# chart

1. ### Determine furthest points on an ellipsoid for charting purposes

Hi, I'm trying to plot an ellipsoid chart with the code below : library(cluster) x <- rnorm(150) y <- rnorm(150) + 2*x + 10) xy <- unname(cbind(x, y) exy <- ellipsoidhull(xy) maxx <- max(xy[,1])*3 maxy <- max(xy[,2])*3 minx <- min(xy[,1])/3 miny <- min(xy[,2])/3 plot(xy...
2. ### Line graph

I have a health insurance variables: do you have health insurance? (yes/no). I have a year variables and a "type of state" variable (3 categories: expanding health insurance policy, not expanding, and debate). I would like a chart of the proportion people that have health insurance by year but...
3. ### trying to figure how to create a stem/leaf chart

hello to all. I have a homework assignment where i have to find the mean, median, mode, variance, etc. i did everything except the stem and leaf chart. I know what a stem and leaf chart is but in my home work example i get a little confused on how to do it exactly. This is the data chart...
4. ### SPSS: Comparing Continuous Variable of Unequal Size Groups (in graphs)

Hi, An advance thanks to all of you for helping out! I am trying to plot a continuous variable (Income) against cumulative percentages (of number of households) to study what % of households have a particular income level. A basic line graph does this well. And the result is a kind of S...
5. ### [SYSTAT] - a few small chart editing issues

Hi - am teaching myself to use SYSTAT (actually MYSTAT) and have two small hang-ups in editing a bar chart. 1) I cannot seem to edit the color of the boxes in the legend to correspond with the color that I have changed the bars in the chart. 2) I have changed the orientation of the Y-axis...
6. ### Shewhart Control Chart Calculate Alpha Errors Under Rules

Two decision rules are given here. Assume they apply to a normally distributed quality characteristic and the sample size is n=5. Rule 1: The control chart uses the three-sigma control limits. If one or more of the next seven samples yield values of the sample average that fall outside the...