-time 1 -1.64 2007-09-29 00:01:09 2 -1.76 2007-09-29 00:03:09 3 -1.83 2007-09-29 00:05:09 4 -1.86 2007-09-29 00:07:09 5 -1.94 2007-09-29 00:09:09 6 -1.87 2007-09-29 00:11:09 7 -1.87 2007-09-29 00:13:09 8 -1.80 2007-09