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| -rw-r--r-- | cmd/jp/scatter.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cmd/jp/scatter.go b/cmd/jp/scatter.go index 2fdf0e6..6649241 100644 --- a/cmd/jp/scatter.go +++ b/cmd/jp/scatter.go @@ -1,6 +1,7 @@ package main import ( + "log" "reflect" "github.com/sgreben/jp/pkg/data" @@ -38,6 +39,9 @@ func scatterPlot(xv, yv []reflect.Value, c draw.Canvas) string { if len(y) > n { n = len(y) } + if len(y) == 0 { + log.Fatal("no valid y values given") + } // If no valid xs are given, use the indices as x values. if len(x) == 0 { x = make([]float64, len(y)) |