-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathsimplexyplot.R
More file actions
209 lines (163 loc) · 5.82 KB
/
Copy pathsimplexyplot.R
File metadata and controls
209 lines (163 loc) · 5.82 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
# simple plot using ggplot
library(ggplot2)
library(extrafont)
library(fontcm)
xvector <- c(0,1,2,3,4,5,6)
yvector <- 2 * xvector
dd <- NULL
dd <- cbind(dd, xvector)
dd <- cbind(dd, yvector)
df <- as.data.frame(dd)
xlimits <- c(0,9)
ylimits <- c(0,12)
xlabel <- "X axis"
ylabel <- "Y axis"
plottitle <- "Graph of y=2x\n"
simplePlotFunction <- function(data,
xlimits,
ylimits,
xlabelstring,
ylabelstring,
plottitle,
fontfamily="sans")
{
returnplot <- ggplot(data=data, aes(x=xvector,y=yvector)) +
theme(
text=element_text(size=20, face="bold", family=fontfamily),
axis.title.x = element_text(vjust = -0.5 )
) +
labs(title=plottitle, x=xlabelstring, y=ylabelstring) +
geom_line(data=data, size=1, color="black" ) +
geom_point(data=data, size=5, color="black" ) +
coord_cartesian(xlim=xlimits, ylim=ylimits) +
scale_y_continuous(breaks=seq(ylimits[1],ylimits[2],2)) +
scale_x_continuous(breaks=seq(xlimits[1],xlimits[2],2))
return(returnplot)
}
PlotFunctionLR <- function(data,
xlimits,
ylimits,
xlabelstring,
ylabelstring,
plottitle,
fontfamily="sans",
ols,
scalextick=2,
scaleytick=2)
{
predval <- as.data.frame(cbind(data$xvector,ols$fit))
returnplot <- ggplot(data=data, aes(x=xvector,y=yvector)) +
theme(
text=element_text(size=20, face="bold", family=fontfamily),
axis.title.x = element_text(vjust = -0.5 )
) +
labs(title=plottitle, x=xlabelstring, y=ylabelstring) +
geom_point(data=data, size=5, color="black") +
# geom_line(data=predval, size=1, color="blue") +
geom_smooth(method=lm, size=1, color="blue", se=FALSE) +
coord_cartesian(xlim=xlimits, ylim=ylimits) +
scale_y_continuous(breaks=seq(ylimits[1],ylimits[2],scaleytick)) +
scale_x_continuous(breaks=seq(xlimits[1],xlimits[2],scalextick))
return(returnplot)
}
myplot <- simplePlotFunction(data=df, xlimits=xlimits,
ylimits=ylimits,
xlabelstring=xlabel,
ylabelstring=ylabel,
plottitle=plottitle )
# If you want to use a system font that isn't postscript, you'll have to
# change the fontfamily to "CM Sans" or whatever, and output to PDF
# instead of PNG or whatever.
#
#ggsave("ggplot_cm.pdf", myplot, width=5.5, height=5)
#embed_fonts("ggplot_cm.pdf", outfile="ggplot_cm_embed.pdf")
png(filename="simplexyplot.png",
width=5.5, height=5, units="in", pointsize=12, bg="white", res=300,
type="quartz"
)
myplot
dev.off()
# NOW, for example 2:
xvector <- c(1,2,7,4,5)
yvector <- c(4,5,11,9,8)
dd <- NULL
dd <- cbind(dd, xvector)
dd <- cbind(dd, yvector)
df <- as.data.frame(dd)
plottitle <- "Graph of an unknown function\n"
myplot <- simplePlotFunction(data=df,
xlimits=xlimits,
ylimits=ylimits,
xlabelstring=xlabel,
ylabelstring=ylabel,
plottitle=plottitle )
png(filename="errorxyplot.png",
width=5.5, height=5, units="in", pointsize=12, bg="white", res=300,
type="quartz"
)
myplot
dev.off()
# and example 3:
xvector <- c(1,2,7,4,5,3, 4.5, 6 )
yvector <- c(4,5,11,9,8,6,7, 11 )
dd <- NULL
dd <- cbind(dd, xvector)
dd <- cbind(dd, yvector)
df <- as.data.frame(dd)
olsresult <- lm(df, formula = yvector ~ xvector)
plottitle <- "Graph of an unknown function\n"
myplot <- PlotFunctionLR(data=df,
xlimits=xlimits,
ylimits=ylimits,
xlabelstring=xlabel,
ylabelstring=ylabel,
plottitle=plottitle,
ols=olsresult )
myplot <- myplot + geom_text(aes(6, 4, label="Y-intercept: 2.6"), size=10)
myplot <- myplot + geom_text(aes(5.4, 2, label="Slope: 1.23"), size=10)
png(filename="errorxyplotlr.png",
width=5.5, height=5, units="in", pointsize=12, bg="white", res=300,
type="quartz"
)
myplot
dev.off()
# and example 4:
xvector <- c(1,2,7,4,5,3, 4.5, 6 )
yvector <- xvector^2
dd <- NULL
dd <- cbind(dd, xvector)
dd <- cbind(dd, yvector)
df <- as.data.frame(dd)
xlimits <- c(0,9)
ylimits <- c(0,50)
olsresult <- lm(df, formula = yvector ~ xvector)
plottitle <- "Graph of an unknown function\n"
myplot <- PlotFunctionLR(data=df, xlimits=xlimits, ylimits=ylimits, xlabelstring=xlabel, ylabelstring=ylabel, plottitle=plottitle, ols=olsresult, scaleytick=10 )
myplot <- myplot + geom_text(aes(3, 40, label="Y-intercept: -12.2"), size=8)
myplot <- myplot + geom_text(aes(2.3, 34, label="Slope: 7.94"), size=8)
png(filename="errorxyplotlrexponential1.png",
width=5.5, height=5, units="in", pointsize=12, bg="white", res=300,
type="quartz"
)
myplot
dev.off()
# and example 5:
xvector <- c(seq(0,32,2) )
yvector <- xvector^2
dd <- NULL
dd <- cbind(dd, xvector)
dd <- cbind(dd, yvector)
df <- as.data.frame(dd)
xlimits <- c(0,33)
ylimits <- c(0,1050)
olsresult <- lm(df, formula = yvector ~ xvector)
plottitle <- "Graph of an unknown function\n"
myplot <- PlotFunctionLR(data=df, xlimits=xlimits, ylimits=ylimits, xlabelstring=xlabel, ylabelstring=ylabel, plottitle=plottitle, ols=olsresult, scaleytick=100, scalextick=5 )
#myplot <- myplot + geom_text(aes(6, 4, label="Y-intercept: 2.6"), size=10)
#myplot <- myplot + geom_text(aes(5.4, 2, label="Slope: 1.23"), size=10)
png(filename="errorxyplotlrexponential2.png",
width=5.75, height=5, units="in", pointsize=12, bg="white", res=300,
type="quartz"
)
myplot
dev.off()