histogram

问题 In Gnuplot, I am using a Histogram chart(clustered), but not all data points have valid values. In those places, I want to replace the bar with a vertical text saying "Cannot Serve". How do I do it? My current code: set style data histogram set style histogram cluster gap 2 set boxwidth 0.9 set xtic rotate by -45 scale 0 set output "test.pdf" plot 'data.txt' using 2:xtic(1) fs pattern 1 ti col, '' u 3 fs pattern 2 ti col data file contains: type "magnetic" "electric" "high load" 12000 12721

问题 I have the following data frame in the picture, i want to take a Plot a histogram to show the distribution of all countries in the world for any given year (e.g. 2010). Following is my code table generates after the following code of cleaning: dataSheet = pd.read_excel("http://api.worldbank.org/v2/en/indicator/EN.ATM.CO2E.PC?downloadformat=excel",sheetname="Data") dataSheet = dataSheet.transpose() dataSheet = dataSheet.drop(dataSheet.columns[[0,1]], axis=1) ; dataSheet = dataSheet.drop([

问题 I'm trying to compare two histograms which I stored as an array. I'm new with the c++ interface (cv::Mat) and calculating histograms in OpenCV. My code: int testArr1[4] = {12, 10, 11, 11}; int testArr2[4] = {12, 0, 11, 0}; cv::Mat M1 = cv::Mat(1,4,CV_8UC1, testArr1); cv::Mat M2 = cv::Mat(1,4,CV_8UC1, testArr2); int histSize = 4; float range[] = {0, 20}; const float* histRange = {range}; bool uniform = true; bool accumulate = false; cv::Mat a1_hist, a2_hist; cv::calcHist(&M1, 1, 0, cv::Mat(),

问题 I am trying to replace a use of the old hist function by the new histcounts which performs faster at binning and counting than hist. However, I am struggling to achieve the exact same results from histcounts that I got from hist. I am aware that histcounts returns the bin edges rather than the binCenters. However, the counts should be identical and the bin edges should be convertible to bin centers, as far as I understand. The Matlab reference page for replacing hist with histcounts (see http

问题 I have multiple columns of data, let's say x and time. I want to make a histogram of column x, and color each bar based off an aggregation of the values in column time, where the aggregation is grouped by the breaks used for the histogram. So, d = cbind(c(rep(1,3), rep(2,3)), c(10,20,10,20,10,20)) names(d) = c("x", "time") hist(d[,"x"]) Gives me a nice barplot, and let's say I want something like this for my colors: palette(rainbow(25)) hist(d[,"x"], col=d[,"time"], n=10) I would like to have

问题 I want to add an x axis label below each subplot. I use this code to create the charts: fig = plt.figure(figsize=(16,8)) ax1 = fig.add_subplot(1,3,1) ax1.set_xlim([min(df1["Age"]),max(df1["Age"])]) ax1.set_xlabel("All Age Freq") ax1 = df1["Age"].hist(color="cornflowerblue") ax2 = fig.add_subplot(1,3,2) ax2.set_xlim([min(df2["Age"]),max(df2["Age"])]) ax2.set_xlabel = "Survived by Age Freq" ax2 = df2["Age"].hist(color="seagreen") ax3 = fig.add_subplot(1,3,3) ax3.set_xlim([min(df3["Age"]),max

问题 I'm using JFreeChart to create an image histogram in java swing. In order to create it I iterate over all pixels to get all the colors. Depending on the size and bit depth it takes some time. Once I have all the data I put it into a XYSeriesCollection variable. To be able to show and hide some series latter I save a copy of that variable. My problem is that if I do it like this: final XYSeriesCollection data = createHistogram(); final XYSeriesCollection dataCopy = createHistogram(); It works

问题 I tried to name the x axis correct. hist(InsectSprays$count, col='pink', xlab='Sprays', labels=levels(InsectSprays$spray), xaxt='n') axis(1, at=unique(InsectSprays$spray), labels=levels(InsectSprays$spray)) But this produces I want the letters below the bars and not on top. 回答1: I generally think barplot are more suited for categorical variables. A solution in base R could be, with some rearrangement of the data: d <- aggregate(InsectSprays$count, by=list(spray=InsectSprays$spray), FUN=sum) d

问题 This is a minimal working example of the code I'm using: #!/bin/bash gnuplot << EOF set term postscript portrait color enhanced set encoding iso_8859_1 set output 'temp.ps' set grid noxtics noytics noztics front set size ratio 1 set multiplot set lmargin 9; set bmargin 3; set rmargin 2; set tmargin 1 n=32 #number of intervals max=13. #max value min=-3.0 #min value width=(max-min)/n #interval width hist(x,width)=width*floor(x/width)+width/2.0 set boxwidth width set style fill solid 0.25

问题 I'm trying to make a bar chart /histogram with Gnuplot but I cant seem to get the error bars to come out. This is my code: set style data errorbars set style histogram errorbars gap 2 lw 1 set style data histograms plot "ctcf.dat" using 2:3:3:xtic(1) and data: #Label Mean Error 168-B 24778.23544 33467.8754 168-S 34067.82997 35542.62473 168-B 22519.51553 30835.37332 168-S 112976.1825 143760.3467 But they come out wrong: What am I doing wrong? 回答1: When plotting histograms with errorbars you